Weed Control Efficacy and Production of Fruit according to Several Weed Control Methods in an Apple Orchard
2015
jang, I., Korea Fruit Pest Forecasting Research Center, Gunwi, Republic of Korea | Kang, J.E., Korea Fruit Pest Forecasting Research Center, Gunwi, Republic of Korea | Kim, H.M., Korea Fruit Pest Forecasting Research Center, Gunwi, Republic of Korea | Park, Y.S., BayerCropscience Ltd., Seoul, Republic of Korea | Lee, J.D., BayerCropscience Ltd., Seoul, Republic of Korea | Suh, S.J., Kyungpook National University, Daegu, Republic of Korea
This study was conducted for 3 years in an apple orchard to investigate the efficacy of the glufosinate-ammonium (GFA) SL for weed control in comparison to non-woven fabric mulch, sod culture and machinery cutting treatments. Glufosinateammonium SL 18% was applied with 2 to 3 times, and the extents of injury caused by the different weed control methods were also investigated during the 3 years. The highest level of weed control was obtained by glufosinate-ammonium 3 times spray (98.7%), followed by machinery cutting (95.1%), glufosinate-ammonium 2 times spray (81.5%) and natural sod culture (5.8%). Amounts of fruit production in three times application of glufosinate-ammonium 540 g a.i. ha-1, twice application of GFA, machinery cutting, non-woven fabric processing, sod culture and untreated control were 27.2, 26.2, 25.3, 24.1, 20.4 and 13.3 kg, respectively. There was no toxicity symptom of glufosinate-ammonium on the whole tree such as fruit, bud, trunk, branch and flower during the 3 years.
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