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近十多年来,在我市农业生产中,化肥得到了迅速推广利用。据统计资料,1971年全市共用化肥4740吨,平均每亩58斤。1977年施用量最多,达14,892吨,平均每亩162斤。1978年后用量有所减少。1980年为11,931.3吨,平均每亩121.3斤。1980年和1971年相比,化肥施用总量增长2.5倍,亩用量增长2.1倍,而粮食总产量只增长1.6倍,亩产提高1.4倍,粮食产
In the past ten years, in the agricultural production of our city, the fertilizer has been rapidly popularized and utilized. According to statistics, in 1971 the city shared 4,740 tons of fertilizers, with an average of 58 pounds per mu. In 1977, the most used amount was 14,892 tons, with an average of 162 pounds per mu. After 1978, the dosage has been reduced. 11,931.3 tons in 1980, an average of 121.3 pounds per mu. Compared with 1971, the total amount of chemical fertilizers increased 2.5 times in 1980 and the amount of mu increased 2.1 times, while the total grain output increased only 1.6 times and that of mu production increased 1.4 times. The grain output