壅

壅 甲骨文壅与雍同为一字。上为维，下为口，含壅堵之义。壅义为堆积。引申堵塞。又指将土壤、肥料拱培于植物根部。 壅 (动) ① stop up; obstruct ② heap soil or fertilizer over and around the roots (of plants and trees)