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Effect of Potassium and Nitrogen on the Free Amino Acid Content of Corn Plants 1
Author(s) -
Barker Allen V.,
Bradfield Richard
Publication year - 1963
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1963.00021962005500050017x
Subject(s) - nitrogen , asparagine , potassium , amino acid , chemistry , agronomy , food science , biology , biochemistry , organic chemistry
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 NH 4 + . 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 NH 4 + ‐N within any given N level. It was decreased by higher levels of K.