The term weed is used generally to unprofitable, troublesome or noxious growth and unwante plants in human controlled settings especially farms, fields and water bodies. Mechanical removal and weedicidal spray are common methods to eradicate weeds, but both these methods are not feasible. The disposal and decomposition of weed biomass is also a big problem. The present study deals with the use of weed biomass for the vermicomposting. Vermicompost of three common weeds of this area Parthenium hysterophorous, Lantana camara and Eichhornia cresipes was prepared as proposed by the Rajkhowa, et .al.(2005).
The prepared vermicompost of all the three weeds was used as biofertilizer in soybean crop separately. The protein content was assessed at the regular interval of 15 days till 75 days, in all the vermicompost treatments. The study revealed that in all the three vermicompost treated soil protein content increased considerably over control. This clearly indicates that weed biomass can be utilized for vermicomposting, and the prepared vermicompost is beneficial for growing of crops.