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肥料是农作物的粮食,化肥已成为现代农业一大支柱.据联合国粮农组织估计,目前世界粮食总增产中,30～60%应归功于化肥的施用.我国的农业生产也表明了这一点,1951年全国化肥施用量为13万吨,平均每亩耕地用量0.18斤,当时粮食总产3,278亿斤;1980年化肥施用量6,000万吨,每亩耕地平均用量约80斤,粮食总产6,400亿斤.辽宁省1952年化肥总用量
Fertilizer is the food of crops, fertilizer has become a pillar of modern agriculture.According to the UN Food and Agriculture Organization estimates, the current world total grain output, 30 ~ 60% should be attributed to the application of fertilizers.Our country’s agricultural production also shows this point, 1951 The annual chemical fertilizer application was 130,000 tons and the average amount of cultivated land per mu was 0.18 kg. At that time, the total grain output was 327.7 million kilograms. In 1980, the chemical fertilizer application was 60 million tons, the average amount of cultivated land per mu was about 80 kg, and the total grain output was 6,400 million kilograms Liaoning Province in 1952 the total amount of fertilizer