清河农场是以水稻为主的农场,过去多施用商品肥料,不仅成本高,而且对盐碱土的改良还起不到积极的作用。自1953年起开始自制肥料,到今年8月底止,已积制肥料21,900多万斤,按其含氮量0.4%计算,可抵豆饼(含氮量6.8%)1,347万多斤。仅今年1—8月就自制肥料9,100万斤,供应了3万亩田地的基肥,减少购豆饼450万斤,节省商品肥料费用约27万元。农场自制吧料,不仅降 Qinghe farm is a rice-based farm. In the past, it was not only high in cost but also had a positive effect on the improvement of saline-alkali soil. Since 1953, self-made fertilizers have been started. By the end of August this year, more than 21,900,000 kilograms of fertilizer have been planted. Based on the nitrogen content of 0.4%, 13.47 million kilos of bean cake (containing 6.8% of nitrogen) can be obtained. From January to August alone, 191 million kilograms of homemade fertilizer was supplied, 30,000 acres of base fertilizer was supplied, 4.5 million jin of bean curd was purchased, and the cost of saving fertilizer was about 270,000 yuan. Farm homemade bar, not only down