잔디포장에서 Pendimethalin의 처리시기에 따른 잡초방제 효과 = A Novel Application Scheme of Pendimethalin for Weed Control in Turf Field

다국어 초록 (Multilingual Abstract)

Pendimethalin is a selective dinitroaniline herbicide, which is widely used for controlling annual and biennial weeds. It has been general that the application timing of pendimethalin was early Spring, when weeds started to germinate or regrow. The objective of this study was to evaluate the possibility that the early Spring application timing could be altered into Fall season for control of over-wintering weed species as well as annual weeds by persistence of pendimethalin in turf soil. Different amounts of pendimethalin were applied 1) at late Fall (Nov. 21, 1997) when the turf was at the dormancy and 2) early Spring (Mar. 6, 1998) when the weeds began to germinate. The pendimethalin residues in turf soil were assayed along with the developmental trend of weeds. Good correlation was obtained between the chemical and biological assay, suggesting that pendimethalin could be applied in late Fall rather than early Spring to control biennial weeds together with annual weeds.

목차 (Table of Contents)

• ABSTRACT = 447
• Ⅰ. 서론 = 448
• Ⅱ. 재료 및 방법 = 448
• 1. Pendimethalin 처리 = 448
• 2. 초종 및 잡초수 조사 = 449
• 3. 시약 및 재료 = 449
• 4. 토양시료채취 = 449
• 5. Pendimethalin 잔류분석 = 449
• Ⅲ. 결과 및 고찰 = 450
• 1. pendimethalin의 잡초방제 효과 = 450
• 2. 토양내 pendimethalin의 잔류성 = 451
• 3. pendimethalin의 잡초방제 효과와 토양잔류성 = 452
• 참고문헌 = 453