Emission of Green House Gases (GHGs) from various sources into the atmosphere causes rise in air temperature. This addition of GHGs has a great impact on the environment. Among the GHGs, carbon dioxide (CO2) is the major contributor. A variety of options exists for mitigation of GHGs emissions in agriculture. The most prominent options are improved soil management practices viz. integrated plant nutrient management, precision agriculture (variable rate fertilizer technology), use of nitrification inhibitors, crop residue management, moisture restoration and restoration of crop productivity of degraded lands, which increase crop production per unit area, enhancing crop production and withdraw atmospheric CO2 through enhanced photosynthesis. This paper shows that such improved soil management practices can restore the crop productivity of marginal lands and purify the air by withdrawing atmospheric CO2.
Journal articles from the Grassland Society of Southern Africa (GSSA) African Journal of Range and Forage Science as well as related articles and reports from throughout the southern African region.