东北春玉米密植群体种植方式产量性能效应研究  

Study on Yield Effects of Different Groups with Different Planting Modes in Spring Maize in Northeast of China

作　　者：王晓波[1,2] 齐华[2] 赵明[1] 王敬亚[2] 梁熠[2] 盛耀辉[2] 刘明[2] 吴亚楠[2] 于吉林[2] 

机构地区：[1]中国农业科学院作物科学研究所,北京100081 [2]沈阳农业大学,沈阳110161

出　　处：《玉米科学》2011年第2期84-89,94,共7页Journal of Maize Sciences

基　　金：国家科技支撑计划(2006BAD02A13-4-5);国家"973"计划项目(2009CB1186-1-5)

摘　　要：采用"局部精作穴播"和传统"大小行"两种种植模式,对不同密度不同基因型群体春玉米产量效应进行研究。结果表明,紧凑型品种采用"大小行"种植方式其经济产量为11879～12170kg/hm2。采用"局部精作穴播"种植模式更有利于群体产量潜力的挖掘,与常规的"大小行"模式相比,随着密度的提高,穗粒数成为产量提高的主要限制因子。在光合性能方面,保持适度叶面积指数和叶片净同化率是"局部精作穴播"种植模式取得高产的必要保证。The new planting technique of ＂Aperture Semination with Part Exact Cultivation＂（FX） and the traditional planting technique of ＂Wind/Narrow Row＂（CK） were applicated in this experimentation and the yield effects in the techniques were studied.The results showed that the FX was more propitious to increase crop yield,when the yield of compact variety was between 11 879 kg/ha and 12 170 kg/ha in CK.Compared with CK,grain No.per ear was key factor to limit increasing yield in high density.In photosynthesis performance,keeping appropriate the mean leaf area index and the mean net assimilation rate were very important for high yield.

关 键 词：春玉米 密度 种植模式 产量效应 

分 类 号：S513.04[农业科学—作物学]