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在大田条件下考察了在基施农家肥、过磷酸钙、硫酸钾的基础上,氮肥(尿素)以种肥、冬前追肥、返青追肥不同的施肥方式施入对冬油菜生理生化指标、生长发育和产量的影响。结果表明,冬前施肥尤其是施种肥在改善与冬油菜抗性有关的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、可溶蛋白、可溶性糖、脯氨酸(Pro)等生理生化指标方面都表现出了积极的作用,并可促进冬油菜的冬前生长,提高冬油菜的越冬率;在冬前施肥的基础上配合返青追肥可显著促进冬油菜的生长、提高越冬率、增加产量。
Under field conditions, based on the basic farmhouse manure, superphosphate and potassium sulfate, nitrogen (urea) was applied to the physiological and biochemical indexes of winter rape with different kinds of fertilizers including topdressing, Development and yield effects. The results showed that the effect of winter fertilization, especially the application of fertilizer on improving SOD, CAT, soluble protein, soluble sugar and proline content in winter rapeseed, And other physiological and biochemical indicators have shown a positive effect, and can promote the winter pre-winter rape growth and improve the winter rape overwintering rate; fertilization in the winter based on the top dressing can significantly promote the growth of winter rape, winter Rate, increase production.