摘要
以甘蓝型常规油菜镇油7号为材料,研究了不同栽培密度下一穴双苗栽培方式对其产量及相关农艺性状的影响,以明确镇油7号最佳产量水平下的最适种植密度水平和栽培方式。结果表明:最适种植密度18万株/hm2时,镇油7号一穴双苗栽培方式比对照一穴一苗栽培方式可获得更高的产量。随着种植密度的增加,2种不同栽培方式下,产量呈先增后减的趋势,单株角果数、千粒重呈下降趋势;每角粒数与种植密度变化趋势不明显。
A field experiment was carried out to study the effects of transplanting two plants per hole on the yield, yield components and related agronomic characters of common rapeseed （ Brassica napus L.） variety “Zhenyou 7” under different planting densities. The results were as follows： under the optimum planting density 180000 plant/hm^2, the mode of transplanting two plants per hole could obtain higher yield of “Zhenyou 7” than the mode of transplanting one plant per hole; when the planting density increased, the yield of rapeseed under two different transplanting modes increased first and then decreased, and the number of pods per plant and the 1000-grain weight decreased, while the number of grains per pod had no obvious variation trend.
作者
葛永申
张丽佳
杨军
岳绪国
GE Yong-shen;ZHANG Li-jia;YANG Jun;YUE Xu-guo(Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu,Jurong 212400,China;Agricultural Committee of Jurong City in Jiangsu Province,Jurong 212400,China)
出处
《江西农业学报》
CAS
2018年第12期13-16,共4页
Acta Agriculturae Jiangxi
基金
江苏省重点研发专项(BE2016410)
江苏省镇江市重点研发计划(NY2015020)
关键词
油菜
种植密度
栽培方式
产量
Rapeseed
Planting density
Cultivation mode
Yield
