Wageningen University-Phd Thesis-Fertilizer Nitrogen Use Efficiency by Maize-D.O. Sigunga 1997

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1997
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Dalmas O. Singunga
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The general objectives of this study were to increase the understanding of nitrogen (N) losses in maize cropping on Vertisols, and to develop management options to reduce such losses and to improve fertilizer N use efficiency. The specific objectives were to quantify the effects of fertilizer N sources and management practices on (i) fertilizer N losses through denitrification, NH3 volatilization and bypass flow, (ii) fertilizer N use efficiency by maize, considering agronomic, recovery, and physiological N efficiencies, and (iii) the uptake of nutrients other than N.
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