水稻营养生长期与生殖生长期不同比例施氮量的试验总结  

Summarization on Experiment of Different Nitrogen Application Ratio at Vegetative and Reproductive Growth Stages in Rice

作　　者：贾汝志 王立余[2] 李忠武[2] 柳维刚[2] 韩静[2] 武海荣[2] 

机构地区：[1]大石桥市农业飞机场,辽宁营口115100 [2]大石桥市农业技术推广中心,辽宁营口115100

出　　处：《北方水稻》2007年第3期108-109,共2页North Rice

摘　　要：通过2 a对水稻营养生长期与生殖生长期施用不同比例氮肥试验研究,结果表明:营养生长期与生殖生长期的氮肥分配比例以7∶3为宜,可减少无效分蘖、提高成穗率,提高结实率和千粒重,增产40 kg/667 m2。Through the research on different nitrogen application ratio at vegetative and reproductive stages in rice, the results showed that the suitable nitrogen application ratio at vegetative and reproductive stages was 7：3 so that the non- effective tillers were reduced, effective panicle rate increased, kernel set and 1 000-grain weight enhanced, and the yield increased by 40 kg/667 m^2.

关 键 词：水稻 营养生长期 生殖生长期 施氮量 产量 

分 类 号：S147.22[农业科学—肥料学]