Abstract
Irrespective of cropping and N-fertilization, the amount of available N significantly decreased and fixed NH +4 -N increased with increase in the period of investigation. A substantial decrease in the amount of total hydrolysable N due to cropping was noted and the amount of decrease was less in the N-fertilized than the unfertilized soil. N-fertilization resulted in an increase in dry matter yield and N-uptake by the crop.
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Pal, S.K., Saha, D. & Mukhopadhyay, A.K. Influence of cropping and N-fertilization on changes in different forms of nitrogen in an alluvial soil. Plant Soil 101, 137–139 (1987). https://doi.org/10.1007/BF02371042
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DOI: https://doi.org/10.1007/BF02371042