Effect of various root stocks on the growth and of grafted tomato in different period under solar hreenhouse

Based on control of tomato seedling, reaserch of Rhizosphcric Environment for efftive their growth,the result showed： With the development of growth, their rhizosphcric environment is change also. Gregerlly, Actinomyce number is height in bear fruit period. Root activity is height, K, Ca, Mg and Zn mineral elements absorbing lot, bacteria is height in have been harvest period of grafted tomato, its growing is better.