The study looked at how using both chemical and organic fertilizers can help increase rice yield and improve soil fertility. By analyzing soil samples from a long-term experiment in China, researchers found that using a combination of both types of fertilizers was the best way to achieve high yields and healthier soil. Organic fertilizers were particularly good at increasing soil organic matter and nitrogen levels, while chemical fertilizers were more effective at boosting phosphorus levels. Overall, using a mix of chemical and organic fertilizers is important for getting the most out of rice crops and keeping the soil in good condition.