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Agronomy Journal Abstract -

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


This article in AJ

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

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  1. Allen V. Barker and
  2. Richard Bradfield2



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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