Compost is an excellent organic fertilizer for bell peppers and Manure is another great organic fertilizer for bell peppers as it contains high levels of nitrogen, phosphorus, and potassium. Biofertilizers led to significant increases in bell pepper growth, yield and quality, with the most economical treatment for the production of high-quality peppers by applying azotobacter, vermicompost, and 75% NPK (125:75:30 kg/ha). Use a balanced fertilizer that is high in nitrogen, phosphorus, and potassium to provide the plants with the nutrients they need.