西北农业学报2025，Vol.34Issue(9)：1598-1606,9.DOI:10.7606/j.issn.1004-1389.2025.09.003
不同播期播量对冬小麦生长和产量的影响
Effects of Different Sowing Dates and Seeding Rates on Growth and Yield of Winter Wheat
摘要
Abstract
To determine the high-yield and high-efficiency cultivation measures for the winter wheat of variety'Xinong 633',a two-factor split-plot design was used to study the effects of sowing date(Oc-tober 18,October 25,and November 1)and seeding rate(150 kg·hm-2,187.5 kg·hm-2,and 225.0 kg·hm-2)on the growth and grain yield of winter wheat.The results showed that the leaf area in-dex,dry matter accumulation,tiller development,and yield of wheat decreased with the delay of so-wing date under the same seeding rate.The highest grain yield was obtained when the October 18,which was 6.89％and 9.72％higher than those when October 25 and November 1,respectively.As the sowing date was delayed,the active grain-filling date and effective grain-filling time showed a de-creasing trend,while the mean grain filling rate first increased and then decreased.At the same sowing date,the leaf area index,dry matter accumulation,tiller development,and yield of the high seeding rate were better than those of the low seeding rate.The yield at the 225 kg·hm-2 level was 7.63％higher than that at the 150 kg·hm-2 level,but was not significantly different from that at the 187.5 kg·hm-2 level.In conclusion,the optimal sowing date and seeding rate of'Xinong 633'were October 18 and 187.5-225.0 kg·hm-2,respectively,which could achieve a higher yield level.关键词
小麦/播期/播量/生长/灌浆特性/产量Key words
Wheat/Sowing date/Seeding rate/Gowth/Grain-filling characteristics/Grain yield引用本文复制引用
王涛,张帆,张博伦,陈瑞雪,苏琬琦,闵东红,韩娟..不同播期播量对冬小麦生长和产量的影响[J].西北农业学报,2025,34(9):1598-1606,9.基金项目
农业生物育种重大专项—黄淮南片麦区超高产广适小麦新品种试验示范与推广应用(2023ZD040230504). Major Agricultural Biotechnology Breeding Project—Experimental Demonstration and Promotion of New High-Yield,Widely Adaptable Wheat Varieties in the Southern Huang-Huai Wheat Region(No.2023ZD040230504). （2023ZD040230504）
