中国是世界产茶大国 ,现有茶园面积约达1 0 6万 hm2 ,主要分布在江南红黄壤的山丘和低丘陵地区 ,它的生产发展对我国山区和低丘陵地区的经济发展和生态建设都有直接关系。但是 ,我国红黄壤茶区气温高、雨水多 ,土壤酸性 ,有机质含量低 ,淋失率高 ,有效钾含量贫缺 ,尤其是近十多 China is a major tea producing country in the world. The existing tea plantation area is about 10 6 million hectares. It is mainly distributed in the hills and low hilly areas of red-yellow soil in the southern part of China. Its economic development and ecological construction in mountain areas and low hilly areas in China Have a direct relationship. However, China’s red and yellow soil tea area has high temperature, heavy rain, soil acidity, low organic matter content, high leaching rate and low available potassium content, especially nearly ten