稻前冬牧70黑麦秸秆还田量试验研究  

Straw Returning Amount of Dongmu 70(Secale Cerale) before Rice Planting

作　　者：杨晓婉 刘春光 芦红萍 王泽平[2] 哈东兴 

机构地区：[1]宁夏农业技术推广总站,宁夏银川750001 [2]宁夏灵武市农业技术推广中心,宁夏灵武750400 [3]宁夏青铜峡市农业技术推广中心,宁夏青铜峡751600

出　　处：《宁夏农林科技》2017年第3期15-17,共3页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：通过大田试验,采用方差分析法对稻前冬牧70黑麦秸秆还田5个处理的水稻产量和杂草量进行比较分析,结果表明,冬牧70黑麦收获后秸秆还田对后茬水稻的增产和稻田杂草的抑制效果明显,以4 500 kg/hm^2秸秆施用量最佳,此时水稻产量为10 678.5 kg/hm^2,杂草密度为0.16株/m^2,比不施秸秆的水稻产量提高471.0 kg/hm^2,杂草密度低0.51株/m^2。In order to screen out straw returning amount of Dongmu 70 （Secale Cerale） before rice planting, the rice yield and weed yield of 5 processing methods were analyzed by variance analysis. The results showed that straw returning amount of Dongmu 70 before rice planting was effective to rice production and inhibition of weeds in paddy fields, and 4 500 kg/hm^2 straw application was the best. At this amount, the rice yield was 10 678.5 kg/hm^2 and the weed density was 0.16 plant/m^2, with yield, increasing by 471.0 kg/hm^2 and weed density decreacing by 0.51 plant/m^2 than paddr field without straw.

关 键 词：冬牧70黑麦 秸秆还田 水稻产量 

分 类 号：S512.5[农业科学—作物学]