Effect of city waste compost applied alone and in combination with chemical fertilizer on the yield and nutrient uptake of wheat and subsequent maize crop

This study was conducted to determine the effect of the compost applied with chemical fertilizer, its effect on NPK uptake and nutrient use efficiency by wheat and maize plant. The experimental design was RCBD with 3 replication for both crops under the same layout at Pirsabak Research Institute, Nowshehra. The higher yield and superior performance of CWC in conjunction with NPK over sole NPK or control even in the residual maize advocated that the use of CWC could help in maintaining the soil productivity for the long run. These results suggested that the use of CWC will not only promote the agricultural productivity but could also help in safe disposal of the city wastes and could manage the current pollution scenario with increasing population pressure in urban areas of the country. Based the present study the application of 20 t ha-1 CWC with 75% NPK could maintain higher yields of wheat and maize for two seasons under prevailing soil and climatic conditions.