The researchers aimed to make organic compost from corn by-product to use as plant fertilizer. They used a mix of effective microorganism (EM4) and Azotobacter to speed up the composting process. The best compost mix was 3 parts EM4 to 1 part Azotobacter, which increased nitrogen, phosphorus, and potassium content significantly. This compost also led to faster growth of corn stems and leaves, resulting in a higher yield of tomatoes and chilies.