As usual, instead of just observing the color of the leaves or feeling the moisture of the soil as before, Ms. Lương Thị Thảo, from Phúc Thuần hamlet, Đại Phúc commune, Thái Nguyên province, holds her phone and opens the application that has been installed to check and monitor environmental indicators at the tea hill. Through this application, all information about air temperature, soil moisture, environmental humidity, care history, growth status, etc., of the tea plants is fully displayed. For Ms. Thảo, who has been associated with the tea plants in the Tân Cương area for nearly 30 years, this is a change she had never thought of before. For many years, tea care mainly relied on experience, observation of the weather, and the experience of professionals. But now, real-time information and data updates have become a "companion," also providing a scientific basis to assist her in the tea care process. According to Ms. Thảo, initially, the approach to technology left many people ...