忻定盆地冬小麦播期播量试验  

Experimental on Sowing Time and Seeding Rate of Winter Wheat in the Xinding Basin

作　　者：贾苏卿[1] 高志强[2] 李彦良[1] 焦雄飞[1] 李世勇[1] 

机构地区：[1]山西省农业科学院玉米研究所,山西忻州034000 [2]山西农业大学农学院,山西太谷030801

出　　处：《山西农业科学》2016年第3期341-344,共4页Journal of Shanxi Agricultural Sciences

基　　金：国家现代农业(小麦)产业技术体系(CARS-03-01-24)

摘　　要：山西忻定盆地近20 a来秋冬气候变暖,极端天气事件频发,传统的小麦播种技术已不再适应新时代小麦生产方式。试验以忻麦6160为材料,研究了播期、播量对冬小麦产量及产量构成因素的影响。结果表明,播期相同,随着播量的增加,成穗数明显增加,穗粒数则减少,千粒质量略有降低;而播量相同,随着播期的推迟,成穗数减少,穗粒数减少,千粒质量减少;实际产量随着播种量的增加先增加后减少,随着播期的推迟而减少。随着全球气温的升高,忻定盆地由以往最适宜播期9月18—25日变为9月23—30日,播量以每公顷225 kg左右为宜。Due to the autumn and winter climate warming and frequent occurrence of extreme weather events in the Xinding Basin in during the past 20 years, traditional wheat planting technology is no longer suitable for the production mode of wheat in the new age.With Xinmai 6160 as the material, the experiment studies the influence of sowing time and seeding rate on the yield of winter wheat and constituting factors of yield. The results showed that in same sowing time, spike number increased significantly with seeding rate increasing, grain number decreased, 1 000 grain weight decreased slightly. In same seeding rate, with the delayed sowing time, spikes number, grain number and 1 000 grain weight reduced. The actual yield increased first and then decreased with the increase of seeding rate, and decreased with the delay of sowing time. With the global temperature rising, the most suitable sowing time of winter wheat in the Xinding Basin had changed from the previous September 18-25 to September 23-30, and the seeding rate was suggested to be about 225 kg per hectare.

关 键 词：播期 播量 冬小麦 忻麦6160 产量 

分 类 号：S512.11[农业科学—作物学]