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越冬前施好“腊肥”,是夺取油菜高产的一项重要措施。据调查,追施腊肥的油菜,比不追施的一般可以增产2～3成。为什么施腊肥能获得增产呢?这主要是因为:(1)油菜开盘期气温低,叶片增
Casting “waxy fat” before winter is an important measure to seize rapeseed with high yield. According to the survey, rapeseed oil topdressing than the general can not be chan yield 2 to 3 percent. Why is the application of fertilizers to increase production? This is mainly because: (1) rapeseed opening temperature is low, the leaves increased