ClearAg

Irrigation Decision Support APIs

Iteris’ Irrigation APIs enable localized, predictive irrigation analytics to help customers establish more efficient irrigation management and improve crop system performance without the requirement for additional hardware.

EvapoSmart

last updated 11/7/18

EvapoSmart provides the necessary precipitation and crop-specific evapotranspiration data, utilizing crop coefficients, that are needed to complete the necessary water budget calculations in the absence of detailed soil and crop growth stage information. This service provides data for any location in the world. Hourly conditions are available for any period beginning January 1 of the previous calendar year through nine days into the future. Daily values are available for any period beginning January 1, 1980 through nine days into the future. Note that daily values represent summaries of conditions spanning midnight to midnight local time for the requested location timezone.

This bundle requires and includes the Accounts API.

Iteris requires the use of https when working within the ClearAg APIs.

Irrigation Hourly - v1.0

The Irrigation Hourly endpoint returns hourly weather data useful for irrigation management for a field and metadata associated with the field. Data may span historical and forecast timeframes.

URL Description

https://ag.clearapis.com/v1.0/crop_health/irrigation/conditions/hourly?
app_id={string}&app_key={string}&account_id={string}&user_id={string}
&field_id={string}&start_time={unix timestamp}&end_time={unix timestamp}
&start_offset={integer}&end_offset={integer}&plant_date={unix timestamp}
&kc_crop_id={string}&length_initial={integer}&length_development={integer}
&length_midseason={integer}&length_late={integer}&length_total={integer}
&kc_initial={float}&kc_midseason={float}&kc_end={float}&unitcode={string}

Request Parameters

Parameter Type Required Description

app_id

string

yes

API ID provided by Iteris.

app_key

string

yes

API key provided by Iteris.

account_id

string

yes

A unique account ID provided by an Iteris account representative.

user_id

string

yes

User ID provided by the Create User endpoint as a result of adding a new user to the user information database.

field_id

string

yes

ID of field.

start_time

unix timestamp

yes

Query start time. Please refer to section Epoch/Unix Timestamp of the Appendix for Iteris' definition of Epoch/Unix timestamp. Maximum is 240 hours into the future. If provided, "end_time" is required. User must provide only one set of the same type of "start" and "end" parameters.

end_time

unix timestamp

yes

Query end time. Please refer to section Epoch/Unix Timestamp of the Appendix for Iteris' definition of Epoch/Unix timestamp. Maximum is 240 hours into the future. If provided, "start_time" is required. In combination with "start_time," query timeframe may not exceed 240 hours. User must provide only one set of the same type of "start" and "end" parameters.

start_offset

integer

yes

Query start time offset relative to the current hour, in number of hours. May be either positive or negative. Maximum is 240. If provided, "end_offset" is required. User must provide only one set of the same type of "start" and "end" parameters.

end_offset

integer

yes

Query end time offset relative to the current hour, in number of hours. May be either positive or negative. Maximum is 240. If provided, "start_offset" is required. In combination with "start_offset," query timeframe may not exceed 240 hours. User must provide only one set of the same type of "start" and "end" parameters.

plant_date

unix timestamp

no

Used to initialize the crop coefficient model and can represent either an actual planting date or the date of breaking of dormancy for perennials. Please refer to section Epoch/Unix Timestamp of the Appendix for Iteris' definition of Epoch/Unix timestamp. Invalid argument if either "kc_crop_id" is not provided, or at minimum "length_initial," "length_development," "kc_initial," and "kc_midseason" are not specified. If "plant_date" not provided, the crop coefficient model begins at the start of the response.

kc_crop_id

string

no

An ID representing a set of default stage lengths and crop coefficients for a specific combination of crop type, planting date, and field location.4

length_initial

integer

no

Length, in days, of the initial growth stage. Defined as the portion of the growing season starting at the time of planting and lasting until approximately 10% ground cover. May be used in combination with "kc_crop_id" to reset the default value.4

length_development

integer

no

Length, in days, of the development stage. Defined as the portion of the growing season starting at the time the crop reaches about 10% ground cover and lasting until full ground cover. May be used in combination with "kc_crop_id" to reset the default value.4

length_midseason

integer

no

Length, in days, of the mid-season stage. Defined as the portion of the growing season starting at the time the crop reaches full ground cover and lasting until the start of maturity. May be used in combination with "kc_crop_id" to reset the default value.4

length_late

integer

no

Length, in days, of the late-season stage. Defined as the portion of the growing season beginning at the start of maturity and lasting until harvest or full senescence. May be used in combination with "kc_crop_id" to reset the default value.4

length_total

integer

no

Length, in days, of the entire growing season. Used to proportionally scale the stage lengths. Invalid argument if any of the stage lengths or crop coefficients are not defined for the chosen crop.

kc_initial

float

no

Crop coefficient valid during the initial growth stage. May be used in combination with "kc_crop_id" to reset the default value.4

kc_midseason

float

no

Crop coefficient valid during the mid-season stage. May be used in combination with "kc_crop_id" to reset the default value.4

kc_end

float

no

Crop coefficient valid at the end of the growing season. May be used in combination with "kc_crop_id" to reset the default value.4

unitcode

string

no

Unit conversion set to be used. Default is "us-std." Valid values are "us-std," "si-std," "us-std-precise," and "si-std-precise." Values of "us-std-precise" and "si-std-precise" round output values to six decimal places.

4 Either "kc_crop_id," or all of "length_initial," "length_development," "kc_initial," and "kc_midseason" are the minimum required for calculating crop-specific evapotranspiration. Users may forgo specifying "kc_crop_id" in favor of adding custom settings for stage lengths and crop coefficients. Note that some crop IDs do not provide default settings for all stage lengths and crop coefficients. Provision of only the "length_initial," "length_development," "kc_initial," and "kc_midseason" model parameters results in crop coefficients being modeled only up to the mid-season stage, beyond which the crop is taken to remain in the mid-season stage indefinitely. To model an entire growing season, "length_midseason," "length_late," and "kc_end" must also be defined. Please refer to the Crop Coefficients section of the Appendix for the listing of supported crop IDs and default settings.

Response Object (JSON)

Field Description

air_temp

Air temperature at two meters above ground level.

dew_point

Dew point temperature at two meters above ground level.

et0_acc_period

One hour accumulated reference evapotranspiration in inches or millimeters. Reference evapotranspiration is the amount of water that would transpire and evaporate from a hypothetical reference crop, assuming that ample water is available. In this case, short green grass is used as the reference crop.

etc_acc_period

One hour accumulated depth of water in inches or millimeters, actually evapotranspired, based on the particular crop, soil, and weather conditions of the custom analysis.

forecast

"True" if the data come from forecast data, or "false" if from historical data.

kc

Crop coefficient value used to calculate crop-specific evapotranspiration.

precip_acc_period

One hour accumulated precipitation (liquid equivalent).

precip_prob

Probability of precipitation ("n/a" for historical timeframes).

relative_humidity

Relative humidity at two meters above ground level.

short_wave_radiation

Downwelling shortwave radiation flux in watts per square meter.

wind_speed

Wind speed at 10 meters above ground level.

acres

Size of field in acres.

created

Timestamp valid at the time the field was added to the database.

field_id

ID of field.

latitude

Latitude coordinate near the center of the field in decimal degrees. Please verify that latitude/longitude coordinates are over soil representative of your field.

longitude

Longitude coordinate near the center of the field in decimal degrees. Please verify that latitude/longitude coordinates are over soil representative of your field.

name

Name of field.

units

Contains a mapping of response parameters to the associated unit.

Example Request

https://ag.clearapis.com/v1.0/crop_health/irrigation/conditions/hourly?
app_id=54321&app_key=12345&account_id=abc-123&user_id=abc-456
&field_id=def-123&start_time=1497549600&end_time=1497556800
&kc_crop_id=1.0

Example Response

{
    "data":{
        "1497549600":{
            "air_temp":75.0,
            "dew_point":51.0,
            "et0_acc_period":0.13,
            "et_acc_period":0.15,
            "forecast":"False",
            "kc":0.7,
            "precip_acc_period":0.0,
            "precip_prob":"n/a",
            "relative_humidity":43.0,
            "short_wave_radiation":17.0,
            "wind_speed":22.0
        },...
    },
    "metadata":{
        "field_properties":{
            "acres":39.9,
            "created":1486574949,
            "field_id":"def-123",
            "latitude":47.3,
            "longitude":-99.7,
            "name":"Unnamed field"
        },
        "units":{
            "air_temp":"F",
            "dew_point":"F",
            "et0_acc_period":"in",
            "et_acc_period":"in",
            "kc":"n/a",
            "precip_acc_period":"in",
            "precip_prob":"n/a",
            "relative_humidity":"%",
            "short_wave_radiation":"W / m ^ 2",
            "wind_speed":"mph"
        }
    }
}

Irrigation Daily - v1.0

The Irrigation Daily endpoint returns daily weather data useful for irrigation management for a field and metadata associated with the field. Data may span historical and forecast timeframes.

URL Description

https://ag.clearapis.com/v1.0/crop_health/irrigation/conditions/daily?
app_id={string}&app_key={string}&account_id={string}&user_id={string}
&field_id={string}&start_date={string}&end_date={string}
&start_time={unix timestamp}&end_time={unix timestamp}
&start_offset={integer}&end_offset={integer}&plant_date={unix timestamp}
&kc_crop_id={string}&length_initial={integer}&length_development={integer}
&length_midseason={integer}&length_late={integer}&length_total={integer}
&kc_initial={float}&kc_midseason={float}&kc_end={float}&unitcode={string}

Request Parameters

Parameter Type Required Description

app_id

string

yes

API ID provided by Iteris.

app_key

string

yes

API key provided by Iteris.

account_id

string

yes

A unique account ID provided by an Iteris account representative.

user_id

string

yes

User ID provided by the Create User endpoint as a result of adding a new user to the user information database.

field_id

string

yes

ID of field.

start_date

string

yes

Query start date formatted as a date string (YYYY-MM-DD). Maximum is nine days into the future. If provided, "end_date" is required. User must provide only one set of the same type of "start" and "end" parameters.

end_date

string

yes

Query end date formatted as a date string (YYYY-MM-DD). Maximum is nine days into the future. If provided, "start_date" is required. In combination with "start_date," query timeframe may not exceed 366 days. User must provide only one set of the same type of "start" and "end" parameters.

start_time

unix timestamp

yes

Query start time. Please refer to section Epoch/Unix Timestamp of the Appendix for Iteris' definition of Epoch/Unix timestamp. Maximum is the timestamp corresponding to nine days into the future at 23 UTC. If provided, "end_time" is required. User must provide only one set of the same type of "start" and "end" parameters.

end_time

unix timestamp

yes

Query end time. Please refer to section Epoch/Unix Timestamp of the Appendix for Iteris' definition of Epoch/Unix timestamp. Maximum is the timestamp corresponding to nine days into the future at 23 UTC. If provided, "start_time" is required. In combination with "start_time," query timeframe may not exceed 366 days. User must provide only one set of the same type of "start" and "end" parameters.

start_offset

integer

yes

Query start time offset relative to the current day, in number of days. May be either positive or negative. Maximum is nine. If provided, "end_offset" is required.

end_offset

integer

yes

Query end time offset relative to the current day, in number of days. May be either positive or negative. Maximum is nine. If provided, "start_offset" is required. In combination with "start_offset," query timeframe may not exceed 366 days.

plant_date

unix timestamp

no

Used to initialize the crop coefficient model and can represent either an actual planting date or the date of breaking of dormancy for perennials. Please refer to section Epoch/Unix Timestamp of the Appendix for Iteris' definition of Epoch/Unix timestamp. Invalid argument if either "kc_crop_id" is not provided, or at minimum "length_initial," "length_development," "kc_initial," and "kc_midseason" are not specified. If "plant_date" is not provided, the crop coefficient model begins at the start of the response.

kc_crop_id

string

no

An ID representing a set of default stage lengths and crop coefficients for a specific combination of crop type, planting date, and field location.4

length_initial

integer

no

Length, in days, of the initial growth stage. Defined as the portion of the growing season starting at the time of planting and lasting until approximately 10% ground cover. May be used in combination with "kc_crop_id" to reset the default value.4

length_development

integer

no

Length, in days, of the development stage. Defined as the portion of the growing season starting at the time the crop reaches about 10% ground cover and lasting until full ground cover. May be used in combination with "kc_crop_id" to reset the default value.4

length_midseason

integer

no

Length, in days, of the mid-season stage. Defined as the portion of the growing season starting at the time the crop reaches full ground cover and lasting until the start of maturity. May be used in combination with "kc_crop_id" to reset the default value. 4

length_late

integer

no

Length, in days, of the late-season stage. Defined as the portion of the growing season beginning at the start of maturity and lasting until harvest or full senescence. May be used in combination with "kc_crop_id" to reset the default value.4

length_total

integer

no

Length, in days, of the entire growing season. Used to proportionally scale the stage lengths. Invalid argument if any of the stage lengths or crop coefficients are not defined for the chosen crop.

kc_initial

float

no

Crop coefficient valid during the initial growth stage. May be used in combination with "kc_crop_id" to reset the default value.4

kc_midseason

float

no

Crop coefficient valid during the mid-season stage. May be used in combination with "kc_crop_id" to reset the default value.4

kc_end

float

no

Crop coefficient valid at the end of the growing season. May be used in combination with "kc_crop_id" to reset the default value.4

unitcode

string

no

Unit conversion set to be used. Default is "us-std." Valid values are "us-std," "si-std," "us-std-precise," and "si-std-precise." Values of "us-std-precise" and "si-std-precise" round output values to six decimal places.

4 Either "kc_crop_id," or all of "length_initial," "length_development," "kc_initial," and "kc_midseason" are the minimum required for calculating crop-specific evapotranspiration. Users may forgo specifying "kc_crop_id" in favor of adding custom settings for stage lengths and crop coefficients. Note that some crop IDs do not provide default settings for all stage lengths and crop coefficients. Provision of only the "length_initial," "length_development," "kc_initial," and "kc_midseason" model parameters results in crop coefficients being modeled only up to the mid-season stage, beyond which the crop is taken to remain in the mid-season stage indefinitely. To model an entire growing season, "length_midseason," "length_late," and "kc_end" must also be defined. Please refer to the Crop Coefficients section of the Appendix for the listing of supported crop IDs and default settings.

Response Object (JSON)

Field Description

air_temp_avg

Average air temperature at two meters above ground level.

air_temp_max

Maximum air temperature at two meters above ground level.

air_temp_min

Minimum air temperature at two meters above ground level.

dew_point_avg

Average dew point temperature at two meters above ground level.

dew_point_max

Maximum dew point temperature at two meters above ground level.

dew_point_min

Minimum dew point temperature at two meters above ground level.

et0_acc_period

One hour accumulated reference evapotranspiration in inches or millimeters. Reference evapotranspiration is the amount of water that would transpire and evaporate from a hypothetical reference crop, assuming that ample water is available. In this case, short green grass is used as the reference crop.

etc_acc_period

One hour accumulated depth of water in inches or millimeters, actually evapotranspired, based on the particular crop, soil, and weather conditions of the custom analysis.

forecast

"True" if the data come from forecast data, or "false" if from historical data.

kc

Crop coefficient value used to calculate crop-specific evapotranspiration.

precip_acc_period

24-hour accumulated precipitation (liquid equivalent).

precip_prob

Probability of precipitation ("n/a" for historical timeframes).

relative_humidity_avg

Average relative humidity at two meters above ground level.

relative_humidity_max

Maximum relative humidity at two meters above ground level.

relative_humidity_min

Minimum relative humidity at two meters above ground level.

short_wave_radiation_avg

24-hour average downwelling shortwave radiation flux in watts per square meter.

short_wave_radiation_max

24-hour maximum downwelling shortwave radiation flux in watts per square meter.

short_wave_radiation_min

24-hour minimum downwelling shortwave radiation flux in watts per square meter.

wind_speed_avg

Average wind speed at 10 meters above ground level.

wind_speed_max

Maximum wind speed at 10 meters above ground level.

wind_speed_min

Minimum wind speed at 10 meters above ground level.

acres

Size of field in acres.

created

Timestamp valid at the time the field was added to the database.

field_id

ID of field.

latitude

Latitude coordinate near the center of the field in decimal degrees. Please verify that latitude/longitude coordinates are over soil representative of your field.

longitude

Longitude coordinate near the center of the field in decimal degrees. Please verify that latitude/longitude coordinates are over soil representative of your field.

name

Name of field.

units

Contains a mapping of response parameters to the associated unit.

Example Request

https://ag.clearapis.com/v1.0/crop_health/irrigation/conditions/daily?
app_id=54321&app_key=12345&account_id=abc-123&user_id=123-abc
&field_id=def-123&start_offset=-1&end_offset=1&kc_crop_id=1.0

Example Response

{
    "data":{
        "2017-06-15":{
            "air_temp_avg":71.0,
            "air_temp_max":84.0,
            "air_temp_min":61.0,
            "dew_point_avg":54.0,
            "dew_point_max":57.0,
            "dew_point_min":47.0,
            "et0_acc_period":0.13,
            "et_acc_period":0.15,
            "forecast":"False",
            "kc":0.7,
            "precip_acc_period":0.0,
            "precip_prob":"n/a",
            "relative_humidity_avg":58.0,
            "relative_humidity_max":84.0,
            "relative_humidity_min":29.0,
            "short_wave_radiation_avg":300.0,
            "short_wave_radiation_max":864.0,
            "short_wave_radiation_min":0.0,
            "wind_speed_avg":13.0,
            "wind_speed_max":23.0,
            "wind_speed_min":0.0
        },...
    },
    "metadata":{
        "field_properties":{
            "acres":39.9,
            "created":1486574949,
            "field_id":"def-123",
            "latitude":47.3,
            "longitude":-99.7,
            "name":"Unnamed field",
        },
        "units":{
            "air_temp_avg":"F",
            "air_temp_max":"F",
            "air_temp_min":"F",
            "dew_point_avg":"F",
            "dew_point_max":"F",
            "dew_point_min":"F",
            "et0_acc_period":"in",
            "et_acc_period":"in",
            "kc":"n/a",
            "precip_acc_period":"in",
            "precip_prob":"%",
            "short_wave_radiation_avg":"W/m^2",
            "short_wave_radiation_max":"n/a",
            "short_wave_radiation_min":"n/a",
            "relative_humidity_avg":"%",
            "relative_humidity_max":"%",
            "relative_humidity_min":"%",
            "wind_speed_avg":"mph",
            "wind_speed_max":"mph",
            "wind_speed_min":"mph"
        }
    }
}

Appendix

Common HTTP response codes

The following are common HTTP response codes and their meanings. These are standard across all API services.

  • 200 OK - The request was successful.

  • 400 Bad Request - The request was invalid. An accompanying error message will be provided if available.

  • 401 Unauthorized - Authentication to the API has failed. Authentication credentials are missing or incorrect.

  • 403 Forbidden - You are trying to access a resource for which you do not have the appropriate privileges.

  • 404 Not found - The requested resource was not found. An accompanying error message will be provided if available.

  • 500 Internal Server Error - An internal server error has occurred while processing the request.

  • 502 Bad Gateway - The service is not reachable.

Null or Empty Values

In some cases values will be represented as "n/a." This indicates that the requested data is not available or is not applicable.

Epoch/Unix Timestamp

Iteris employs Epoch/Unix timestamps for some time-based parameters. Timestamps are defined as the number of seconds since 1970-01-01 00:00 Coordinated Universal Time (UTC).

Note that in daily endpoints, timestamps as URL arguments do not necessarily conform to this definition. In these endpoints, timestamps can be thought of as being relative to the local time zone. For example, a plant_date timestamp corresponding to 2016-05-01 00:00 UTC in the Corn Growth endpoint can be viewed as 2016-05-01 00:00 local time, and the endpoint returns data starting on that date.

Regional-based Account Access

Any data stored by the Account API in one region is not available in another. Each region will require a unique set of credentials. Please contact your account representative if interested in utilizing an additional region. When attempting to use the credentials from one region with the services in another, an 'account not found' error will be returned with HTTP status code 400. See example below:

<title>400 Bad Request</title>
<h1>Bad Request</h1>
<p>Account not found.</p>

Crop Coefficients

Note that the following table is largely derived from FAO Irrigation and Drainage Paper No. 56 Crop Evapotranspiration by Allen, Pereira, Raes, and Smith (Tables 11 and 12). IDs on each row correspond to a unique combination of crop, plant date, and region. Stage lengths, plant date, and region correspond to crops in length_crop column, and crop coefficients correspond to crops in kc_crop column. Each row contains a set of two crops since the two tables from which the data are derived do not perfectly map to each other—​for example leading to a pairing of "Crucifers" and "Brussels sprouts", which is a type of crucifer.

ID length_crop length_initial/ length_development/ length_midseason/ length_late Plant Date Region kc_crop kc_initial/ kc_midseason/ kc_end

1.0

Broccoli

35 / 45 / 40 / 15

Sep

Calif. Desert

Broccoli

0.7 / 1.05 / 0.95

1.1

Crucifers

20 / 30 / 20 / 10

Apr

Medit.

Brussels sprouts

0.7 / 1.05 / 0.95

1.2

Crucifers

25 / 35 / 25 / 10

Feb

Medit.

Brussels sprouts

0.7 / 1.05 / 0.95

1.3

Crucifers

30 / 35 / 90 / 40

Oct/Nov

Medit.

Brussels sprouts

0.7 / 1.05 / 0.95

1.4

Cabbage

40 / 60 / 50 / 15

Sep

Calif. Desert

Cabbage

0.7 / 1.05 / 0.95

1.5

Carrots

20 / 30 / 50 / 20

Oct

Arid Region

Carrots

0.7 / 1.05 / 0.95

1.6

Carrots

20 / 30 / 30 / 20

Jan

Arid Region

Carrots

0.7 / 1.05 / 0.95

1.7

Carrots

30 / 40 / 60 / 20

Feb/Mar

Medit.

Carrots

0.7 / 1.05 / 0.95

1.8

Carrots

30 / 50 / 90 / 30

Oct

Calif. Desert

Carrots

0.7 / 1.05 / 0.95

1.9

Cauliflower

35 / 50 / 40 / 15

Sep

Calif. Desert

Cauliflower

0.7 / 1.05 / 0.95

1.10

Celery

25 / 40 / 95 / 20

Oct

Semi-Arid Region

Celery

0.7 / 1.05 / 1

1.11

Celery

25 / 40 / 45 / 15

Apr

Medit.

Celery

0.7 / 1.05 / 1

1.12

Celery

30 / 55 / 105 / 20

Jan

Semi-Arid Region

Celery

0.7 / 1.05 / 1

1.13

Lettuce

20 / 30 / 15 / 10

Apr

Medit.

Lettuce

0.7 / 1 / 0.95

1.14

Lettuce

30 / 40 / 25 / 10

Nov/Jan

Medit.

Lettuce

0.7 / 1 / 0.95

1.15

Lettuce

25 / 35 / 30 / 10

Oct/Nov

Arid Region

Lettuce

0.7 / 1 / 0.95

1.16

Lettuce

35 / 50 / 45 / 10

Feb

Medit.

Lettuce

0.7 / 1 / 0.95

1.17

Onion (dry)

15 / 25 / 70 / 40

Apr

Medit.

Onion (dry)

0.7 / 1.05 / 0.75

1.18

Onion (dry)

20 / 35 / 110 / 45

Oct

Arid Region

Onion (dry)

0.7 / 1.05 / 0.75

1.19

Onion (dry)

20 / 35 / 110 / 45

Jan

California

Onion (dry)

0.7 / 1.05 / 0.75

1.20

Onion (green)

25 / 30 / 10 / 5

Apr/May

Medit.

Onion (green)

0.7 / 1 / 1

1.21

Onion (green)

20 / 45 / 20 / 10

Oct

Arid Region

Onion (green)

0.7 / 1 / 1

1.22

Onion (green)

30 / 55 / 55 / 40

Mar

California

Onion (green)

0.7 / 1 / 1

1.23

Onion (seed)

20 / 45 / 165 / 45

Sep

Calif. Desert

Onion (seed)

0.7 / 1.05 / 0.8

1.24

Spinach

20 / 20 / 15 / 5

Apr

Medit.

Spinach

0.7 / 1 / 0.95

1.25

Spinach

20 / 20 / 25 / 5

Sep/Oct

Medit.

Spinach

0.7 / 1 / 0.95

1.26

Spinach

20 / 30 / 40 / 10

Nov

Arid Region

Spinach

0.7 / 1 / 0.95

1.27

Radish

5 / 10 / 15 / 5

Mar/Apr

Medit.

Radish

0.7 / 0.9 / 0.85

1.28

Radish

5 / 10 / 15 / 5

Mar/Apr

Europe

Radish

0.7 / 0.9 / 0.85

1.29

Radish

10 / 10 / 15 / 5

Winter

Arid Region

Radish

0.7 / 0.9 / 0.85

2.0

Egg plant

30 / 40 / 40 / 20

Oct

Arid Region

Egg plant

0.6 / 1.05 / 0.9

2.1

Egg plant

30 / 45 / 40 / 25

May/Jun

Medit.

Egg plant

0.6 / 1.05 / 0.9

2.2

Sweet peppers (bell)

25 / 35 / 40 / 20

Apr

Europe

Sweet peppers (bell)

0.6 / 1.05 / 0.9

2.3

Sweet peppers (bell)

30 / 35 / 40 / 20

Jun

Europe

Sweet peppers (bell)

0.6 / 1.05 / 0.9

2.4

Sweet peppers (bell)

25 / 35 / 40 / 20

Apr

Medit.

Sweet peppers (bell)

0.6 / 1.05 / 0.9

2.5

Sweet peppers (bell)

30 / 35 / 40 / 20

Jun

Medit.

Sweet peppers (bell)

0.6 / 1.05 / 0.9

2.6

Sweet peppers (bell)

30 / 40 / 110 / 30

Oct

Arid Region

Sweet peppers (bell)

0.6 / 1.05 / 0.9

2.7

Tomato

30 / 40 / 40 / 25

Jan

Arid Region

Tomato

0.6 / 1.15 / 0.8

2.8

Tomato

35 / 40 / 50 / 30

Apr/May

California

Tomato

0.6 / 1.15 / 0.8

2.9

Tomato

25 / 40 / 60 / 30

Jan

Calif. Desert

Tomato

0.6 / 1.15 / 0.8

2.10

Tomato

35 / 45 / 70 / 30

Oct/Nov

Arid Region

Tomato

0.6 / 1.15 / 0.8

2.11

Tomato

30 / 40 / 45 / 30

Apr/May

Medit.

Tomato

0.6 / 1.15 / 0.8

3.0

Cantaloupe

30 / 45 / 35 / 10

Jan

California

Cantaloupe

0.5 / 0.85 / 0.6

3.1

Cantaloupe

10 / 60 / 25 / 25

Aug

California

Cantaloupe

0.5 / 0.85 / 0.6

3.2

Cucumber

20 / 30 / 40 / 15

Jun/Aug

Arid Region

Cucumber (fresh market)

0.6 / 1 / 0.75

3.3

Cucumber

25 / 35 / 50 / 20

Nov/Feb

Arid Region

Cucumber (fresh market)

0.6 / 1 / 0.75

3.4

Cucumber

20 / 30 / 40 / 15

Jun/Aug

Arid Region

Cucumber (machine harvest)

0.5 / 1 / 0.9

3.5

Cucumber

25 / 35 / 50 / 20

Nov/Feb

Arid Region

Cucumber (machine harvest)

0.5 / 1 / 0.9

3.6

Pumpkin

20 / 30 / 30 / 20

Mar/Aug

Medit.

Pumpkin

0.5 / 1 / 0.8

3.7

Pumpkin

25 / 35 / 35 / 25

Jun

Europe

Pumpkin

0.5 / 1 / 0.8

3.8

Winter squash

20 / 30 / 30 / 20

Mar/Aug

Medit.

Winter Squash

0.5 / 1 / 0.8

3.9

Winter squash

25 / 35 / 35 / 25

Jun

Europe

Winter Squash

0.5 / 1 / 0.8

3.10

Squash

25 / 35 / 25 / 15

Apr

Medit.

Squash

0.5 / 0.95 / 0.75

3.11

Squash

25 / 35 / 25 / 15

Dec

Arid Region

Squash

0.5 / 0.95 / 0.75

3.12

Squash

20 / 30 / 25 / 15

May/Jun

Medit.

Squash

0.5 / 0.95 / 0.75

3.13

Squash

20 / 30 / 25 / 15

May/Jun

Europe

Squash

0.5 / 0.95 / 0.75

3.14

Zucchini

25 / 35 / 25 / 15

Apr

Medit.

Zucchini

0.5 / 0.95 / 0.75

3.15

Zucchini

25 / 35 / 25 / 15

Dec

Arid Region

Zucchini

0.5 / 0.95 / 0.75

3.16

Zucchini

20 / 30 / 25 / 15

May/Jun

Medit.

Zucchini

0.5 / 0.95 / 0.75

3.17

Zucchini

20 / 30 / 25 / 15

May/Jun

Europe

Zucchini

0.5 / 0.95 / 0.75

3.18

Sweet melons

25 / 35 / 40 / 20

May

Medit.

Sweet Melons

0.5 / 1.05 / 0.75

3.19

Sweet melons

30 / 30 / 50 / 30

Mar

California

Sweet Melons

0.5 / 1.05 / 0.75

3.20

Sweet melons

15 / 40 / 65 / 15

Aug

Calif. Desert

Sweet Melons

0.5 / 1.05 / 0.75

3.21

Sweet melons

30 / 45 / 65 / 20

Dec/Jan

Arid Region

Sweet Melons

0.5 / 1.05 / 0.75

3.22

Watermelon

20 / 30 / 30 / 30

Apr

Italy

Watermelon

0.4 / 1 / 0.75

3.23

Watermelon

10 / 20 / 20 / 30

May/Aug

Near East Desert

Watermelon

0.4 / 1 / 0.75

4.0

Beets (table)

15 / 25 / 20 / 10

Apr/May

Medit.

Beets (table)

0.5 / 1.05 / 0.95

4.1

Beets (table)

25 / 30 / 25 / 10

Feb/Mar

Medit.

Beets (table)

0.5 / 1.05 / 0.95

4.2

Beets (table)

25 / 30 / 25 / 10

Feb/Mar

Arid Region

Beets (table)

0.5 / 1.05 / 0.95

4.3

Cassava (year 1)

20 / 40 / 90 / 60

Rainy Season

Tropical region

Cassava (year 1)

0.3 / 0.8 / 0.3

4.4

Cassava (year 2)

150 / 40 / 110 / 60

Rainy Season

Tropical region

Cassava (year 2)

0.3 / 1.1 / 0.5

4.5

Potato

25 / 30 / 30 / 30

Jan

Semi-Arid Region

Potato

0.5 / 1.15 / 0.75

4.6

Potato

25 / 30 / 45 / 30

Nov

Semi-Arid Region

Potato

0.5 / 1.15 / 0.75

4.7

Potato

25 / 30 / 45 / 30

May

Continental Region

Potato

0.5 / 1.15 / 0.75

4.8

Potato

30 / 35 / 50 / 30

Apr

Europe

Potato

0.5 / 1.15 / 0.75

4.9

Potato

45 / 30 / 70 / 20

Apr/May

Idaho

Potato

0.5 / 1.15 / 0.75

4.10

Potato

30 / 35 / 50 / 25

Dec

Calif. Desert

Potato

0.5 / 1.15 / 0.75

4.11

Sweet potato

20 / 30 / 60 / 40

Apr

Medit.

Sweet potato

0.5 / 1.15 / 0.65

4.12

Sweet potato

15 / 30 / 50 / 30

Rainy Season

Tropical Region

Sweet potato

0.5 / 1.15 / 0.65

4.13

Crucifers

20 / 30 / 20 / 10

Apr

Medit.

Turnip

0.5 / 1.1 / 0.95

4.14

Crucifers

25 / 35 / 25 / 10

Feb

Medit.

Turnip

0.5 / 1.1 / 0.95

4.15

Crucifers

30 / 35 / 90 / 40

Oct/Nov

Medit.

Turnip

0.5 / 1.1 / 0.95

4.16

Crucifers

20 / 30 / 20 / 10

Apr

Medit.

Rutabaga

0.5 / 1.1 / 0.95

4.17

Crucifers

25 / 35 / 25 / 10

Feb

Medit.

Rutabaga

0.5 / 1.1 / 0.95

4.18

Crucifers

30 / 35 / 90 / 40

Oct/Nov

Medit.

Rutabaga

0.5 / 1.1 / 0.95

4.19

Sugarbeet

30 / 45 / 90 / 15

Mar

California

Sugarbeet

0.35 / 1.2 / 0.7

4.20

Sugarbeet

25 / 30 / 90 / 10

Jun

California

Sugarbeet

0.35 / 1.2 / 0.7

4.21

Sugarbeet

25 / 65 / 100 / 65

Sep

Calif. Desert

Sugarbeet

0.35 / 1.2 / 0.7

4.22

Sugarbeet

50 / 40 / 50 / 40

Apr

Idaho

Sugarbeet

0.35 / 1.2 / 0.7

4.23

Sugarbeet

25 / 35 / 50 / 50

May

Medit.

Sugarbeet

0.35 / 1.2 / 0.7

4.24

Sugarbeet

45 / 75 / 80 / 30

Nov

Medit.

Sugarbeet

0.35 / 1.2 / 0.7

4.25

Sugarbeet

35 / 60 / 70 / 40

Nov

Arid Region

Sugarbeet

0.35 / 1.2 / 0.7

5.0

Beans (green)

20 / 30 / 30 / 10

Feb/Mar

California

Beans (green)

0.5 / 1.05 / 0.9

5.1

Beans (green)

20 / 30 / 30 / 10

Feb/Mar

Medit.

Beans (green)

0.5 / 1.05 / 0.9

5.2

Beans (green)

15 / 25 / 25 / 10

Aug/Sep

California

Beans (green)

0.5 / 1.05 / 0.9

5.3

Beans (green)

15 / 25 / 25 / 10

Aug/Sep

Egypt

Beans (green)

0.5 / 1.05 / 0.9

5.4

Beans (green)

15 / 25 / 25 / 10

Aug/Sep

Lebanon

Beans (green)

0.5 / 1.05 / 0.9

5.5

Beans (dry)

20 / 30 / 40 / 20

May/Jun

Continental Region

Beans (dry)

0.4 / 1.15 / 0.35

5.6

Beans (dry)

15 / 25 / 35 / 20

Jun

California

Beans (dry)

0.4 / 1.15 / 0.35

5.7

Beans (dry)

15 / 25 / 35 / 20

Jun

Pakistan

Beans (dry)

0.4 / 1.15 / 0.35

5.8

Beans (dry)

25 / 25 / 30 / 20

Jun

Idaho

Beans (dry)

0.4 / 1.15 / 0.35

5.9

Cowpea

20 / 30 / 30 / 20

Mar

Medit.

Cowpea (fresh)

0.4 / 1.05 / 0.6

5.10

Cowpea

20 / 30 / 30 / 20

Mar

Medit.

Cowpea (dry)

0.4 / 1.05 / 0.35

5.11

Fababean (dry)

90 / 45 / 40 / 60

Nov

Europe

Fababean (dry)

0.5 / 1.15 / 0.3

5.12

Fababean (green)

15 / 25 / 35 / 15

May

Europe

Fababean (fresh)

0.5 / 1.15 / 1.1

5.13

Fababean (green)

20 / 30 / 35 / 15

Mar/Apr

Medit.

Fababean (fresh)

0.5 / 1.15 / 1.1

5.14

Fababean (green)

90 / 45 / 40 / 0

Nov

Europe

Fababean (fresh)

0.5 / 1.15 / 1.1

5.15

Green gram

20 / 30 / 30 / 20

Mar

Medit.

Green gram (fresh)

0.4 / 1.05 / 0.6

5.16

Green gram

20 / 30 / 30 / 20

Mar

Medit.

Green gram (dry)

0.4 / 1.05 / 0.35

5.17

Groundnut

25 / 35 / 45 / 25

Dry Season

West Africa

Groundnut

0.4 / 1.15 / 0.6

5.18

Groundnut

35 / 35 / 35 / 35

May

High Latitudes

Groundnut

0.4 / 1.15 / 0.6

5.19

Groundnut

35 / 45 / 35 / 25

May/Jun

Medit.

Groundnut

0.4 / 1.15 / 0.6

5.20

Lentil

20 / 30 / 60 / 40

Apr

Europe

Lentil

0.4 / 1.1 / 0.3

5.21

Lentil

25 / 35 / 70 / 40

Oct/Nov

Arid Region

Lentil

0.4 / 1.1 / 0.3

5.22

Pea

15 / 25 / 35 / 15

May

Europe

Pea (fresh)

0.5 / 1.15 / 1.1

5.23

Pea

20 / 30 / 35 / 15

Mar/Apr

Medit.

Pea (fresh)

0.5 / 1.15 / 1.1

5.24

Pea

35 / 25 / 30 / 20

Apr

Idaho

Pea (fresh)

0.5 / 1.15 / 1.1

5.25

Pea

15 / 25 / 35 / 15

May

Europe

Pea (dry)

0.5 / 1.15 / 0.3

5.26

Pea

20 / 30 / 35 / 15

Mar/Apr

Medit.

Pea (dry)

0.5 / 1.15 / 0.3

5.27

Pea

35 / 25 / 30 / 20

Apr

Idaho

Pea (dry)

0.5 / 1.15 / 0.3

5.28

Soybean

15 / 15 / 40 / 15

Dec

Tropics

Soybean

0.4 / 1.15 / 0.5

5.29

Soybean

20 / 35 / 60 / 25

May

Central USA

Soybean

0.4 / 1.15 / 0.5

5.30

Soybean

20 / 25 / 75 / 30

Jun

Japan

Soybean

0.4 / 1.15 / 0.5

6.0

Artichoke

40 / 40 / 250 / 30

Apr (1st yr)

California

Artichoke

0.5 / 1 / 0.95

6.1

Artichoke

20 / 25 / 250 / 30

May (2nd yr)

California

Artichoke

0.5 / 1 / 0.95

6.2

Asparagus

50 / 30 / 100 / 50

Feb

Warm Winter

Asparagus

0.5 / 0.95 / 0.3

6.3

Asparagus

90 / 30 / 200 / 45

Feb

Medit.

Asparagus

0.5 / 0.95 / 0.3

7.0

Cotton

30 / 50 / 60 / 55

Mar/Apr/May

Egypt

Cotton

0.35 / 1.175 / 0.6

7.1

Cotton

30 / 50 / 60 / 55

Mar/Apr/May

Pakistan

Cotton

0.35 / 1.175 / 0.6

7.2

Cotton

30 / 50 / 60 / 55

Mar/Apr/May

California

Cotton

0.35 / 1.175 / 0.6

7.3

Cotton

45 / 90 / 45 / 45

Mar

Calif. Desert

Cotton

0.35 / 1.175 / 0.6

7.4

Cotton

30 / 50 / 60 / 55

Sep

Yemen

Cotton

0.35 / 1.175 / 0.6

7.5

Cotton

30 / 50 / 55 / 45

Apr

Texas

Cotton

0.35 / 1.175 / 0.6

7.6

Flax

25 / 35 / 50 / 40

Apr

Europe

Flax

0.35 / 1.1 / 0.25

7.7

Flax

30 / 40 / 100 / 50

Oct

Arizona

Flax

0.35 / 1.1 / 0.25

8.0

Castorbean

25 / 40 / 65 / 50

Mar

Semi-Arid Region

Castorbean

0.35 / 1.15 / 0.55

8.1

Castorbean

20 / 40 / 50 / 25

Nov

Indonesia

Castorbean

0.35 / 1.15 / 0.55

8.2

Crucifers

20 / 30 / 20 / 10

Apr

Medit.

Rapeseed/Canola

0.35 / 1.15 / 0.35

8.3

Crucifers

25 / 35 / 25 / 10

Feb

Medit.

Rapeseed/Canola

0.35 / 1.15 / 0.35

8.4

Crucifers

30 / 35 / 90 / 40

Oct/Nov

Medit.

Rapeseed/Canola

0.35 / 1.15 / 0.35

8.5

Safflower

20 / 35 / 45 / 25

Apr

California

Safflower

0.35 / 1.15 / 0.25

8.6

Safflower

25 / 35 / 55 / 30

Mar

High Latitudes

Safflower

0.35 / 1.15 / 0.25

8.7

Safflower

35 / 55 / 60 / 40

Oct/Nov

Arid Region

Safflower

0.35 / 1.15 / 0.25

8.8

Sesame

20 / 30 / 40 / 20

Jun

China

Sesame

0.35 / 1.1 / 0.25

8.9

Sunflower

25 / 35 / 45 / 25

Apr/May

Medit.

Sunflower

0.35 / 1.15 / 0.35

8.10

Sunflower

25 / 35 / 45 / 25

Apr/May

California

Sunflower

0.35 / 1.15 / 0.35

9.0

Barley

15 / 25 / 50 / 30

Nov

Central India

Barley

0.3 / 1.15 / 0.25

9.1

Barley

20 / 25 / 60 / 30

Mar/Apr

35-45 °L

Barley

0.3 / 1.15 / 0.25

9.2

Barley

15 / 30 / 65 / 40

Jul

East Africa

Barley

0.3 / 1.15 / 0.25

9.3

Barley

40 / 30 / 40 / 20

Apr

East Africa

Barley

0.3 / 1.15 / 0.25

9.4

Barley

40 / 60 / 60 / 40

Nov

East Africa

Barley

0.3 / 1.15 / 0.25

9.5

Barley

20 / 50 / 60 / 30

Dec

Calif. Desert

Barley

0.3 / 1.15 / 0.25

9.6

Oats

15 / 25 / 50 / 30

Nov

Central India

Oats

0.3 / 1.15 / 0.25

9.7

Oats

20 / 25 / 60 / 30

Mar/Apr

35-45 °L

Oats

0.3 / 1.15 / 0.25

9.8

Oats

15 / 30 / 65 / 40

Jul

East Africa

Oats

0.3 / 1.15 / 0.25

9.9

Oats

40 / 30 / 40 / 20

Apr

East Africa

Oats

0.3 / 1.15 / 0.25

9.10

Oats

40 / 60 / 60 / 40

Nov

East Africa

Oats

0.3 / 1.15 / 0.25

9.11

Oats

20 / 50 / 60 / 30

Dec

Calif. Desert

Oats

0.3 / 1.15 / 0.25

9.12

Wheat

15 / 25 / 50 / 30

Nov

Central India

Spring wheat

0.3 / 1.15 / 0.25

9.13

Wheat

20 / 25 / 60 / 30

Mar/Apr

35-45 °L

Spring wheat

0.3 / 1.15 / 0.25

9.14

Wheat

15 / 30 / 65 / 40

Jul

East Africa

Spring wheat

0.3 / 1.15 / 0.25

9.15

Wheat

40 / 30 / 40 / 20

Apr

East Africa

Spring wheat

0.3 / 1.15 / 0.25

9.16

Wheat

40 / 60 / 60 / 40

Nov

East Africa

Spring wheat

0.3 / 1.15 / 0.25

9.17

Wheat

20 / 50 / 60 / 30

Dec

Calif. Desert

Spring wheat

0.3 / 1.15 / 0.25

9.18

Winter wheat

20 / 60 / 70 / 30

Dec

California

Winter wheat (frozen soils)

0.4 / 1.15 / 0.25

9.19

Winter wheat

30 / 140 / 40 / 30

Nov

Medit.

Winter wheat (frozen soils)

0.4 / 1.15 / 0.25

9.20

Winter wheat

160 / 75 / 75 / 25

Oct

Idaho

Winter wheat (frozen soils)

0.4 / 1.15 / 0.25

9.21

Winter wheat

20 / 60 / 70 / 30

Dec

California

Winter wheat (non-frozen soils)

0.7 / 1.15 / 0.25

9.22

Winter wheat

30 / 140 / 40 / 30

Nov

Medit.

Winter wheat (non-frozen soils)

0.7 / 1.15 / 0.25

9.23

Winter wheat

160 / 75 / 75 / 25

Oct

Idaho

Winter wheat (non-frozen soils)

0.7 / 1.15 / 0.25

9.24

Maize (grain)

30 / 50 / 60 / 40

Apr

East Africa

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.25

Maize (grain)

25 / 40 / 45 / 30

Dec/Jan

Arid Region

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.26

Maize (grain)

20 / 35 / 40 / 30

Jun

Nigeria

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.27

Maize (grain)

20 / 35 / 40 / 30

Oct

India

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.28

Maize (grain)

30 / 40 / 50 / 30

Apr

Spain

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.29

Maize (grain)

30 / 40 / 50 / 30

Apr

California

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.30

Maize (grain)

30 / 40 / 50 / 50

Apr

Idaho

Maize (grain; high harvest moisture)

0.3 / 1.2 / 0.6

9.31

Maize (grain)

30 / 50 / 60 / 40

Apr

East Africa

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.32

Maize (grain)

25 / 40 / 45 / 30

Dec/Jan

Arid Region

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.33

Maize (grain)

20 / 35 / 40 / 30

Jun

Nigeria

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.34

Maize (grain)

20 / 35 / 40 / 30

Oct

India

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.35

Maize (grain)

30 / 40 / 50 / 30

Apr

Spain

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.36

Maize (grain)

30 / 40 / 50 / 30

Apr

California

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.37

Maize (grain)

30 / 40 / 50 / 50

Apr

Idaho

Maize (grain; low harvest moisture)

0.3 / 1.2 / 0.35

9.38

Maize (sweet)

20 / 20 / 30 / 10

Mar

Philippines

Maize (sweet)

0.3 / 1.15 / 1.05

9.39

Maize (sweet)

20 / 25 / 25 / 10

May/Jun

Medit.

Maize (sweet)

0.3 / 1.15 / 1.05

9.40

Maize (sweet)

20 / 30 / 50 / 10

Oct

Arid Region

Maize (sweet)

0.3 / 1.15 / 1.05

9.41

Maize (sweet)

20 / 30 / 30 / 10

Dec

Arid Region

Maize (sweet)

0.3 / 1.15 / 1.05

9.42

Maize (sweet)

30 / 30 / 30 / 10

Apr

Idaho

Maize (sweet)

0.3 / 1.15 / 1.05

9.43

Maize (sweet)

20 / 40 / 70 / 10

Jan

Calif. Desert

Maize (sweet)

0.3 / 1.15 / 1.05

9.44

Millet

15 / 25 / 40 / 25

Jun

Pakistan

Millet

0.3 / 1 / 0.3

9.45

Millet

20 / 30 / 55 / 35

Apr

Central USA

Millet

0.3 / 1 / 0.3

9.46

Sorghum

20 / 35 / 40 / 30

May/Jun

USA

Sorghum (grain)

0.3 / 1.05 / 0.55

9.47

Sorghum

20 / 35 / 40 / 30

May/Jun

Pakistan

Sorghum (grain)

0.3 / 1.05 / 0.55

9.48

Sorghum

20 / 35 / 40 / 30

May/Jun

Medit.

Sorghum (grain)

0.3 / 1.05 / 0.55

9.49

Sorghum

20 / 35 / 45 / 30

Mar/Apr

Arid Region

Sorghum (grain)

0.3 / 1.05 / 0.55

9.50

Sorghum

20 / 35 / 40 / 30

May/Jun

USA

Sorghum (sweet)

0.3 / 1.2 / 1.05

9.51

Sorghum

20 / 35 / 40 / 30

May/Jun

Pakistan

Sorghum (sweet)

0.3 / 1.2 / 1.05

9.52

Sorghum

20 / 35 / 40 / 30

May/Jun

Medit.

Sorghum (sweet)

0.3 / 1.2 / 1.05

9.53

Sorghum

20 / 35 / 45 / 30

Mar/Apr

Arid Region

Sorghum (sweet)

0.3 / 1.2 / 1.05

9.54

Rice

30 / 30 / 60 / 30

Dec

Tropics

Rice

1.05 / 1.2 / 0.75

9.55

Rice

30 / 30 / 60 / 30

May

Medit.

Rice

1.05 / 1.2 / 0.75

9.56

Rice

30 / 30 / 80 / 40

May

Tropics

Rice

1.05 / 1.2 / 0.75

10.0

Alfalfa (total season)

10 / 30 / - / -

-

last -4°C in spring until first -4°C in fall

Alfalfa (averaged cutting effects)

0.4 / 0.95 / 0.9

10.1

Alfalfa (total season)

10 / 30 / - / -

-

last -4°C in spring until first -4°C in fall

Alfalfa (individual cutting periods)

0.4 / 1.2 / 1.15

10.2

Alfalfa (total season)

10 / 30 / - / -

-

last -4°C in spring until first -4°C in fall

Alfalfa (for seed)

0.4 / 0.5 / 0.5

10.3

Alfalfa (1st cutting cycle)

10 / 20 / 20 / 10

Jan

California

Alfalfa (averaged cutting effects)

0.4 / 0.95 / 0.9

10.4

Alfalfa (1st cutting cycle)

10 / 30 / 25 / 10

Apr (last -4°C)

Idaho

Alfalfa (averaged cutting effects)

0.4 / 0.95 / 0.9

10.5

Alfalfa (1st cutting cycle)

10 / 20 / 20 / 10

Jan

California

Alfalfa (individual cutting periods)

0.4 / 1.2 / 1.15

10.6

Alfalfa (1st cutting cycle)

10 / 30 / 25 / 10

Apr (last -4°C)

Idaho

Alfalfa (individual cutting periods)

0.4 / 1.2 / 1.15

10.7

Alfalfa (1st cutting cycle)

10 / 20 / 20 / 10

Jan

California

Alfalfa (for seed)

0.4 / 0.5 / 0.5

10.8

Alfalfa (1st cutting cycle)

10 / 30 / 25 / 10

Apr (last -4°C)

Idaho

Alfalfa (for seed)

0.4 / 0.5 / 0.5

10.9

Alfalfa (other cutting cycles)

5 / 10 / 10 / 5

Mar

California

Alfalfa (averaged cutting effects)

0.4 / 0.95 / 0.9

10.10

Alfalfa (other cutting cycles)

5 / 20 / 10 / 10

Jun

Idaho

Alfalfa (averaged cutting effects)

0.4 / 0.95 / 0.9

10.11

Alfalfa (other cutting cycles)

5 / 10 / 10 / 5

Mar

California

Alfalfa (individual cutting periods)

0.4 / 1.2 / 1.15

10.12

Alfalfa (other cutting cycles)

5 / 20 / 10 / 10

Jun

Idaho

Alfalfa (individual cutting periods)

0.4 / 1.2 / 1.15

10.13

Alfalfa (other cutting cycles)

5 / 10 / 10 / 5

Mar

California

Alfalfa (for seed)

0.4 / 0.5 / 0.5

10.14

Alfalfa (other cutting cycles)

5 / 20 / 10 / 10

Jun

Idaho

Alfalfa (for seed)

0.4 / 0.5 / 0.5

10.15

Bermuda (for hay; several cuttings)

10 / 15 / 75 / 35

-

Calif. Desert

Bermuda (averaged cutting effects)

0.55 / 1 / 0.85

10.16

Bermuda (for seed)

10 / 25 / 35 / 35

Mar

Calif. Desert

Bermuda (spring crop for seed)

0.35 / 0.9 / 0.65

10.17

Grass pasture

10 / 20 / - / -

-

7 days before last -4°C in spring until 7 days after first -4°C in fall

Grazing pasture (rotated grazing)

0.4 / 0.95 / 0.85

10.18

Grass pasture

10 / 20 / - / -

-

7 days before last -4°C in spring until 7 days after first -4°C in fall

Grazing pasture (extensive grazing)

0.3 / 0.75 / 0.75

10.19

Sudan (1st cutting cycle)

25 / 25 / 15 / 10

Apr

Calif. Desert

Sudan grass (averaged cutting effects)

0.5 / 0.9 / 0.85

10.20

Sudan (1st cutting cycle)

25 / 25 / 15 / 10

Apr

Calif. Desert

Sudan grass (individual cutting periods)

0.5 / 1.15 / 1.1

10.21

Sudan (other cutting cycles)

3 / 15 / 12 / 7

Jun

Calif. Desert

Sudan grass (averaged cutting effects)

0.5 / 0.9 / 0.85

10.22

Sudan (other cutting cycles)

3 / 15 / 12 / 7

Jun

Calif. Desert

Sudan grass (individual cutting periods)

0.5 / 1.15 / 1.1

11.0

Sugarcane (virgin)

35 / 60 / 190 / 120

-

Low Latitudes

Sugarcane

0.4 / 1.25 / 0.75

11.1

Sugarcane (virgin)

50 / 70 / 220 / 140

-

Tropics

Sugarcane

0.4 / 1.25 / 0.75

11.2

Sugarcane (virgin)

75 / 105 / 330 / 210

-

Hawaii

Sugarcane

0.4 / 1.25 / 0.75

11.3

Sugarcane (ratoon)

25 / 70 / 135 / 50

-

Low Latitudes

Sugarcane

0.4 / 1.25 / 0.75

11.4

Sugarcane (ratoon)

30 / 50 / 180 / 60

-

Tropics

Sugarcane

0.4 / 1.25 / 0.75

11.5

Sugarcane (ratoon)

35 / 105 / 210 / 70

-

Hawaii

Sugarcane

0.4 / 1.25 / 0.75

12.0

Banana (1st year)

120 / 90 / 120 / 60

Mar

Medit.

Banana (1st year)

0.5 / 1.1 / 1

12.1

Banana (2nd year)

120 / 60 / 180 / 5

Feb

Medit.

Banana (2nd year)

1 / 1.2 / 1.1

12.2

Pineapple

60 / 120 / 600 / 10

-

Hawaii

Pineapple (bare soil)

0.5 / 0.3 / 0.3

12.3

Pineapple

60 / 120 / 600 / 10

-

Hawaii

Pineapple (with grass cover)

0.5 / 0.5 / 0.5

13.0

Grapes

20 / 40 / 120 / 60

Apr

Low Latitudes

Grapes (table or raisin)

0.3 / 0.85 / 0.45

13.1

Grapes

20 / 50 / 75 / 60

Mar

California

Grapes (table or raisin)

0.3 / 0.85 / 0.45

13.2

Grapes

20 / 50 / 90 / 20

May

High Latitudes

Grapes (table or raisin)

0.3 / 0.85 / 0.45

13.3

Grapes

30 / 60 / 40 / 80

Apr

Mid Latitudes

Grapes (table or raisin)

0.3 / 0.85 / 0.45

13.4

Grapes

20 / 40 / 120 / 60

Apr

Low Latitudes

Grapes (wine)

0.3 / 0.7 / 0.45

13.5

Grapes

20 / 50 / 75 / 60

Mar

California

Grapes (wine)

0.3 / 0.7 / 0.45

13.6

Grapes

20 / 50 / 90 / 20

May

High Latitudes

Grapes (wine)

0.3 / 0.7 / 0.45

13.7

Grapes

30 / 60 / 40 / 80

Apr

Mid Latitudes

Grapes (wine)

0.3 / 0.7 / 0.45

13.8

Hops

25 / 40 / 80 / 10

Apr

Idaho

Hops

0.3 / 1.05 / 0.85

14.0

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Almonds (no ground cover)

0.4 / 0.9 / 0.65

14.1

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Almonds (no ground cover)

0.4 / 0.9 / 0.65

14.2

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Almonds (no ground cover)

0.4 / 0.9 / 0.65

14.3

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apple (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.4

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apple (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.5

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apple (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.6

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apple (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.7

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apple (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.8

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apple (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.9

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apple (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.10

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apple (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.11

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apple (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.12

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apple (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.13

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apple (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.14

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apple (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.15

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Cherry (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.16

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Cherry (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.17

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Cherry (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.18

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Cherry (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.19

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Cherry (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.20

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Cherry (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.21

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Cherry (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.22

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Cherry (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.23

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Cherry (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.24

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Cherry (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.25

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Cherry (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.26

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Cherry (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.27

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Pear (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.28

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Pear (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.29

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Pear (no ground cover; killing frost)

0.45 / 0.95 / 0.7

14.30

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Pear (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.31

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Pear (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.32

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Pear (no ground cover; no frost)

0.6 / 0.95 / 0.75

14.33

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Pear (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.34

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Pear (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.35

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Pear (active ground cover; killing frost)

0.5 / 1.2 / 0.95

14.36

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Pear (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.37

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Pear (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.38

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Pear (active ground cover; no frost)

0.8 / 1.2 / 0.85

14.39

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apricot (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.40

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apricot (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.41

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apricot (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.42

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apricot (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.43

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apricot (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.44

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apricot (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.45

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apricot (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.46

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apricot (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.47

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apricot (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.48

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Apricot (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.49

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Apricot (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.50

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Apricot (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.51

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Peach (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.52

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Peach (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.53

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Peach (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.54

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Peach (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.55

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Peach (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.56

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Peach (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.57

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Peach (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.58

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Peach (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.59

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Peach (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.60

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Peach (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.61

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Peach (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.62

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Peach (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.63

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Stone Fruit (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.64

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Stone Fruit (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.65

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Stone Fruit (no ground cover; killing frost)

0.45 / 0.9 / 0.65

14.66

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Stone Fruit (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.67

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Stone Fruit (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.68

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Stone Fruit (no ground cover; no frost)

0.55 / 0.9 / 0.65

14.69

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Stone Fruit (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.70

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Stone Fruit (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.71

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Stone Fruit (active ground cover; killing frost)

0.5 / 1.15 / 0.9

14.72

Deciduous orchard

20 / 70 / 90 / 30

Mar

High Latitudes

Stone Fruit (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.73

Deciduous orchard

20 / 70 / 120 / 60

Mar

Low Latitudes

Stone Fruit (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.74

Deciduous orchard

30 / 50 / 130 / 30

Mar

California

Stone Fruit (active ground cover; no frost)

0.8 / 1.15 / 0.85

14.75

Citrus

60 / 90 / 120 / 95

Jan

Medit.

Citrus (no ground cover; 70% canopy)

0.7 / 0.65 / 0.7

14.76

Citrus

60 / 90 / 120 / 95

Jan

Medit.

Citrus (no ground cover; 50% canopy)

0.65 / 0.6 / 0.65

14.77

Citrus

60 / 90 / 120 / 95

Jan

Medit.

Citrus (no ground cover; 20% canopy)

0.5 / 0.45 / 0.55

14.78

Citrus

60 / 90 / 120 / 95

Jan

Medit.

Citrus (active ground cover; 70% canopy)

0.75 / 0.7 / 0.75

14.79

Citrus

60 / 90 / 120 / 95

Jan

Medit.

Citrus (active ground cover; 50% canopy)

0.8 / 0.8 / 0.8

14.80

Citrus

60 / 90 / 120 / 95

Jan

Medit.

Citrus (active ground cover; 20% canopy)

0.85 / 0.85 / 0.85

14.81

Olives

30 / 90 / 60 / 90

Mar

Medit.

Olives (40 to 60% ground coverage by canopy)

0.65 / 0.7 / 0.7

14.82

Pistachios

20 / 60 / 30 / 40

Feb

Medit.

Pistachios (no ground cover)

0.4 / 1.1 / 0.45

14.83

Walnuts

20 / 10 / 130 / 30

Apr

Utah

Walnut orchard

0.5 / 1.1 / 0.65

15.0

Wetlands (cattails; bulrush)

10 / 30 / 80 / 20

May

Utah

Cattails (killing frost)

0.3 / 1.2 / 0.3

15.1

Wetlands (cattails; bulrush)

180 / 60 / 90 / 35

Nov

Florida

Cattails (no frost)

0.6 / 1.2 / 0.6

15.2

Wetlands (cattails; bulrush)

10 / 30 / 80 / 20

May

Utah

Bulrush (killing frost)

0.3 / 1.2 / 0.3

15.3

Wetlands (cattails; bulrush)

180 / 60 / 90 / 35

Nov

Florida

Bulrush (no frost)

0.6 / 1.2 / 0.6

15.4

Wetlands (short vegetation)

180 / 60 / 90 / 35

Nov

Frost-free Climate

Short vegetation (no frost)

1.05 / 1.1 / 1.1

Changelog

This section describes document changes occurring in the two most recent versions.