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Soil Science Society of America Journal Abstract -

Sulfur Uptake by Corn as Influenced by Ammonium and Nitrate Nitrogen1

 

This article in SSSAJ

  1. Vol. 34 No. 2, p. 327-329
     
    Received: July 29, 1969
    Accepted: Sept 11, 1969


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doi:10.2136/sssaj1970.03615995003400020040x
  1. G. W. Rehm and
  2. A. C. Caldwell2

Abstract

Abstract

The effect of NH4 and NO3 ions on S uptake by corn (Zea mays L.) from a starter fertilizer was studied with the use of 15N and 35S. When both the N and S were applied as a starter, the uptake of fertilizer S was significantly increased when NH4 instead of NO3 was used as the N source. This effect was observed in young plants through 4 weeks of age. More N was absorbed by the corn plant when NH4 rather than NO3 was supplied as the N source. The N source, however, had no significant effect on the total S, SO4-S or total N content of the tissue and the corn yield.

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