Rainfed rice - IRRI books - International Rice Research Institute

Moisture Availability,
Water Balance and
Crop Planning
R
ainfall is a crucial resource for crop production in rainfed areas. Its
amount, distribution pattern and intensity of occurrence vary
tremendously across locations and over time. Therefore, an in-depth
analysis is necessary to use this resource productively.
The long-term rainfall and potential evapotranspiration
(PET) analysis
To analyse the long-term rainfall and potential evapotranspiration, the
following activities were done:
Data from different stations in the area of consideration, e.g., eastern
India, are collected. According to its total amount, the area in
consideration is classified into different categories.
Annual rainfall in eastern India
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