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一般的豆科作物都有固氮根瘤菌,它所固定的氮占豆科作物所需氮量的50%左右。如何更好的利用其固氮作用,减少氮肥的施用量,提高经济效益,有着重要的意义。要提高其固氮效果,需注意以下几个方面。一、豆科物在幼苗期要施适量的氮肥因豆科作物在幼苗期,类菌体尚未很好的发育,供应少量的氮肥,能促进其寄主植物的生
The general leguminous crops have nitrogen-fixing rhizobia, its fixed nitrogen accounted for about 50% of the nitrogen required for leguminous crops. How to make better use of its nitrogen fixation, reduce the amount of nitrogen fertilizer, improve economic efficiency, is of great significance. To improve its nitrogen fixation, should pay attention to the following aspects. First, leguminous crops in the seedling stage to apply the right amount of nitrogen fertilizer due to leguminous crops in seedling stage, the bacteria have not yet developed well, supply a small amount of nitrogen fertilizer, can promote the growth of its host plant