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Eichhornia crassipes (Mart.) Solms. is a noxious aquatic weed that pollutes all fresh water bodies. To check it’s vigours growth, control measures are crops (Vigna mungo) was treated by using compost dried from Eichhornia crassipes. The blackgram was allowed to grow in 30 days and the effect was studied by comparing with vermicompost. The physical parameters of crop were percentage of seed germination, length of root, shoot, leaf and stomatal index. The chemical parameter studied were chlorophyll content. The soil analysis also done to study the change in the physical and chemical parameters of soil. The result signifies the use of Eichhornia crassipes (Mart.) Solms. as the organic manure. &nbsp