肥料与密度对油菜品种沣油679直播栽培产量等性状的影响

摘要

W ith the m ode of direct-seeding, sim plified and labor-saving cultivation, this study has tested how the grow th, yield and resistances ofa oilseed rape variety Fengyou 679 have been affected by differentfertilizing rates and planting densities.The resultshow s thatthe application ofhigh-concentration com pound fertilizerat600 kg/hm 2 and the planting density at400 000 plants/hm 2 have produced the highestyield and optim alcom prehensive econom ic charactersin the Fengyou 679.%在直播轻简栽培模式下，研究了不同肥料用量、不同种植密度对油菜品种沣油679生长发育、产量及抗性等性状的影响。结果表明，以施用高浓度复合肥600 kg/hm2、密度40万株/hm2处理产量最高，综合经济性状最好。