Abstract
Application of organic manures help in mitigating multiple nutrient deficiencies at the same time provides better environment for growth and development by improving in physical, chemical and biological properties of soil. In this content use of organic manures such as vermicompost, farmyard manure, Goat manures, Poultry manure, Pressmud and green manure, etc., may supply sufficient amount of micronutrients in available form to crops and improve the quality of the agricultural produces Natural resources viz., land and water available for agricultural production is limited in most of the regions in world. So, increasing yields from current limited available land is the only solution in order to feed the increasing population. Integrated plant nutrient supply system is the only possible way, which can reduce the dependency on chemical fertilizers to attain the sustainable and profitable production without causing detrimental effects on soil and environment. The increasing cost of commercial fertilizer day by day is a serious matter of concern and their frequent application is deterionating bio-physical, chemical properties of soil. As a result, soil fertility is being diminished gradually. This in turn is leading to reduction in crop per unit area. Besides fertilizer there are several sources of plant nutrients like organic manures and biofertilizers.
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