Abstract
A long-term experiment was established at the ISU Northern Research Farm, Kanawha, Iowa, in 1998 to study phosphorus (P) fertilization of alfalfa. Alfalfa has higher P demand than corn or soybean, and soil-test P interpretations and P fertilization guidelines in Iowa State University extension publication PM-1688 (A General Guide for Crop Nutrient and Limestone Recommendations in Iowa) are based on research more than 30 years old.
Keywords: Agronomy
How to Cite:
Mallarino, A. P. & Rueber, D., (2013) “Alfalfa Hay and Soil-Test Phosphorus Responses to Long-term Phosphorus Fertilization Strategies”, Iowa State University Research and Demonstration Farms Progress Reports 2012(1).
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