Reports by Richard Koenig

	Comparison of Land Grant University Soil Test Recommendations for Nitrogen, Phosphorus, and Potassium.
	Effect of N Fertilizer Source, Rate, Placement and Application Timing on Hard Red Winter Wheat Yield and N-Use Efficiency.
	Fifty Years of Predicting Wheat Nitrogen Requirements Based on Soil Water, Yield, Protein and Nitrogen Efficiencies.
	Improving the Yields of Late-planted Winter Wheat with Seeding Rate and Phosphorus Fertility.
	Soil Acidity and Lime Responses in the Pacific Northwest.