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17年 34季水稻不同轮作方式的长期定位试验 ,研究禾本科、豆科、十字花科绿肥翻压还田对水稻生长发育的影响 ,结果证明 :1.绿肥处理能提高水稻产量。双季稻总产平均为 10 4 2 3.5kg/hm2 ,比双季稻冬闲处理增产 2 383.5kg/hm2 ,增幅 30 .0 %。 2 .油菜处理能促进水稻提早成熟。生育期比双季稻绿肥处理提前 3～ 6d。而且水稻空秕率低 ,早稻比双季稻冬闲处理低 14 .6 %。
Long-term experiment of different rotation patterns of paddy rice in the 17th and 34th seasons was conducted to study the effects of grazing, leguminous and cruciferous green manure on the growth and development of rice. The results showed that: 1. Green manure treatment could increase the yield of rice. The average output of double-crop rice was 10 4 2 3.5kg / hm 2, which was 2 383.5kg / hm 2 more than that of double-cropping rice, an increase of 30.0%. Rapeseed treatment can promote rice to mature earlier. Growth period than double cropping rice manure treatment 3 ~ 6d. Moreover, the rate of empty rice in rice is lower, and that in early rice is 14.6% lower than that of double-crop rice.