The study looked at how different organic sources affect the yield and quality of watermelon. They tested nine treatments using various organic fertilizers and compared them to a control group. The treatment using FYM and biofertilizer (Azotobacter) had the best results, with larger and heavier fruits, quicker harvest times, and higher overall yield per vine and per hectare. This suggests that using a combination of organic fertilizers can significantly improve watermelon production.