
	Pakistan Journal of Biological Sciences
	Year: 2002 \| Volume: 5 \| Issue: 7 \| Page No.: 740-743 DOI: 10.3923/pjbs.2002.740.743

Nitrogen Release from Green Manure of Water Hyacinth in Rice Cropping Systems

Didik Wisnu Widjajanto, Terumasa Honmura and Nobufumi Miyauchi

Abstract: Nitrogen derived from water hyacinth and recovered in rice crops was measured to evaluate the effect of different amounts of added water hyacinth residues into rice cultivation on the performance of rice crop, N derived (N_dev) from residues and N recovery (N_rec) in rice crop. Dry matter production and N yield of rice crop decreased significantly as the amounts of added water hyacinth increased. The N_dev from water hyacinth was significantly increased as amounts of added water hyacinth increased. In contrast, the N_rec in rice crop was significantly decreased as amounts of added water hyacinth increased. In conclusion different quantities of added water hyacinth residues influenced the performance of rice, and the N dynamics of soil-rice systems.

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How to cite this article:

Didik Wisnu Widjajanto, Terumasa Honmura and Nobufumi Miyauchi, 2002. Nitrogen Release from Green Manure of Water Hyacinth in Rice Cropping Systems. Pakistan Journal of Biological Sciences, 5: 740-743.

DOI: 10.3923/pjbs.2002.740.743

URL: https://scialert.net/abstract/?doi=pjbs.2002.740.743

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