Đỗ Thị Thanh Ren, Nguyễn Thị Ngọc Minh, Trần Bá Linh (trang 66-70)
Từ khoá: ảnh hưởng, phân hữu cơ, phân vô cơ, phân hỗn hợp, lúa, đất phèn, hydraquentic sulfaquepts
Effect of organic manure – in organic phosphorus mixed fertilizer on rice yield on acid sulfate soil (hydraquentic sulfaquepts)
2 levels of phosphorus fertilizer (60 and 10kg P2O5/ha of Superphosphate and Thermophosphate) was mixed with organic manure (2tons/ha biogas manure) and incubated 10 days before application. As a basic fertilizer dressing, 120kgN/ha as urea and 30kgK2O/ha as KCl were applied. Results: application of organic manure-inorganic phosphorus mixed and superphosphate, thermophosphate fertilizers in increasing rice yield significantly. The most efficiency of p fertilizers was obtained at 60kgP2O5/ha.