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一、覆盖保温每亩覆盖稻草200～300公斤,既保墒防冻,又增加土壤有机质,稻草遇降雨能自然落实,一般不影响油菜的光合作用。同时,可在叶面上撒施一层谷壳或草木灰,避免冷空气伤害叶片。二、施有机肥越冬前或越冬初期,在油菜行间增施土杂肥、圈肥、
First, the coverage of covering 200 ~ 300 kilograms per mu of straw, both moisture and frost, but also increase soil organic matter, straw in the event of rain to implement, generally do not affect the photosynthesis of rapeseed. At the same time, in the foliar application of a layer of chaff or ash, to avoid cold air damage leaves. Second, application of organic fertilizer before winter or early winter, increase inter-rape hybrid soil Tu fertilizer, loop fat,