Effects Of Microbiofertilizer On Improving Soil And Perennial Ryegrass Growth Under Pot Cultivation Conditions

On laboratory, five Bacillus have been developed into vaccine liquid products. Soaked with vaccine liquid ,the seeds of perennial ryegrass have been planted in sterilized soil.After 3 months' growth of perennial ryegrass, the following index have been tested:1. the height of perennial ryegrass; the hay weight of perennial ryegrass;2. the phosphorus and potassium of perennial ryegrass; the volume of roots and the surface of roots of perennial ryegrass;3. the chlorophyll of perennial ryegrass; the nitrate reductase of perennial ryegrass; the energy of roots of perennial ryegrass;4. the content of basal nutrition in soil before experimentation and the valid phosphorus and rapid potassium in soil after experimentation.Compare with the control, the results show that:1. the height of perennial ryegrass increase remarkably by 17.40%~22.43%;2. the hay weight of perennial ryegrass increase remarkably by 20.02%~34.60%;3. the phosphorus of perennial ryegrass increase remarkably by 21.41%~31.08%;4. the potassium of perennial ryegrass increase remarkably by 21.41 %~31.79%;5. the chlorophyll of perennial ryegrass increase remarkably by 20.47%~35.26%;6. the total surface of roots of perennial ryegrass increase remarkably by 13.51%~ 19.40%;7. the volume of roots of perennial ryegrass increase remarkably by 16.71%~20.67%;8. the energy of roots of perennial ryegrass increase remarkably by 18.59%~28.11%;9. the phosphorus and potassium in soil increase slightly, but not remarkably;10. the nitrate reductase of perennial ryegrass increase slightly, but not remarkably;11. the valid active amount of germ reduce finally, different microbiofertilizers show different way.