Soil is the most important natural resource for all kind of living beings (plants, animals and organisms). Soil has been degraded over years. Degradation of soil resources include soil erosion by water and soil fertility decline (deterioration in soil physical, chemical and biological properties). The major processes involved in the soil fertility decline are the lowering of soil organic matter, degradation of soil physical properties (structure, aeration, water holding capacity), reduction in the availability of major nutrients (nitrogen, phosphorus and potassium), micronutrient deficiencies, and development of nutrient imbalances as well as acidification through increased use of nitrogen fertilizer alone..........................

Soil is the most important natural resource for all kind of living beings (plants, animals and organisms). Soil has been degraded over years. Degradation of soil resources include soil erosion by water and soil fertility decline (deterioration in soil physical, chemical and biological properties). The major processes involved in the soil fertility decline are the lowering of soil organic matter, degradation of soil physical properties (structure, aeration, water holding capacity), reduction in the availability of major nutrients (nitrogen, phosphorus and potassium), micronutrient deficiencies, and development of nutrient imbalances as well as acidification through increased use of nitrogen fertilizer alone..........................