主要栽培措施对中单808产量的影响  

Effects of Main Management Factors on Yield of Maize Hybrid Zhongdan808

作　　者：董志强[1] 钱成明[2] 马兴林[2] 颜军[2] 王庆祥[1] 黄长玲[2] 

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

出　　处：《玉米科学》2008年第3期99-103,共5页Journal of Maize Sciences

基　　金：农业部跨越计划项目“高产高淀粉优质玉米新品种中单808生产技术集成与示范推广”

摘　　要：大田条件下,研究了种植密度、施氮量、施氮方式、喷施植物生长调节剂(玉黄金)等主要栽培措施对玉米新品种中单808产量的影响。结果表明:中单808高产适宜种植密度为45 000株/hm2,氮肥合理施用量为施纯氮225 kg/hm2,施用方式为播种前、拔节中期分两次按604∶0比例施入;喷施玉黄金对中单808产量形成具有明显效应,适宜喷施时期为14展叶期,喷施量为产品推荐量的1/2,增产效果显著。Effects of planting density, nitrogen rate and timing, spraying plant growth regulator （Yu-Huang-Jin） on yield of maize hybrid Zhongdan808 were studied under field conditions. The results showed that the suitable planting density was 45 000 plants/ha,the maximum yield was obtained at nitrogen rate of 225 kg N /ha.As for timing of N application, the best operation was splitting the N application into two times, 60% of the total N being applied before planting, the remainder of the N applied at growth stage of medium-term of shooting.Obvious effects of spraying Yu-Huang-Jin on yield were observed, the highest yield occurred when half of the recommendation concentration of Yu-Huang-Jin was sprayed at 14th leaf stage.

关 键 词：中单808 栽培措施 产量 

分 类 号：S531.04[农业科学—作物学]