Abstract:

In order to improve yield of tea garden, insure quality safe of tea and improve tea garden development well, the most important task is making soil fertility and tea nutrients clear. Though sampling investigation and analyzing evaluation on soil, leaf and branch of tea garden in Yiling district. The result showed the soil fertility was serious in tea garden. The proportion of tea garden those soil pH in optimum level was less than half. The content of alkali-soluble organic matter was low, and deficiency proportion was 65%. The content of soil was more than middle, the percent of tea garden those available nitrogen in middle and high level was 90%. Soil able phosphorus and potassium were deficient seriously; deficient rate was 63% and 81.5% respectively. Leaf and branch of tea had no nutrient deficiency symptom. The correlation was poor between soil, leaf and branch, the order of correlation was branch leaf >leaf and soil >branch and soil. The order of correlation between N, P and K was N>P>K. The nutrition content of leaf was stable, and was not influenced by fertility of soil in tea garden.