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This article in SSSAJ

  1. Vol. 35 No. 5, p. 848-850
     
    Received: Mar 22, 1971
    Accepted: June 24, 1971


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doi:10.2136/sssaj1971.03615995003500050059x

Effect of Soil Moisture Tension on Nitrate Accumulation in Drummer Silty Clay Loam1

  1. Burns R. Sabey and
  2. D. D. Johnson2

Abstract

Abstract

The relationship between soil moisture tension and nitrate accumulation in a Drummer silty clay loam was found to differ very little from previously studied silt loams. In the silty clay loam the rates of NO3- accumulation were 63, 51, 40, 10, and 14% as great at soil moisture tensions of ⅓, ½, 1, 5, and 15 bar, respectively, as at ½0 and 1/10 bar. The rates of NO3- accumulation in the silt loams were 71, 53, 29, and 13% as great at ⅓, 1, 5, and 15 bar, respectively, as at 1/10 bar soil moisture tension. At all tensions except 15 bar the mean relative rates of NO3-−N accumulation (moisture rate indexes − RM values) are slightly lower for the silty clay loam than for the silt loams.

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