论文部分内容阅读
钙镁磷肥作为一种低浓度磷肥,依靠其独有的特点获得生存和发展空间:(1)对磷矿品位的要求低;(2)钙镁磷肥中含有大量的中、微量元素;(3)钙镁磷肥中的活性钙能中和土壤酸性,对酸性土壤及板结土壤具有改良作用。近年来,由于焦炭价格大幅上涨,价格相对低廉的无烟煤逐步被应用于钙镁
Calcium magnesium phosphate as a low concentration of phosphate fertilizer, relying on its unique characteristics of access to survival and development of space: (1) the requirements of phosphate rock grade is low; (2) calcium magnesium phosphate contains a lot of trace elements; (3) ) Calcium magnesium phosphate in the active calcium can neutralize the acidity of the soil, acid soil and compacted soil has an improved role. In recent years, as coke prices rose sharply, relatively inexpensive anthracite is gradually applied to calcium and magnesium