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我国旱地土壤开垦利用早,自然肥力耗竭利害;严重的水土流失和培肥不力,使旱地更加贫瘠.肥办低的旱地,蓄水保墒、抗御干旱能力差,水分转化效益低.施用肥料,提高土壤肥力,是充分利用有限降水的途径之一.旱地施肥,养分上要注意合理配合,用量上要考虑土壤供水,方法上要重视有机肥料底施,各种肥料深施和早施.采用这些措施.可保肥增效,提高水分的经济效益,充分发挥肥料的增产作用.
China’s dry land for soil reclamation and utilization of early, natural fertility depletion and harm; severe soil erosion and poor fertility, dry land is even more barren. Fertilizer low dry land, water and soil moisture, poor drought resistance, water conversion efficiency is low. Soil fertility, is one of the ways to make full use of limited precipitation.Water fertilizer on the dryland should pay attention to reasonable coordination, the amount of soil to consider the water supply, the method should pay attention to the bottom of organic fertilizers, a variety of fertilizers and early application of these facilities Measures can be fat and increase efficiency, increase the economic benefits of water, give full play to fertilizer production.