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台湾桃园区农业改良场1982年调查了台北、桃园、新竹、苗栗等地的土壤,约四分 之三为强酸性,即择点进行改良土壤试验。据试验以中钢公司的副产品矽酸炉渣,磨成约80目左右的粉末(含有氧化矽36.5％、氧化钙43.6％、氧化镁7.3％,还含有少量铁、锰、钾、锌、铜等元素)改良酸性土,效果良好。1987年进行示范推广,总面积1,400公顷,每公顷用矽酸炉渣2吨,经用矽酸炉渣改良过的土壤种植包括葱、芥菜、韭、大
In 1982, Taoyuan District Agricultural Improvement Farm in Taiwan investigated the soils of Taipei, Taoyuan, Hsinchu and Miaoli. About three-fourths of the soils were strongly acidic, that is, selective soil tests were conducted. According to the test, Sinosteel, a by-product of Sinosteel Co. Ltd., is ground into a powder of about 80 mesh (containing 36.5% of silicon oxide, 43.6% of calcium oxide and 7.3% of magnesium oxide and a small amount of iron, manganese, potassium, zinc, copper, etc. Element) Improve the acid soil, the effect is good. 1987 demonstration and extension, with a total area of 1,400 hectares, per hectare with 2 tons of silicate slag, improved by the use of silicate slag soil cultivation, including onions, mustard, leek, large