CÁC DẠNG KALI TRÊN ĐẤT ĐỎ VÀNG PHÁT TRIỂN TRÊN ĐÁ GRANIT

Nguyễn Văn Chiến (trang 20-24)

Từ khoá:  kali, đất đỏ vàng, đá granit, granit

Summary

Potassium form on ferralitic soil derived from granit

Soil total K content is rather high, about 1.91%. Soil available K and soil immediately available potassium contents are high, especially I the soil samples with high O content. Appropriate method against erosion and surface water run off and effective method for increasing OM in soil are good ones for improving soil K supplying capacity in this soil.