The amount of water and fertilizer used in growing tomatoes in a solar greenhouse affects the yield and quality of the fruit. By adjusting the irrigation and fertilization levels, the quality of the tomatoes can be improved without sacrificing yield. The best treatment group for optimal tomato quality and yield included specific amounts of chicken manure, nitrogen, phosphorus, potassium, and water. Adjusting these factors can lead to better tomatoes in terms of both quantity and quality.