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This article in JEQ

  1. Vol. 5 No. 3, p. 255-259
     
    Received: Sept 19, 1976
    Published: July, 1976


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doi:10.2134/jeq1976.00472425000500030008x

Influence of Crop Management Practices on Nutrient Movement Below the Root Zone in Nebraska Soils1

  1. John Muir,
  2. J. S. Boyce,
  3. E. C. Seim,
  4. P. N. Mosher,
  5. E. J. Deibert and
  6. R. A. Olson2

Abstract

Abstract

Deep profile sampling under different water and crop management systems revealed limited movement of N and none of P from the rooting profile of nonirrigated Nebraska soils. Leaching of N to the water table was apparent in most irrigated soils located on valley positions and in sandy soils of the uplands. Alfalfa (Medicago sativa L.), with its deep rooting system, was noted to be an effective scavenger of inorganic N that may have accumulated under prior annual crops.

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