有机无机肥料配合施用对水稻干物质积累及运转的影响

摘要

采用田间小区试验设置有机无机肥料配合施用的3个不同水平,与农民常规施肥作对照,研究有机无机肥料配合施用对水稻产量、产量构成因子和干物质积累及运转的影响.结果表明,在等商品有机肥用量条件下,配施适宜比例无机肥料处理与农民常规施肥相比,产量提高16.4％～22.6％,总干物质积累量提高18.8％～26.9％,均达极显著水平(P＜0.01).同时,显著增加抽穗后干物质积累贡献率,降低茎叶物质转运率,从而实现增产.%A plot experiment was set with three different levels of the mixed application of organic-inorganic fertilizers.Compared with farmers fertilization practice,the effects of mixed application of organic-inorganic on the yield,yield components and dry matter accumulation,translocation of rice were studied.Results showed that yield and dry matter accumulation of rice increased by 16.4％-22.6％ and 18.8％-26.9％,respectively,compared to farmers' fertilization practice,and both showed significant difference(P＜0.01) under the equal organic amount and appropriate proportion of inorganic fertilizer.And that CPA was significantly increased and TAR significantly reduced,which should be attribute to increased rice production.