Đặng Văn Minh (trang 48-52)
Từ khoá: ảnh hưởng, chè, trồng trọt, tính chất lý hoá, đất
Effect of long-term tea cultivation on physical and chemical soil properties
Key indicators of soil quality (most sensitive to cultivation-induced changes) were soil organic C, nutrient supply (n, P, K and S), pH, mechanical resistance, bulk density, total porosity, plant available water content, and the MWD of soil aggregates. Contrast analysis of soil properties between the forest soils with the cropped soils and among cropped soils with different cultivation intervals provided a timely measure of soil indicators. Although the change during the 1st 10 ear of tea cultivation, measurable changes in important soil quality indicators were observed consistency in the older tea plantations. Trends associated with the various soil parameters suggested that, under current management practices, long-term tea cultivation results in a loss of soil quality.