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合理的群体密度是冬油菜高产的重要因素之一[1],本文研究了新疆油菜主产区拜城县冬油菜群体密度对冬油菜越冬率、产量及经济性状的影响。结果表明:适宜的群体密度能提高冬油菜越冬率、促进植株个体发育及增加籽粒产量。本试验表明拜城县冬油菜合理的群体密度应为4~7万株/666.7m2。
Reasonable population density is one of the most important factors for winter rapeseed production [1]. This paper studied the effects of winter rapeseed density on overwintering rate, yield and economic traits of winter rape in the main rapeseed production area of Xinjiang. The results showed that suitable population density could increase overwintering rate of winter rapeseed, promote individual plant development and increase grain yield. The test shows that the reasonable population density of winter rape in Baicheng County should be 4 ~ 70,000 / 666.7m2.