http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
참외 껍질 유무에 따른 Acrinathrin, Diflubenzuron, Mandipropamid, Pyraclostrobin 잔류량 비교
김이선(Leesun Kim),박정훤(Jeong-Hwon Park),노현호(Hyun-Ho Noh),김창조(Chang-Jo Kim),김단비(Dan-Bi Kim),권혜영(Hyeyoung Kwon),진용덕(Yong-Duk Jin),노진호(Jin-Ho Ro) 한국농약과학회 2021 농약과학회지 Vol.25 No.3
For pesticide residue analysis in oriental melon, unpeeled sample is used in Korea but peeled sample is used in Japan, which can cause some difficulties in exporting melons to Japan. This study was designed to compare the amount of pesticide residue in unpeeled and peeled melon. Target pesticides, acrinathrin and diflubenzuron (insecticides) and mandipropamid and pyraclostrobin (fungicides) were applied two or three times onto the oriental melons at the interval of ten days. After the final application, the samples were collected at 0, 1, 3, 5, 7 and 14 days. Unpeeled and peeled melon samples were pulverized respectively for residue analysis. The residues in unpeeled samples were 0.02-0.28 ㎎ ㎏<SUP>-1</SUP> for acrynathrin, 0.03-0.43 ㎎ ㎏<SUP>-1</SUP> for diflubenzuron, 0.06-0.48 ㎎ ㎏<SUP>-1</SUP> for mandipropamid, and 0.03-0.32 ㎎ ㎏<SUP>-1</SUP> for pyraclostrobin. The residues of acrynathrin, diflubenzuron, mandipropamid, and pyraclostrobin in peeled samples were 0.01-0.02 ㎎ ㎏<SUP>-1</SUP>, 0.01-0.02 ㎎ ㎏<SUP>-1</SUP>, 0.01-0.04 ㎎ ㎏<SUP>-1</SUP>, and 0.01-0.02 ㎎ ㎏<SUP>-1</SUP>, respectively. The residue ratios in the unpeeled/peeled oriental melon at 0-14 DAT (days after treatment) were 3.5-28.6 for acrynathrin, 5.4-24.9 for diflubenzuron, 12.5-18.1 for mandipropamid, and 6.1-42.4 for pyraclostrobin. When the lowest residue ratio is applied to maximum residue level (MRL) guideline of Japan, MRLs of acrynathrin, diflubenzuron, madndipropamid, and pyraclostrobin residues in unpeeled oriental melon were changed into 0.07, 1.07, 0.12, and 0.31 ㎎ ㎏<SUP>-1</SUP>, respectively. When acrynathrin, diflubenzuron, mandipropamid, and pyraclostrobin residue in unpeeled oriental melon were under 0.07, 1.07, 0.12, and 0.31 ㎎ ㎏<SUP>-1</SUP>, it is possible to export the oriental melons to Japan without extra test.
포도 및 복숭아 과수원 토양 및 과실 중 잔류성유기염소계 농약류 잔류량 조사
임성진(Sung-Jin Lim),박정훤(Jeong-Hwon Park),노진호(Jin-Ho Ro),오영탁(Young-Tak Oh),주형곤(Hyeong-Gon Joo),이민호(Min-Ho Lee),윤효인(Hyo-In Yoon),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),박병준(Byung-Jun Park) 한국농약과학회 2018 농약과학회지 Vol.22 No.4
This study was conducted to investigate residual organochlorine pesticides in grape and peach orchard and fruits. Extraction and clean-up method were developed using the modified QuEChERS method for residual organochlorine pesticides (ROCPs) in orchard soil and fruits. Recovery and limit of detection (LOD) of ROCPs in soil and fruits were 76.4-101.2 and 76.4-90.4%, 0.01-0.08 and 0.2-0.4 μg/kg, respectively. Detected ROCPs in grape and peach orchard soil was 2,4-DDT, 4,4-DDE, 4,4-DDT, and endosulfan sulfate, the residues were 3.3, 2.3-7.1, 4.5, and 19.2-73.4 μg/kg, respectively. But four pesticides in all fruit samples were not detected. These results showed that ROCPs residues in grape and peach orchard soil had no effect on safety of agricultural products.
입제 농약 처리 후 토양 혼화깊이에 따른 상추 중 hexaconazole, thifluzamide 잔류량 비교
손경애(Kyeong-Ae Son),김찬섭(Chan Sub Kim),이은영(Eun Young Lee),이희동(Hee Dong Lee),박성은(Sung-eun Park),이지원(Ji-won Lee),김이선(Leesun Kim),박지호(Jiho Park),박정훤(Jeong-Hwon Park),김윤한(Yun-han Kim) 한국농약과학회 2021 농약과학회지 Vol.25 No.4
This study investigated how the tillage depth in soil affected the residue of hexaconazole and thifluzamide in lettuce for understanding the appropriate pesticide residue management of the soil and crops. Lettuce (Lactuca sativa) was planted after the granule type of combined pesticides were applied to the soil and two different depths of tillage (Method 1 and 2) were performed in the soil. The soil was slightly turned over in 5 cm depth in the method 1. The soil was completely turned over in 15 cm depth in the method 2. The residue concentrations in lettuce leaves harvested at 19 or 27 days after planting were 0.02-0.05 mg/kg in the method 1 and 0.01-0.05 mg/kg in the method 2 for hexaconazole and <0.01-0.02 mg/kg in the method 1 and in the method 2 for thifluzamide. The residue concentrations of hexaconazole in lettuce from the method 1 were statistically higher than those from the method 2, but it could not be determined whether the residual concentrations of thifluzamide in lettuce were different between the two methods. In the lower leaves of lettuce harvested at 27 days after planting, hexaconazole remained at a level of 0.04-0.06 mg/kg in the method 1 and 0.02 mg/kg in the method 2. Meanwhile, the residual level of thifluzamide was 0.01-0.04 mg/kg, and was below the limit of quantitation (0.01m g/kg) in method 2. The maximum concentration of hexaconazole (0.06 mg/kg) and thifluzamide (0.04 mg/kg) in the lower part of leaves were twice higher than the average residues in all the edible leaves. In conclusion, the results showed that residues in lettuce may have been affected by the differences of tillage depth.