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开春以后,油菜的生育特点是主茎增长,分枝增多,叶面积增大,同时迅速进行花芽(蕾)分化和开花结实。这一时期油菜生长好坏,直接影响着油菜产量的高低。因此,加强春季管理,对搭好油菜丰产架子,达到增枝增角增粒增重,夺取高产有着很重要的作用。几年来的生产实践证明,春季田间管理工作,应以肥水管理为中心,兼防病害,主要应做好以下几项工作。
After the spring, rape is characterized by the growth of the main stem growth, increased branches, leaf area increases, while rapid flower bud (bud) differentiation and flowering and fruiting. Rapeseed growth during this period is good or bad, a direct impact on the level of rapeseed production. Therefore, to strengthen the spring management, to rapeseed rapeseed racks, to increase branches and increase grain weight gain, to seize the high yield has a very important role. Over the past few years of production practice has proved that field management in spring should be fertilizer and water management as the center, and disease prevention, the main should do the following work.