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Weeds are associated with crops since time and create acute problem in rainy season crop. The yield of maize under Indian condition may be attributed by number of factors. Among harmful effect on the growing plants and interference with land use, weed rank as prime enemies in crop production. Weed characterized by a fast growing rate in their seeding stage become a potential source of competition specially for soil nutrients. They interfere with efficiency of fertilizer utilization by crop plants because a sizable portion of the fertilizer added to the soil is used by weed.In the near future,...