播期密度氮肥运筹对‘罗麦10号’产量的影响  

Effects of different nitrogen fertilizer treatments sowing date density on yield of ‘Luomai-10'

作　　者：陈旭[1] 张秋丽[1] 费全凤 顾远帆 周峰利 李秀玲[1] 

机构地区：[1]上海市农业技术推广服务中心,上海201103 [2]崇明县农业技术推广中心,上海202150 [3]嘉定区农业技术推广服务中心,上海201800 [4]不详

出　　处：《上海农业学报》2017年第6期18-22,共5页Acta Agriculturae Shanghai

基　　金：上海市科技兴农推广项目[沪农科推字(2014)第2-3号]

摘　　要：为研究播期、密度、氮肥运筹对'罗麦10号'产量与产量构成的影响,进行了播期密度试验和氮肥运筹试验,试验结果表明:播期和密度对产量均有显著的影响,播期对籽粒产量的效应大于密度,播期为11月5日(S2)处理平均产量(7 510.20 kg/hm^2)显著高于11月15日(S3)、11月25日(S4)播种处理;早播+低密度处理可获得较高的产量。施氮水平为210 kg/hm^2、270 kg/hm^2时,基追比为6:4时平均产量最高,施氮水平为330 kg/hm^2时,基追比为7:3时平均产量最高。基本苗在210万穗/hm^2,总施氮量为270 kg/hm^2,基追比6:4,‘罗麦10号’可获得高产。To study the effects of sowing date,density and nitrogen fertilizer on the yield of ‘Luomai-10',the effects of sowing date, the test of planting density and nitrogen management on grain yield and yield components had been set up. The results showed that sowing date and density affected grain yield significantly,the average yield of November 5^(th)( S2) was the highest(7 510. 20 kg/hm^2) and significantly higher than November 15^(th)(S3)and November 25^(th)(S4). Early sowing and lower density treatment could get higher yield.When the nitrogen application levels were 210 kg/hm^2 and 270 kg/hm^2, the dressing ratio was 6: 4, the yields were the highest; when the nitrogen application level was 330 kg/hm^2,the yield of dressing ratio treatments 7:3 was highest. When the sowing date was November 5^(th), the basic seedlings was 210×10~4/hm^2,the nitrogen application was 210 kg/hm^2, the dressing ratio was 6:4,' Luomai-10 ' could attain an higher yield.

关 键 词：小麦 播期 密度 氮肥运筹 产量 

分 类 号：S512.1[农业科学—作物学]