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This article in AJ

  1. Vol. 66 No. 3, p. 454-456
    Received: Aug 20, 1973

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Effect of Sulfur Fertilization on the N-S Ratio in Soybean Varieties1

  1. G. Dev and
  2. S. Saggar2



Changes in N-S ratios in 12 varieties of soybean (Glycine max L. Merrill) under varying levels of applied S were studied in a greenhouse experiment. Sulfur application lowered total N-total S ratios and widened protein N-protein S ratios. At the S level, where constancy in total N-total S ratios was obtained, one part of S was required for every 15 parts of N in protein for varieties ‘Hardee,’ ‘Clark,’ ‘Pb. soybean No. 1’; 12 to 14 parts of N for ‘Dare,’ ‘Hampton,’ ‘Hood,’ ‘Semmes,’ ‘Improved Pelican,’ and ‘Bragg;’ and 16 parts of N for ‘Hill,’ ‘Davis,’ and ‘Pickett 71.’

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