TÍNH CHẤT LÝ HỌC CỦA ĐẤT TRỒNG CHÈ LÂU NĂM

Đặng Văn Minh¹

¹Khoa Tài nguyên và Môi trường nông nghiệp, Trường Đại học Nông lâm Thái Nguyên

Từ khoá:  tính chất lý học, đất, chè

Summary

Physical properties of the soils under long term tea growing

Tea fields were selected including 10, 25 and 40 years old tea crops and forest soil nearby was considered as a control plot. Results: soil texture changed little during 40 years of cultivation. However, other soil properties such as bulk density, total porosity, soil resistance, plant available water capacity and mean weight diameter were significantly changed in line with soil degradation. Most changes were at a surface soil layer. These changes of soil properties would affect negatively to the crop yield.