Reseacrch also showed that one of the key measure to get hight yield of rice is to promote root system development though fertilizer application control.
研究还表明：在高温多雨的水田生态系统中，通过人控施肥调节、促进水稻根系发育，是夺取水稻高产措施之一。
The test result showed that developmental root system could improve the physical and chemical nature of soil, increase yield of latter-crop.
结果表明，强大的绿肥根系，能够改善土壤理化性质，提高后作物产量。
Second, yield identification that is including radish yield and effective root rate.
二是以产量和有效根率的产量鉴定。
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