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Influence of Crop Management Practices on Nutrient Movement Below the Root Zone in Nebraska Soils
Author(s) -
Muir John,
Boyce J. S.,
Seim E. C.,
Mosher P. N.,
Deibert E. J.,
Olson R. A.
Publication year - 1976
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1976.00472425000500030008x
Subject(s) - soil water , agronomy , environmental science , leaching (pedology) , nutrient , medicago sativa , water table , crop , dns root zone , infiltration (hvac) , hydrology (agriculture) , groundwater , soil science , geology , biology , geography , ecology , meteorology , geotechnical engineering
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.