CropWat

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Guidance

Crop evapotranspiration - Guidelines for computing crop water requirements: http://www.fao.org/docrep/X0490E/X0490E00.htm

Inputs Needed
Climatic and crop data (included in program)
Outputs Provided
Reference evapotranspiration
Crop water requirements
Crop irrigation requirements
Developer or Source
Food and Agriculture Organization of the United Nations (FAO)

CROPWAT 8.0 for Windows is a computer program for the calculation of crop water requirements and irrigation requirements based on soil, climate and crop data. In addition, the program allows the development of irrigation schedules for different management conditions and the calculation of scheme water supply for varying crop patterns. CROPWAT 8.0 can also be used to evaluate farmers’ irrigation practices and to estimate crop performance under both rainfed and irrigated conditions.

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