Farm

Northern Research and Demonstration Farm

Extension Number

RFR-A12104

Publication Date

2013

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.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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