Maintenance of soil fertility

Two things are necessary to restore soil fertility; to remove the source of degradation and treat the symptoms of degradation .Soil erosion represents the most complete form of land degradation – the removal of soil resource itself- and eroded sediment deposited on adjacent lands and drainage way lead to further degradation . A healthy soil has important chemical and biological attributes including nutrient supply, acid and base buffer capacity, and organic matter decomposition. Pathogen destruction, toxic metal inactivation and toxic organic inactivation and without degradation. Soil fertility remains at an optimum level if regular doses of manure, fertilizer and amendments are added to it. It ensures better crop yield, besides maintaining the soil fertility. In the proceeding paragraphs only the methods of soil fertility maintenance will be briefed because soil erosion and other aspect of soil degradation are being given by other authors. In this the proceeding paragraphs only the methods of soil fertility restoration will be briefed.