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肥料是植物的粮食,是提高农业生产的物质基础。国内外的生产实践证明。化肥对作物增产起着很重要的作用。根据大量统计资料表明,近二十年来世界粮食产量增加将近一倍,其中化肥对增产的效果约占30—60％。 解放前,我国化肥工业基础十分薄弱,氮肥只有硫酸铵一个品种,磷肥只有台湾省少量生产,没有钾肥。解放后,在党的正确领导下,化肥工业从无到有,从少到多,得到了迅速发展。目前,我国不仅建成了规模巨大的氮肥基地,而且在一些磷矿资源丰富的地区兴建了磷肥厂;利用青海发现的钾矿盐,开采生产氯化钾。近几年来,复合
Fertilizer is the food of plants, is to improve the material basis of agricultural production. Production practice at home and abroad proved. Fertilizer plays a very important role in crop production. According to a large number of statistical data, the world’s grain output nearly doubled in the past 20 years, of which the effect of chemical fertilizers on production is about 30-60%. Before the liberation, China’s chemical fertilizer industry was very weak. Nitrogen fertilizer only had a single species of ammonium sulfate. Only a small amount of phosphate fertilizer was produced in Taiwan Province, and there was no potash fertilizer. After the liberation, under the correct leadership of the party, the fertilizer industry has grown rapidly from scratch and from less to more. At present, China has not only built a large-scale nitrogenous fertilizer base, but also constructed a phosphate fertilizer plant in some areas rich in phosphate rock resources. It exploits the potassium salt found in Qinghai to produce potassium chloride. In recent years, compound