The researchers studied how different fertilizer methods affect rice yield and soil health when using milk vetch. They found that delaying fertilizer application can increase rice yield and value. The best method was using a combination of basal, tillering, and panicle fertilizers. This approach also improved nitrogen accumulation in rice and soil organic carbon. Overall, using 30% basal, 40% tillering, and 30% panicle fertilizers was the most effective for increasing rice yield and soil fertility.