◎ 壅土 yōngtǔ

(1) [piled-up earth;heap-up earth]∶堆积的泥土

决去壅土

(2) [heap soil or fertilizer over and around the roots of plants and trees]∶培土以促进作物根部发育并防止倒伏

(3) [hilling]∶指用机具耙地或播种时土聚集起来妨碍耕作的现象,多由草根或作物根茬阻挡、耙齿过密、土壤较湿等引起