Effects of the application of a compost originating from crushed cotton gin residues on wheat yield under dryland conditions

The influence of four doses of a compost originating from residues of crushed cotton gin on wheat (Triticun aestivum cv. Cajeme) in dryland conditions (Guadalquivir Valley, Andalusia, Spain) has been studied. The results obtained in this study showed that this compost is of great agricultural interest product because of its organic matter content. The application of this byproduct to the soil resulted in an increase in soil microbial activity, structural stability and soil porosity. Mineralization of organic matter produced a higher concentration of NO3(-)-N in soil, and an increase on the yield parameters and grain yield in both seasons.