PHOTPHO Ở ĐẤT FERALIT NÂU VÀNG PHÁT TRIỂN TRÊN PHÙ SA CỔ TRỒNG THUỐC LÁ VÀNG (VIRGINIA)

Văn Huy Hải, Hoàng Tự Lập, Nguyễn Hoài Thu Hương (trang 69-72)

Từ khoá: photpho, feralit, đất feralit, đất feralit nâu vàng, phù sa, thuốc lá

Summary

Phosphorus in yellowish-brown ferralitic soils on old alluvials growing yellow tobacco

Phosphorus groups, its forms and receptive curve in studied soil were investigated. Some nutrient forms were interested in such as PO₄^3-, BO₄^3- and MoO₄^2- in order to upgrade effect of fertilizers in these forms and to raise productivity and quality of tobacco.