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https://agriculture.alberta.ca/acis/imcin/irricast.jsp

Alberta Irrigation Management Model: Key outputs from AIM:

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Crop coefficients: To convert the reference evapotranspiration to actual crop evapotranspiration, a crop coefficient and a stress coefficient must be used. Crop coefficients as used in many hydrological models usually change along the year to accommodate to the fact that crops are seasonal and, in general, plants behave differently along the seasons: perennial plants mature over multiple seasons, and stress responses can significantly depend upon many aspects of plant condition.

SWAT Maps

The combination of Soil, Water, And Topography variability within a field to guide irrigation decisions.

https://www.swatmaps.com/swat-water

Attributes of …

• Soil

  • Soil type

  • Soil texture

  • Field capacity

  • Available water (AKA Plant available water AKA “PAW”, AKA available water holding capacity or “awhc”): For peas, should be > 0.6

  • Maximum allowable depletion

  • (Permanent) Wilting point

• Crops

  • Crop coefficient

  • Daily water use

  • Crop stage

• Field

  • Lat / long

  • Elevation

Image Added

Permanent wilting point: 0.1442

Field capacity:

Growth stages

Support for project

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