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无为是安徽省油菜生产大县,常年油菜种植面积约50万亩,其中棉田套栽油菜面积约30万亩。棉田套栽油菜具有肥力充足、棉株在冬季可有效抵御冻害等有利条件,但也存在让茬不及时、棉株影响移栽密度和苗期光照不足等不利因素,制约了油菜的产量。为趋利避害获得棉田套栽油菜高产,近年来,无为县在汤沟、福渡等乡镇开展了油菜品种筛选、密度对比、不同施肥方法对比等试验,并结合
Inaction is the rapeseed production county in Anhui Province, perennial planting area of about 500000 acres of rapeseed, of which the rapeseed planting area of about 300000 acres of cotton. Cotton plantation rape has sufficient fertility, cotton plants in winter can effectively resist the frost damage and other favorable conditions, but also there is not timely stubble, cotton plant transplanting density and seedling lack of light and other unfavorable factors, restricting the yield of rape. In recent years, Wuwei County in Tang ditch, Fudu Township, such as rape breed screening, density contrast, comparison of different fertilization methods and other tests, combined with