Raising earthworm with cow dung in the pot induct new root of orange and the number of roots in the vermicast was 100.62%,126.27% more than roots in the cow dung and orchard soil,respectively.The nitrogen, phosphorus and potassium in the roots that in the vermicast were 21.13%,35.44%,76.31% more than that in the orchard soil,respectively.Raising earthworm with cow dung in the pot increased siglificantly level of nitrogen, phosphorus potassium and chlorophyll cotent in the leaves compared with fertilizing co...
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