Studies on Selective Herbicides to Cucurbitaceae Crop

호려과작물(葫藘科作物)에 대한 선택성제초제선발(選擇性除草劑選拔)에 관한 연구(硏究)

  • Ryang, H.S. (Department of Agricultural Chemistry, Chonbuk National University) ;
  • Moon, Y.H. (Department of Agricultural Chemistry, Chonbuk National University) ;
  • Kim, N.E. (Department of Agricultural Chemistry, Chonbuk National University) ;
  • Lee, J.H. (Department of Agricultural Chemistry, Chonbuk National University) ;
  • Choi, Y.C. (Department of Agricultural Chemistry, Chonbuk National University) ;
  • Park, H.K. (Department of Agricultural Chemistry, Chonbuk National University)
  • Published : 1988.06.30

Abstract

This study was conducted to select herbicides safe for cucurbitaceae crops under the polyethylene film mulching culture. No crop injury with ethalfluralin (N-ethyl-N-(2-methylally)-2, 6-dinitro-4-(trifluoromethyl) aniline) was found in gourd, water melon, cantaloup, cucumber and pumpkin of direct seeded culture. There was no significant reduction in fresh weight of gourd and pumpkin at the rate of 1080 g a.i./ha, that of water melon, cantaloup and cucumber at the rate of 720 g a.i./ha. Napropamide (N,N-diethyl-2-(${\alpha}$-naphthyloxy) propionamide) did not cause any crop injury at the rate of 1500 to 3000 g a.i./ha. There was no significant reduction in fresh weight of gourd, pumpkin and cucumber at the rate of 3000 g a.i./ha, and that of cantaloup and water melon at the rate of 1500 g a.i./ha. Trifluralin (${\alpha}$, ${\alpha}$, ${\alpha}$-trifluoro-2,6-dinitro-N, N-diprophlaniline) did not cause any crop injury in gourd. When ethalfluralin, napropamide and nitralin were applied to the transplanted seedlings of water melon and cantaloup, no significant reduction in the fresh weight were observed. The weeding effect greater than 90% was obtained with ethalfluralin at 720 to 1080 g a.i./ha and pendimethalin (N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine) at 1268 g a.i./ha. The rest treatment gave the weeding effect ranging from 81 to 90%.

폴리에칠렌 피복하(被覆下) 호려과(葫藘科)(박과) 5작물(作物)에 대하여 적용(適用)이 가능(可能)한 제초제(除草劑)를 선발(選拔)하기 위하여 밭포장(圃場)(식양토(埴壤土))에서 직파(直播) 또는 이식재배시(移植栽培時) 6종(種)의 제초제(除草劑)를 공시(供試)하여 포장시험(圃場試驗)을 실시(實施)한 결과(結果)는 다음과 같다. 1. 직파재배(直播栽培) (1) Ethalfluralin은 박, 호박, 수박, 오이, 참외에 대하여 초기약해(初期藥害)가 거의 없었으며, 최종생체중(最終生體重)에 있어서도 박, 호박은 1.080 g ai/ha까지, 수박과 오이, 참외는 720g ai/ha까지 유의차(有意差)가 없었다. (2) Napropamide는 1,500~3,000 g ai/ha까지 박과(科) 5종(種)에 대하여 초기약해(初期藥害)가 거의 없었고, 최종생체중(最終生體重)에 있어서 박, 호박, 오이는 3,000 g ai/ha까지, 참외, 수박은 1,500 g ai/ha까지 유의차(有意差)가 없었다. (3) Trifluralin은 890 g ai/ha, nitralin은 1,500 g ai/ ha에서 박에 한해서 초기약해(初期藥害)도 없었고 최종생체중(最終生體重)에 있어서도 유의차가 없었다. 2. 이식재배(移植栽培) 박을 태목(台木)으로 하고 수박과 참외의 접수(接穗)를 접목(接木)한 묘(苗)를 이식재배시(移植栽培時) 처리(處理)한 제초제(除草劑)중 수박, 참외에 대하여 약해(藥害)가 없고 생육량(生育量)에 있어서 유의차가 없는 제초제(除草劑)는 ethalfluralin(540~1,080 g 단, 수박은 720g ai/ha), napropamide(l,500~3,000 g ai/ha) 및 trifluralin(890 g ai/ha) 및 nitralin(1,500 g ai/ha)이었다. 3. 종합적(綜合的)인 제초효과(除草效果)는 ethalfluralin(720 g ai/ha 이상)과 pendimethalin(1,268 g ai/ha)이 90% 이상(以上)으로 가장 높았고 그 이외(以外)의 약제(藥劑)들은 81~85% 범위의 제초율(除草率)을 나타냈다.

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