河南农业大学学报2011，Vol.45Issue(1)：28-32,5.
追肥时期和种植密度对小麦新品种豫农202产量及其构成因素的影响
Effects of top-dressing time and planting density on grain yield and components of wheat cultivar Yunong 202
摘要
Abstract
A split-plot experiment was carried out to study the effects of top-dressing time and planting density on yield and components of new wheat cultivar Yunong 202. The results showed that top-dressing time had a significant effect on yield but not on its components. Planting density had a highly significant effect on yield and on the spike number per hectare and grain number per spike but not on 1 000-grain weight. There were great yield difference and some components difference among planting densities in different top-dressing time. Grain number per spike and the spike number per hectare had a larger direct effect on yield in the different treatments of planting density and top-dressing time. Postponing top-dressing time and controlling planting density with 1.8 million ～ 2.4 million plants · hm-2 can increase the yield potential of wheat cultivar Yunong 202.关键词
小麦品种/豫农202/追肥/种植密度/产量/产量因素Key words
wheat cultivar/ Yunong 202/ top-dressing time/ planting density/ yield/ yield components分类
农业科技引用本文复制引用
孙文鑫,马彩艳,朱有朋,郭春燕,詹克慧,刘华威..追肥时期和种植密度对小麦新品种豫农202产量及其构成因素的影响[J].河南农业大学学报,2011,45(1):28-32,5.基金项目
国家农业科技成果转化项目(2008GB2D000183) （2008GB2D000183）
