Bioavailability of soil nitrogen in low water input rice production

Jahan, Md Sarwar and Khanif, Y. M. and Uma Rani , Uma Rani and Nordin, M. N B and Che Lah, Mohd Khairi (2012) Bioavailability of soil nitrogen in low water input rice production. Journal of Sustainability Science and Management, 7 (2). pp. 207-212. ISSN 18238556

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Abstract

The water demand for agriculture, municipal, industrial, and environmental purposes will be increased in the future; less water will be available for rice production. This study was conducted to determine the effects of low water irrigation on rice yield and nitrogen (N) bioavailability in soil. Five different irrigation treatments, namely, W1 (5 cm flooding), W2 (1 cm flooding), W3 (first 3 weeks 5 cm then 1 cm flooding), W4 (first 6 weeks 5 cm then 1 cm flooding), and W5 (first 9 weeks 5 cm then 1 cm flooding) were employed with five replications. SPS200 water sampler was used to collect soil extracts and measured N bioavailability in soil. Low water irrigation did not affect rice yield, yield parameters and N content in soil compared to the traditional irrigation system. Our results suggest that rice production can be implemented under low water irrigation condition without affecting rice yield, yield parameters and N content.

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
Faculty / Institute: Faculty of Bioresources & Food Industry
Depositing User: Dr. Md Sarwar Jahan
Date Deposited: 14 Jan 2015 05:12
Last Modified: 14 Jan 2015 05:12
URI: http://erep.unisza.edu.my/id/eprint/1654

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