Chemical Weed Control Systems in Orchard

제초제(除草劑)를 이용(利用)한 과수원(果樹園)의 잡초방제(雜草防除) 체계(體系)

In order to establish the chemical weed control systems in orchard, efficacy of glyphosate and paraquat with oxyfluorfen, simazine and alachlor were evaluated in pear and peach orchards. Dominant weed species existed before glyphosate or paraquat application were Artemesia princeps, Calystegia japonica, Erigeron canadensis, and Lepidium apetalum, but Digitaria sanguinalis was one of the most dominant weeds throughout growing season of fruit trees. Gtyphosate at 120g/10a followed by oxyfluorfen at 04g/10a drastically reduced number of weeds and fresh weight of weeds and was found to be the most effective method for controlling weeds in orchard. Paraquat at 100g/10a followed by oxyfluorfen at 117g/10a and sequential application of glyphosate at 120g/10a also provided good weed control.

중부지방(中部地方)에서 제초제(除草劑)에 의한 과수원(果樹園)의 잡초방제(雜草防除) 체계(體系)를 확립(確立)하기 위하여 Paraquat 100g/10a와 Gly-phosate 120g/10a를 철포(撤布)한 다음, Oxyfluorfen47~117g/10a, Simazine 100, 200g/10 a, Alachlor 130 g/10 a, Paraquat 100g/10a와 Glyphosate 120g/10a를 처리(處理)하여 제초효과(除草効果)를 비교(比較) 검토(檢討)하였다. 1. 시험수행전(試驗遂行前) 5월(月)에 발생(發生)된 우점잡초(優占雜草)는 쑥, 메꽃, 다닥냉이와 망초이었고, 시험기간(試驗期間)인 6~8월(月)에는 바랭이가 우점화(優占化)되었다. 2. Glyphosate 120g/10a를 철포(撤布)하고 Oxyfluorfen 94g/10a 이상(以上)을 토양처리(土壤處理)하면 제초효과(除草効果)가 우수하여 잡초(雜草)의 발생본수(發生本數)와 생체중(生體重)이 현저히 감소(減少)되었다. 3. Paraquat 100g/10a를 철포(撤布)한 후 Oxyfluerfen 117g/10a를 토양처리(土壤處理)하거나 혹은 Glyphosate 120g/10a를 2회(回) 철포(撤布)한 경우에도 제초효과(除草効果)는 양호(良好)하였다.