Biofertilizer are substances that make use of micro-organisms to soil fertility. These fertilizers are not harmful to crops and other plants as fertilizer. In fact they are made from waste animal with microbial mixtures. Micro-organisms used to increase the level of nutrients in plants. They let the plants grow in a healthy environment. They are also environmentally friendly, and does not cause pollution of any kind. Use of organic fertilizers in the soil helps the plants healthy and protect against disease.