氮素穗肥对辽粳212产量的影响  

Effects of Panicle Nitrogen Fertilizer on Yield of Liaojing 212

作　　者：张满利 陈盈 王彦荣 李全英 李如海 ZHANG Man-li;CHEN Ying;WANG Yan-rong;LI Quan-ying;LI Ru-hai(Rice Research Institute of Liaoning Province,Shenyang 110101,China)

机构地区：[1]辽宁省水稻研究所,辽宁沈阳110101

出　　处：《黑龙江农业科学》2020年第5期21-23,共3页Heilongjiang Agricultural Sciences

基　　金：国家重点研发计划(2018YFD0300304);沈阳市中青年科技创新人才支持计划项目(RC180067);辽宁省“兴辽英才计划”(XLYC1802119);辽宁省农业科学院杂交稻育种学科资助项目(2019DD133719)。

摘　　要：辽宁地区水稻生产传统施用氮肥为225 kg·hm-2,以基肥和分蘖肥为主,很少施用穗肥,而适当的前氮后移可以增加水稻的产量。以辽粳212为试验材料,设置不同穗肥施用比例和施用时期,分析不同氮肥模式下辽粳212的产量因素构成。结果表明:在倒二叶施用,穗肥用量占总肥料的10%,即22.5 kg·hm-2时,产量较为稳定。The traditional application of nitrogen fertilizer in rice production in Liaoning Province is 225 kg·hm-2,which mainly consists of basal and tillering fertilizer,with little application of panicle fertilizer.Liaojing 212 was used as the experimental material to analyze the yield factors of Liaojing 212 under different nitrogen fertilizer modes.The results showed that when the amount of panicle fertilizer accounted for 10%of the total fertilizer,22.5 kg·hm-2,the yield was relatively stable when it was applied in the inverted two leaves.

关 键 词：穗肥 辽粳212 产量 

分 类 号：S51[农业科学—作物学]