本 試驗은 1989년에 경기도 광주에서 土垂토란을 供試하여 栽植密度는 60×30㎝로 하고 손 除草區와 放任區 外에 Ethalfluralin과 Clomazone의 각각의 單劑處理區와 Paraquat fb Ethalfluralin과 Paraquat fb Cloazone의 각각의 組合處理區를 두어 토란밭의 雜草發生 樣相과 각 處理에 따른 除草效果 및 收量에 관한 基礎 資料를 提供하고자 本 試驗을 실시하였다. 주요 結果는 다음과 같다. 1. 發生 雜草는 總 12科 15種이었다(돌피, 바랭이, 강아지풀, 개비름, 여뀌, 깨풀, 명아주, 좀명아주, 쇠비름, 참방동산이, 개갓냉이, 진득찰, 토끼풀, 괭이밥, 꽃바지). 2. 피>쇠비름>깨풀 順으로 優占度가 優勢하였다. 3. 單劑處理區보다 組合處理區가 높은 防除價를 보였다. 4. 손除草區에 비하여 放任區의 收量이 91.8% 減收하였다. 5. 單劑處理區보다 組合處理區의 收量이 더 높았다.

A cultivar of taro(Colocasia antiquorum var. esculenta Engl.), Tosutoran was cultivated with planting density 60×30 ㎝ at the field of Kwang-ju located in Kyeong-ki province in 1989. The purpose of this experiment was to attain the basic information about the pattern of weed occurrence and the effect of weed control on yield by various treatments in taro field. Ethalfluralin(35 EC), Clomazone(47.1 EC), Paraquat(24.5 Lq.) fb Ethalfluralin and Paraquat fb Clomazone were treated except for untreated plot and hand weeding plot. Weeds occurred were 15 species in l2 families, the dominant weed species were Echinochloa crus-galli, Potulaca oleracea, Acalypha australis in taro field. Weed control effects were higher in combination treatments than in single treatments so the yield was higher in combination treatment than in single treatment. Yield of untreated plot was reduced to 91.8% by comparison with that of hand-weeding plot.