Tạp chí
Đặng Văn Minh (trang 120-123)
Từ khoá: xác định, đánh giá, chất lượng đất, chỉ số, sản xuất, chè
Summary
Identification of critical levels for soil quality indicators for assessment of sustainable tea cultivation
Lower crop yield in 40 years old tea is mainly due to soil degradation. Economic analysis indicated: benefit : cost ratio of 40 years old tea is on marginally above the ”break even” point. Any further decline in soil quality is likely to reduce yields to the point, where system would no longer be economically viable. Organic C, total K, available P and plant available water capacity are key soil quality indicators for modeling the economic sustainability of tea cultivation.
