Common vetch is a type of plant that can help improve soil quality and increase crop yields. In this study, researchers looked at how planting common vetch as a green manure can benefit crops like triticale, oat, and corn. They found that using common vetch increased soil moisture, reduced the need for fertilizers, and led to higher crop yields. The crops grown after common vetch had significantly better growth and produced more food. This shows that using common vetch as a green manure can be a sustainable and effective way to improve farming practices and protect the environment.