Thanh Trai village in Vietnam has a long tradition of bean and tuber cultivation, using rich sandy soil and a variety of crops including Vietnamese beans, beans, lentils, winter vegetables, and potatoes. The cultivation of these legumes brings significant additional income to the farmers, with high economic efficiency despite requiring labor-intensive efforts. However, the number of households engaged in this trade and the cultivation area have decreased in recent years due to various challenges. The village is now focusing on propagating and encouraging more households to engage in large-scale commodity production of these crops, with a goal of improving the efficiency and quality of tuber production. This approach not only provides a substantial income but also allows for the rotation of crops, including spring peanuts, beans, potatoes, and winter vegetables, generating over 400 million VND in income per hectare per year.