Changes of Organce Matier Nitrogen Phosphorus and Potassium Nutrient in Different Cultivation System in Tea Garden

A five years follow up monitoring program for investigation was accomplished in the tea garden in Meitan. It was found that, under same conditions of weather, soil and fertilizing three different cultivation systems caused different fertility on soil.The soil fertility of the conventional cultivation tea garden decreased and showed certain retrogression in property. The artificial ecological tea garden brought a series of good ecological benefit. Under this cultivation system, soil fertility appeared an increasing and evolution trend. The close planting non farming tea garden not only could make a full use of the land, but also could make the fertility increase. However, the soil fertility in the artificial ecological tea garden was relativelly low. Comparing all the advantages and disadvantages of three cultivation systems. It is suggested that alternativelly using the artificial ecological cultivation in tea garden will be a better system.