膜下滴灌不同水稻播种量对水稻产量构成要素的影响  

Effects of Different Sowing Rates on Rice Yield Components under Mulched Drip Irrigation Conditions

作　　者：胡成成 银永安 陈林 赵双玲 李丽 王肖娟 

机构地区：[1]新疆天业(集团)有限公司,新疆石河子832000

出　　处：《大麦与谷类科学》2015年第3期7-10,共4页Barley and Cereal Sciences

基　　金：新疆生产建设兵团博士资金(2013BB007);石河子市科技基础条件平台建设计划

摘　　要：以粳稻品种T-43为试验材料,采用机械播种,在播种密度为1.93穴/667 m2的条件下,单穴不同播种粒数,对膜下滴灌水稻产量构成要素进行研究。结果表明：膜下滴灌水稻在播种密度相同条件下,分蘖动态、单穴有效株数、产量构成等指标随单穴播种粒数的增加呈下降的趋势,表明膜下滴灌水稻在播种密度相同条件下,单穴播种粒数的多少对膜下滴灌水稻产量有重要影响,播种粒数在5-7粒之间为佳。This study investigated the effect of seeding number per hole on rice yield components in a mulched drip-irrigation system in which japonica cultivar T-43 was mechanically planted. The results showed that three indicators（ tillering dynamics,the effective number of rice plants in a single hole,and yield components） all declined with increasing sowing grains in a single hole under the same planting density,1. 93 hole /667 m2. This indicated that the seeding number in a single hole had a great impact on rice production with mulched drip irrigation under the condition of same planting density,and the optimal seeding number was 5 ~ 7 per hole.

关 键 词：膜下滴灌 水稻 播种量 产量 

分 类 号：S511.22[农业科学—作物学] S275.6