氮肥施用时期对辽春18号的影响研究  

Study of Nitrogen Fertilizer Effects on Liaochun 18 at Different Application Time

作　　者：王英杰[1] 庄艳[1] 葛维德[1] 

机构地区：[1]辽宁省农业科学院,辽宁沈阳110161

出　　处：《辽宁农业科学》2014年第2期41-43,共3页Liaoning Agricultural Sciences

摘　　要：在春小麦生长发育过程中的三叶期、拔节期、孕穗期三个时期,对辽春18号春小麦追施氮肥,探讨其对辽春18号春小麦农艺性状及产量的影响。结果表明:拔节期追施氮肥,可使小麦株高增加、穗粒数增多、千粒重增加、穗粒重增加。在三叶期施用氮肥,可使小麦有效穗数最多。拔节期追施氮肥,小麦产量最高,其次是孕穗期追施氮肥的小麦产量,最后是三叶期追施氮肥小麦产量最低。We applied nitrogen fertilizer to the spring wheat cultivar Liaochun 18 during the the three-leaf stage,the jointing stage and booting stage,and studied the effect of nitrogen fertilizer on the agronomic traits and yield of Liaochun 18.The result indicated the application of nitrogen fertilizer in the jointing stage signifi-cantly increased plant height,the number of spike grains,weight of one thousand grains and spike grains.The application of nitrogen fertilizer in the three-leaf stage made wheat panicles number reach the maximum level. Besides,we can get the result that highest yield was obtained in the jointing stage with nitrogen nitrogen fertil-izer application,followed by booting stage,and the yield in the three-leaf stage was lowest.

关 键 词：春小麦 氮肥 施用时期 产量性状 

分 类 号：S147.23[农业科学—肥料学] S512.106.2[农业科学—农业基础科学]