石煤渣用作肥料好石煤是古代低等植物沉积而成的一种灰分含量高、热值低的燃料。它含有十几种农作物必须的营养元素，如磷、钾、硅、钙、镁、硫、铁、钼、锰、硼、锌及稀土等。石煤经高温燃烧后，能将这些元素的全部或部分转化为农作物所能吸收利用的有效成分而保留在废渣... Stone cinder as a fertilizer Good stone coal is a deposition of ancient lower plants with a high ash content, low calorific fuel. It contains more than a dozen kinds of crops essential nutrients, such as phosphorus, potassium, silicon, calcium, magnesium, sulfur, iron, molybdenum, manganese, boron, zinc and rare earth. After the high-temperature combustion of stone coal, all or part of these elements can be converted into active ingredients that can be absorbed and utilized by crops and retained in the ...