Quantitative difference method for estimation of fertilizer nitrogen balance and uptake by zea mays on an orthic oxisol of North Central Nigeria

  • PI Ezeaku
Keywords: Fertilizer, Soil, Zea mays, Uptake, Nigeria

Abstract

The percentic recovery and balance of fertilizer nitrogen can be determined by different methods. In this study, quantitative difference method in recovery of Nitrogen of above-ground dry matter was applied to investigate the uptake of field applied nitrogen by maize cultivated in an orthic oxisol soil. It was found that the maximum uptake of fertilizer N is about 75 % decreasing at the end of the growing period to about 65%. About 25% of the N remains in the upper part of the profile, while about 10% can not be localized and presumably lost by denitrification.
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print ISSN: 1596-7409