Adding organic manures to soil in maize-based cropping systems improves soil quality and crop productivity. By combining organic manures with mineral fertilizers, crop productivity, fertilizer use efficiency, and yield sustainability increase. Organic manures decrease soil bulk density, increase pore volume, and improve soil water availability. They also enhance soil nutrient status, including organic carbon, extractable N and K, and available P contents. Overall, adding organic manures is crucial for maintaining soil quality and sustainable crop production in intensive cropping systems.