PMID: 15334961Sep 1, 2004Paper

Effect of rice-duck mutualism on nutrition ecology of paddy field and rice quality

Ying yong sheng tai xue bao = The journal of applied ecology
Qiang-sheng WangChunyang Zhang

Abstract

The production of nuisanceless rice was conducted by the technique of rice-duck mutualism without applying any pesticide and chemical fertilizer. The results showed that compared to the control, the effect of eliminating weeds was over 99.4%, and the cardinal numbers of plant diseases and insect pests reduced obviously. Nutrients and dissolved oxygen in paddy water and rapidly available nutrients in soil increased, but after maturing stage, compared to basal fertility, rapidly available P and K decreased. The N, P, and K absorption amounts of rice plant, rice yield, setting panicles rate, filled grains and ripened rate increased. The milling, appearance, nutritional, cooking and eating quality of rice improved, especially in reducing chalkiness. The comprehensive benefits of paddy field enhanced obviously.

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