KHẢ NĂNG SỬ DỤNG PHÂN LÂN SẢN XUẤT TỪ AXIT CLOHYDRIC (HCL) VÀ APATIT

Võ Minh Kha, Nguyễn Trường Sơn, Nguyễn Hồng Linh (trang 138-141)

Từ khoá: Sử dụng, phân lân, axit clohydric, HCl, apatit

Summary

Possibility of using phosphorus fertilizer manufactured from chlor acid and apatite

Anion Cl^– is easily to leach out the rice soil plowed layer. Experiment demonstrated that superphosphate produced by HCl acidulated apatite ore processing can be better for rice production than those produced by H2SO4 apatite ore processing. An apatite ore 100% acidulated by HCl or by mixed solution ½ HCl + ½ H2SO4 phosphate fertilizer processing was proposed.