Fertilizer Application Tools

WSU Dryland Wheat Nitrogen Fertilizer Calculator

For more information WSU EB1987E

* denotes required input fields

Grower:			Rainfall Zone:	Select type of rainfall zone Less than 12 inches 12 - 16 inches 17 - 20 inches Greater than 20 inches		Assisted by:
Tract:			Crop: *	Select type of crop DNS wheat Hard red winter wheat Hard white spring wheat Hard white winter wheat Soft white spring wheat Soft white winter wheat		Field Description:
Date:			Soil type:			Field size:	acres

Input the following to calculate the recommended nitrogen: Soil test result unit: lbs/acre ppm Estimate average yield:  bu/ac Soil moisture:  inches Expected rainfall:  inches Cropping system: * Select a cropping system Conventional tillage system, annual cropping Reduced tillage system, annual cropping Summer fallow systems Previous crop: * Select previous crop No previous crop (fallow) Alfalfa hay Peas, < 2000 lb/ac yield Peas, > 2000 lb/ac yield Preceding crop was wheat, <20 bu/acre yield Preceding crop was wheat, >100 bu/acre yield Preceding crop was wheat, 20-40 bu/acre yield Preceding crop was wheat, 40-60 bu/acre yield Preceding crop was wheat, 60-80 bu/acre yield Preceding crop was wheat, 80-100 bu/acre yield Soil Organic matter percent *  % Ammonium-nitrogen soil test value (lb/acre) *  lb/acre Nitrate-nitrogen soil test value (lb/acre) *  lb/acre