Computation of potential evapotranspiration by the Blaney-Criddle method
January February March April May June July August September October November December
North South
Reference crop Alfalfa Avocado Bananas Beans Cocoa Coffee Cotton Dates Deciduous trees Flax Grains (small) Grapefruit Maize Oil seeds Onions Orange Potatoes Rice Sisal Sorghum Soybeans Sugar beets Sugarcane Sweet potatoes Tobacco Tomatoes Vegetables Vineyards Walnuts