Crop and Soil Sciences

Fertilizer Application Tools

WSU Dryland Wheat Nitrogen Fertilizer Calculator

For more information WSU EB1987E

* denotes required input fields
Grower: Rainfall Zone: Assisted by:
Tract: Crop: * Field Description:
Date: Soil type: Field size: acres

Input the following to calculate the recommended nitrogen:
Soil test result unit:
Estimate average yield:  bu/ac
Soil moisture:  inches
Expected rainfall:  inches
Cropping system: *
Previous crop: *
Soil Organic matter percent *  %
Ammonium-nitrogen soil test value (lb/acre) *  lb/acre
Nitrate-nitrogen soil test value (lb/acre) *  lb/acre