Hoàng Thị Minh (trang 61-64)
Từ khoá: thành phần, lân, đất dốc, phương thức, canh tác
Soil phosphorus of some upland soil types under different farming systems
Inorganic phosphorus fractions play important role in supplying nutrients for plant. Inorganic phosphorus content of different soil types is different. The content of inorganic soil phosphorus fraction can be ranged as P-solution <P-Al<P-Ca<P-Fe. Effect of applied phosphorus fertilizer is limited in slopping land.