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不同密度对江优919生长及产量的影响 被引量:1

Effects of Different Planting Density on Growth and Yield of Jiangyou 919
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摘要 为探讨江优919的适宜栽培密度,开展了不同宽窄行的密度试验.结果表明:江优919栽培密度为12688穴/667m2[(36.6cm+ 16.5cm* 19.8cm)]单产最高,达610.21kg/667m2,此密度植株茎蘖数较多,成穗率和结实率高.拟合产量与密度抛物线y=0.000003x2+0.0721x+13692,栽插密度为12017穴/667m2时单产最高.在生产上建议江优919的栽培密度为12000~13000/667m2. To explore the appropriate planting density of Jiangyou 919, different narrow--row spacing were applied intest. The results showed that the planting density was 12688 hills/667m2 [-(36.6cm+ 16.5cm * 19.8cm)], the yield was the greatest, yielded 610.21 kg/667m2 ,the tellers of which was more than others, effective spike rate and setting percentage were higher. The curve of yield and planting density was y= 0. 000003x2 +0. 0721x-b 13692, the planting density is 12017 hills/667m2 , yield is highest. So 12000-13000 hills/667m2 was suggested in the production of Jiangyou 919.
出处 《耕作与栽培》 2015年第3期45-46,52,共3页 Tillage and Cultivation
基金 江优919与江两优3号高产栽培技术推广 黔科合成字[2013]5068
关键词 密度 江优919 产量 planting density Jiangyou 919 yield
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