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油菜重施返青肥、适时施花肥和后期除蚜虫,对提高油菜产量效果很好.据我们试验,油菜返青后生长迅速,需要大量的养分,生长的叶片比年前增加一倍,叶面积增加五倍,单株重量增加五到七倍,花芽分化进入旺期.因此,早施重施速效肥,结合灌水增产显著.邯郸地区油菜返青与小麦返青接近,有的年份稍早几天,大约在2月中旬末即开始返青.特别是早
Rape re-applied to the green manure, timely application of fertilizers and later in addition to aphids, to improve the yield of rape very well.According to our experiments, rapeseed growth rapidly after re-growth, requires a lot of nutrients, the growth of leaf doubling than before, leaf area increased Five times the weight per plant increased five to seven times, flower bud differentiation into the waning period, therefore, as soon as Shi Shi Shi fertilizer, combined with irrigation yield significantly. Handan rape rejuvenation and wheat turning green approaching, and some earlier days a few days, about It will begin to return to green at the end of February