In research plots of about 1 ha each three different management practices were tested for rice after soybean: usual disking, no-till and deep plowing at beginning of the rainy season.

• 在约1公顷的试验小区上，大豆连作水稻试验三种不同管理措施：普遍园盘耙耕、免耕、雨季开始时深翻。