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１ 及时防治病虫草害越冬前，重点是防治好蚜虫和菜青虫。防治油菜草害主要方法是化学除草和耕松土相结合。化学除草选用芽前除草剂效果为佳，每亩用 ５０％丁草胺 １５０毫升或５０％乙草胺１２０毫升对水４０－６０千克喷施。 ２．适时追肥 在做到早施壮苗肥的基础上，重施腊
1 timely control pests and diseases before winter, the focus is on prevention and control of aphids and cabbage caterpillar. The main method to prevent rape is the combination of chemical weed control and tillage. Chemical herbicides use pre-emergence herbicide effect is better, with 50% of butachlor per acre 150 ml or 50% acetochlor 120 ml spray 40-60 kg of water. 2. Timely top dressing to do in the early seedling fertilizer on the basis of re-Shi wax