Potential of Biofertilizers Over Chemical Fertilizers

The make use of chemical fertilizers (e.g. urea, calcium nitrate, ammonium sulphate, diammonium phosphate etc.) have a great impact for the world’s food manufacture as it works as a fast food for plants causing them to grow more rapidly and proficiently. While unfavorable effects are being noticed due to the extreme and excessive use of these artificial inputs. Moreover, continual use of conventional chemical fertilizers subverts the soil ecology, disturb environment, degrade soil fertility and as a result shows harmful effects on human health and contaminates ground water. For these reasons, biofertilizers, the organic substances, which make use of microorganisms to raise the fertility of soil, has been identified as harmless input help in conservation the soil health and also the value of crop products. Biofertilizers add nutrients through the natural process of nitrogen fixation, solubilizing phosphorus, and stimulating plant growth through the synthesis of growth promoting substances. They are also environment friendly and responsible for continuous availability of nutrients from natural sources. This paper will review the facts and observations regarding biofertilizers, types and their potential for crop production based on relevant literature and research work carried out by many researchers.