绿肥紫云英与化肥配施对双季稻区水稻生长及产量的影响

Effects of Green Manure Milk Vetch and Fertilizer Combined Application on the Growth and Yield of Rice in Double-cropping Rice Areas

[目的]在双季稻区紫云英与水稻轮作制度下,探讨化肥配施紫云英对水稻产量及其构成因素的影响。[方法]采用田间定位方法,进行早稻和晚稻施肥效应试验,探讨水稻产量构成因素与不同施肥处理的关系。[结果]施肥可促进水稻生长和产量提高,化肥配施绿肥也能够显著地增加水稻产量。早稻化肥减量40%配施60%绿肥处理的下茬晚稻产量最高,而2008年晚稻以及2009早稻产量甚至显著高于100%化肥处理,2年早稻平均产量比100%化肥处理增加了247 kg/hm2,提高了3.8%。[结论]种植和利用紫云英可部分替代化学肥料,提高水稻产量,节约生产成本,提高有机-无机养分资源利用效率。

[Objective] Effect of combined application of Chinese Milk Vetch and fertilizer on rice yield and yield components were studied under the Chinese Milk Vetch-Rice rotation system in double cropping rice area.[Method] Obtained from field position experiments of fertilization effects of early rice and late rice,the relationships between yield components and different fertilizer treatment were investigated.[Result] Application of fertilizer improved rice growing and increased the yield of rice.The yield of rice...