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Abstract

 

This article in AJ

  1. Vol. 55 No. 5, p. 465-470
     
    Received: Jan 29, 1963


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doi:10.2134/agronj1963.00021962005500050017x

Effect of Potassium and Nitrogen on the Free Amino Acid Content of Corn Plants1

  1. Allen V. Barker and
  2. Richard Bradfield2

Synopsis

Synopsis

Growth was limited by deficient and excessive quantities of both N and K. Nitrogen deficiencies and excesses gave the greatest reductions in yields. Generally, growth was greater when a large proportion of the N was supplied as NH4+. Asparagine was the predominant amino acid in the plants. The content of asparagine and other free amino acids was increased by higher levels of N nutrition and higher proportions of NH4+-N within any given N level. It was decreased by higher levels of K.

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