ABSTRACT
Soil and nutrient loss from agroecosystem is a phenomenon traced in all regions of the world. It may affect farm productivity detrimentally, both immediately with short-term effects and for long periods. This natural phenomenon needs careful consideration, while devising soil conservation practices, fertilizer schedules and cropping systems. Nutrient loss is incessant and intense in some parts of the world. In such areas, nutrient loss and soil deterioration has to be thwarted by adopting a range of agronomic procedures. In other words, integrated approaches are needed to restrict loss of soil fertility. Nutrient loss is negligible or small if fertilizer schedules are split and carefully matched with crop’s demand. Nutrients that accumulate in soil become vulnerable to natural processes that hasten their loss from agroecosystem. Soil nutrients are also lost through leaching, percolation, erosion and gaseous emissions. It is marked in case of soil-N and C. There are several agronomic procedures that halt loss of soil nutrients. For example, crop residue recycling in situ and adoption of soil conservation practices are essential to thwart loss of nutrients.
