By Owino-Gerroh C.   Gascho G.   Phatak S.   in Journal of Plant Nutrition

ISSN:0190-4167|28|5|797-804

Taylor & Francis Ltd‎(2005)‎

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By Egelkraut T.M.   Kissel D.E.   Cabrera M.L.   Gascho G.J.   Adkins W.   in Nutrient Cycling in Agroecosystems

ISSN:1385-1314|68|3|235-242

Springer Publishing Company ‎(2004)‎

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