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Abstract

 

This article in AJ

  1. Vol. 57 No. 3, p. 261-266
     
    Received: Sept 1, 1964


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doi:10.2134/agronj1965.00021962005700030011x

Effect of Nitrogen and Potassium on the Yield and Chemical Composition of Alfalfa, Bromegrass, Orchardgrass, and Timothy Grown as Pure Species1

  1. L. B. MacLeod2

Synopsis

Synopsis

Yield response to additional K for grass increased up to a tissue content of 2% and levelled off between 2 and 3%. Percent protein, nonprotein and nitrate N in the forage increased with N fertilization but decreased with K fertilization. Significant interaction effects showed that adequate K (50 pounds/acre) insured a balanced N metabolism in forages heavily fertilized (100 to 200 pounds/acre) with N.

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