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根据油菜不同生育阶段的生长特点和需肥特点,高产施肥的重点把握足、早、稳、巧“四字经”即:基肥要注重一个“足”字。油菜生长势强,叶大分枝多,吸肥力强,应注重基肥的施用,基肥不足,幼苗瘦弱,进而影响植株的正常生长和高产苗架的搭建。基肥以有机肥为主,化肥为辅,一般每667平方米施有机肥2000公斤,45%通用型复合肥25～30公斤或36%的复合肥(15%-10%-11%)30～40公斤,严重缺硼土壤用硼砂0.5～1公斤。施用时结合耕翻整地将有机肥、复合肥与硼肥深施,切忌施肥过浅,以免造成油菜中后期脱肥。
According to the growth characteristics of different rapeseed stages of growth and characteristics of need to be rich, high-yield fertilizer to grasp the key points, early, stable, clever “four characters by ” that is: the base fertilizer should pay attention to a “foot ” character. Strong growth rape, leaf large branches, strong suction, should pay attention to the application of basal fertilizer, lack of basal fertilizer, seedling thin, and then affect the normal growth of plants and high-yield seedling stand structure. Basal fertilizer is mainly organic fertilizer, supplemented by chemical fertilizers, generally 2000kg of organic fertilizer per 667m2, 25 ~ 30kg of 45% general compound fertilizer or compound fertilizers of 15% -10% -11% 40 kg, a serious shortage of boron bauxite soil with 0.5 to 1 kg. Combined with tillage when applied to organic fertilizer, fertilizer and boron fertilizer, should not over-fertilization, so as not to cause the late phase of rapeseed.