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杂交油菜在各地推广速度比较快,产量高、增产潜力大,一般增产15%~30%,但要发挥其增产优势,需要在播种育苗、肥水管理、病虫防治方面采取相应的措施。1..适期播种,培育壮苗目前各地推广的杂交油菜品种,均属半冬性核不育型,苗期生长快。播种过早,易早花早蕾,迟播又不利于高产群体的形成,因此各地要结合具体的气候条件和种植制度,选择适宜的播种期。一般三熟制稻田,宜在9月下旬播种育苗。可选择花生地、黄
Hybrid rapeseed is widely spread in all parts of the country, with high yield and large potential for yield increase, generally increasing 15% to 30%. However, in order to exert its advantage of increasing yield, appropriate measures should be taken in sowing nursery, fertilizer and water management, pest and disease control. 1 .. sowing the right time, nurturing seedlings At present, the promotion of hybrid rape varieties are semi-winter nuclear sterile, fast growth at seedling stage. Early sowing, early flowering early bud, late sowing is not conducive to the formation of high-yielding groups, so all localities should be combined with the specific climatic conditions and planting system, select the appropriate sowing period. General three cooked rice, should sow seedlings in late September. Can choose peanut, yellow