【摘要】 对油菜平衡施肥用量、种类和微肥喷施、施肥方式的试验研究表明 ,河南省油菜产区氮磷适宜用量为 :N172 .5～ 2 5 8.8kg/hm2 ,P2 O5 6 0～ 90 kg/hm2 。有机无机肥合理配施 ,采用基施和追施相结合是最佳的施肥模式 ,油菜苗期和初花期两次喷施硼锌微肥增产效果较好。更多还原

【Abstract】 By research on the rates, varieties, traceelements and application method of balanced fertilization , the optimal N and P rates for rape in Henan area is 172.5～258.8 kg N/hm\+2 and 60～90 kg P\-2O\-5/hm\+2, inorganic and organic fertilizrs together, base and dressing applied; and the spraying of B and Zn shows a good response to the yield increase in its seeding and bolting stages.更多还原