不同氮肥施用比例对辽北地区精确定量栽培水稻生长的影响  

Different Proportion of Nitrogen Fertilization on the Growth of Quantitative Cultivation Rice in the Northern Area of Liaoning Province

作　　者：李非 

机构地区：[1]辽宁省农业技术推广总站,沈阳110034

出　　处：《中国稻米》2014年第5期65-67,共3页China Rice

摘　　要：以常规施肥方式为对照,通过对比3种氮肥施用比例应用效果,探索了适合辽北地区水稻精确定量栽培的施肥模式。结果表明,氮肥中基蘖肥和穗粒肥比例以6∶4较为合理,结合晒田能够有效控制水稻无效分蘖,提高穗粒数、结实率及千粒重,进而增加产量,与常规施肥方式相比产量增加18.6%。An experiment was carried out to explore suitable fertilization model for rice quantitative cultivation in the northern area of Liaoning by comparing the application effects of three kinds proportion of nitrogen fertilization to the eonventional fertilization. The re- suits showed that the nitrogen divided as 6：4 by basal fertilizer and panicle fertilizer is relatively reasonable, which can effectively control the ineffective tillers, increase grain numbers per spike, seed setting rate and the weight of grain, increase yield by 18.6%.

关 键 词：水稻 辽北稻区 氮肥 施用比例 定量栽培 

分 类 号：S511.062[农业科学—作物学]