稻草还田能显著提高稻谷产量,但受许多因素的影响。2005年在桃江开展了不同耕作方式和施氮水平条件下,对稻草还田效益影响的比较试验。结果表明,不同耕作方式、不同施氮水平都对稻草还田的效益产生显著影响,尤以机械旋耕方式对早稻产量的影响更为明显,增产率达7.3%。 Rice straw can significantly increase the yield of rice, but it is affected by many factors. 2005 in Taojiang carried out under different tillage methods and nitrogen levels, the benefits of straw to the comparative test. The results showed that different tillage methods and different nitrogen application rates had a significant effect on the efficiency of straw returning. Especially, the effect of mechanical rotary tillage on the yield of early rice was more obvious, with an increase rate of 7.3%.