土壤肥力的高低,直接影响着粮棉产量。因地制宜采用有效措施培肥土壤,是发展农业生产急待解决的大问题,应引起足够重视。绿肥参与耕作改制,全国各地均有利用。但因地制宜采取相应的利用形式,培肥增产效果更好。据我们试验,旱田较好的利用方式有: (一) “一粮一肥”盐碱涝洼、严重缺肥的 The level of soil fertility, a direct impact on grain yield. Adapting measures to local conditions and adopting effective measures to fertilize the soil is a major issue that urgently needs to be solved in the development of agricultural production and should be given enough attention. Green manure involved in farming system, are used throughout the country. However, according to local conditions to take the appropriate form of utilization, fertilizer production better. According to our experiments, the better utilization of dry land are: (a) “a grain of a fat” saline-water depression, a serious shortage of fat