Korean Journal of Environmental Agriculture最新文献

Mass Cultivation of Rhodococcus sp. 3-2, a Carbendazim-Degrading Microorganism, and Development of Microbial Agents 多菌灵降解微生物 Rhodococcus sp.

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.30

Jun-Kyung Park, Seonghun Im, Jeong Won Kim, Jung-Hwan Ji, Kong-Min Kim, Haeseong Park, Yeong-Seok Yoon, H. Weon, Gui Hwan Han

{"title":"Mass Cultivation of Rhodococcus sp. 3-2, a Carbendazim-Degrading Microorganism, and Development of Microbial Agents","authors":"Jun-Kyung Park, Seonghun Im, Jeong Won Kim, Jung-Hwan Ji, Kong-Min Kim, Haeseong Park, Yeong-Seok Yoon, H. Weon, Gui Hwan Han","doi":"10.5338/kjea.2023.42.4.30","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.4.30","url":null,"abstract":"Rhodococcus sp. 3-2 strain has been reported to degrade benzimidazole-based pesticides, such as benomyl and carbendazim. Therefore, this study aimed to optimize culture medium composition and culture conditions to achieve cost-effective and efficient large-scale production of the Rhodococcus sp. 3-2 strain. The study identified that the optimal media composition for mass culture comprised 0.5% glucose, 0.5% yeast extract, 0.15% NaCl, 0.5% K 2 HPO 4 , 0.5% sodium succinate, and 0.1% MgSO 4 . Additionally, a microbial agent was developed using a 1.5-ton fermenter, with skim milk (20%), mon-osodium glutamate (15%), and vitamin C (2%) as key components. The storage stability of the microbial agent has been confirmed, with advantages of low temperature conservation, which helps to sustain efficacy for at least six months. We also assessed the benomyl degradation activity of the microbial agent within field soil. The results revealed an over 90% degradation rate when the concentration of viable cells exceeded 2.65 × 10 6 CFU/g after a minimum of five weeks had elapsed.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139131904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental Control in the Plant Factory System Influences Year-Round Production of Allium hookeri Leaves 植物工厂系统的环境控制影响钩吻薤叶的全年产量

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.32

Jeong-Wook Heo, Jeonghyun Baek, Sung-Hyen Lee, Min-Jeong Kim, Chang-Kee Shim

引用次数: 0

Development of Gaseous Pollutant Emission Factor by Incineration of Barley & Wheat among Agricultural Residues 焚烧农业残留物中的大麦和小麦所产生的气体污染物排放因子的开发

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.50

Min-Wook Kim, Joon-Young Roh, Ji-Yun Woo, Dong-Eun Lee, Hong-Sung Chang, Seung-Jin Kim

引用次数: 0

Influence of the Exposed Length of Rootstock on Vegetative Growth and Productivity of ‘Sansa’ Apple Trees Grafted on M.7 or M.9 砧木暴露长度对嫁接在 M.7 或 M.9 上的 "Sansa "苹果树植株生长和产量的影响

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.34

Young-Soon Kwon, Jeong-Hee Kim, Dong-Hoon Sagong, Jong-Taek Park

{"title":"Influence of the Exposed Length of Rootstock on Vegetative Growth and Productivity of ‘Sansa’ Apple Trees Grafted on M.7 or M.9","authors":"Young-Soon Kwon, Jeong-Hee Kim, Dong-Hoon Sagong, Jong-Taek Park","doi":"10.5338/kjea.2023.42.4.34","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.4.34","url":null,"abstract":"M.7 rootstock is moderately resistant to fire blight. However, M.7 is generally too vigorous for high-density apple systems, but it can be grafted onto cultivars that exhibit weak tree growth, such as ‘Sansa’. This study investigated the vegetative growth, yield, and fruit quality of ‘Sansa’ apple trees grafted on M.7 or M.9 root-stocks to assess the feasibility of establishing domestic high-density apple systems using M.7 and to determine the optimum exposure length for rootstocks. Trees were planted with exposed rootstock lengths of 5, 10, and 15 cm. The vegetative growth of apple trees grafted onto M.7 was greater than that of M.9 and vegetative growth tended to decrease as the exposed length of root-stock increased. However, the differences in yield per tree, average weights, soluble solids contents, and titrat-able acidity due to the rootstock and its exposure length varied. The accumulated yield over a 10 year period and the yield efficiency of M.7 were lower than that of M.9 and the yield efficiency tended to decrease as the exposed length of rootstock increased. When apple trees were grafted onto M.9, biennial bearing and tree vigor weakening occurred if the exposed length of the root-stock was over 10 cm. Conversely, when apple trees were grafted onto M.7, vegetative growth was excessive if the exposed length of rootstock was below 10 cm. Based on the results from this study, the optimum M.7 and M.9 exposure lengths for ‘Sansa’ were 15 cm and 5 cm, respectively.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139135300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in the Growth and Quality of Creeping Bentgrass (Agrostis palustris Huds. ‘Penn A1’) Following Gibberelinic Acid (GA3) Treatment Gibberelinic Acid (GA3) 处理后匍匐翦股颖（Agrostis palustris Huds.

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.44

Woo-Sung Kim, Tae-Wooung Kim, Young-Sun Kim, Chi-Hwan Lim

引用次数: 0

Growth Response of Lettuce after Application of Mixed Organic Fertilizer Containing Bacillus amyloliquefaciens HSOB-7 and Saccharomyces cerevisiae HSOB-8 施用含淀粉芽孢杆菌 HSOB-7 和酿酒酵母 HSOB-8 的混合有机肥后生菜的生长反应

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.38

Young-Sun Kim, Jong-Jin Lee, Sung-Hyun Cho

引用次数: 0

Effectiveness of Plant-Based Attractants in Preventing the Escape of Golden Apple Snails (Pomacea canaliculata) into the Ecosystem 植物性引诱剂在防止金苹果蜗牛（Pomacea canaliculata）逃逸到生态系统中的效果

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.42

Il Kyu Cho, So-Young Jang, Woo Young Cho, Yun-Su Jeong, Jun Seok Kim, Seong Eun Han, Kil Yong Kim, Gi-Woo Hyoung

{"title":"Effectiveness of Plant-Based Attractants in Preventing the Escape of Golden Apple Snails (Pomacea canaliculata) into the Ecosystem","authors":"Il Kyu Cho, So-Young Jang, Woo Young Cho, Yun-Su Jeong, Jun Seok Kim, Seong Eun Han, Kil Yong Kim, Gi-Woo Hyoung","doi":"10.5338/kjea.2023.42.4.42","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.4.42","url":null,"abstract":"The effectiveness of plant-based attractants was studied using large traps, which attracted relatively more snails in agricultural water drainage ditches and rice-cultivating environments, although their effectiveness in rice fields and lakes was limited. The rate began to rise after three hours of observation. Watermelon peel exhibited the highest apple snail attraction rate (13.8%), followed by potatoes (10.0%), and apple peel (8.8%). These values significantly differed from the attraction rate attributed to papaya leaves (F=3.84; P=0.0387). After 24 h, water-melon peel and apple peel indicated a higher rate of attraction (23.4% and 21.7%, respectively), which were significantly different compared with those of papaya leaves and potatoes (F=9.94; P=0.00455). Large bait traps out-performed funnel traps in capturing golden apple snails and trapped a significant number of snails measuring over 1 cm in size. Watermelon peel was the most effective at-tractant for a large bait trap, followed by apple peel, potatoes, and papaya leaves. On average, 110 snails were captured in the lure net. However, potatoes, apple peels, and papaya leaves caught an average of 93, 80, and 79 snails, respectively. Among the attractants, the lure effect of the snails was not significantly different. The efficiency of","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139135827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Application of Rendered Carcass Residue on Greenhouse Gases and Pepper Growth 施用腐肉残渣对温室气体和辣椒生长的影响

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.52

Jae-Hyuk Park, Dong-Wook Kim, Se-won Kang, J. Cho

{"title":"Effects of Application of Rendered Carcass Residue on Greenhouse Gases and Pepper Growth","authors":"Jae-Hyuk Park, Dong-Wook Kim, Se-won Kang, J. Cho","doi":"10.5338/kjea.2023.42.4.52","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.4.52","url":null,"abstract":"The rendering residue generated by rendering disposal, an eco-friendly livestock carcass disposal method, is a useful agricultural resource. Methods for recycling this are being actively researched, and this study investigated the impact of applying rendered residue directly to soil on crop productivity and the agricultural environment. The chemical properties of the rendering residue were examined. The pH, OM, T-N, T-P, CaO, K 2 O, and MgO content values were 5.47%, 59.8%, 9.22%, 2.96%, 2.16%, 0.51% and 0.10%, respectively. Treatment conditions were divided into control, inorganic fertilizer, and rendering residue, and rendering residue corresponding to 50, 100, and 200% nitrogen content was applied based on the amount of inorganic fertilizer nitrogen input. Greenhouse gases and ammonia were collected during the cultivation period. Rendering residue increased both the yield and growth of peppers and was effective in improving nutrients such as pH and OM of the soil after harvest. However, compared to inorganic fertilizer treatment, it increased emissions of nitrous oxide and methane as well as ammonia. It is judged that the direct agricultural use of rendering residue is difficult, and a utilization method is needed.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139130225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seed Dormancy and Germination Characteristics of Prunus mandshurica (Maxim.) Koehne Prunus mandshurica (Maxim.) Koehne 的种子休眠和发芽特性

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.36

S. Yang, Y. Kwon, Ye Eun Kim, Chung Ho Ko, Seung Youn Lee, Y. Rhie

引用次数: 0

Plasmid Sequence Data Analysis to Investigate Antibiotic Resistance Gene Transfer among Swine, Swine Farm and Their Owners 通过质粒序列数据分析调查猪、猪场及其所有者之间的抗生素耐药基因转移情况

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.31

Yujin Jeong, Sunwoo Lee, Jung Sik Yoo, Dong-Hun Lee, Tatsuya Unno

{"title":"Plasmid Sequence Data Analysis to Investigate Antibiotic Resistance Gene Transfer among Swine, Swine Farm and Their Owners","authors":"Yujin Jeong, Sunwoo Lee, Jung Sik Yoo, Dong-Hun Lee, Tatsuya Unno","doi":"10.5338/kjea.2023.42.4.31","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.4.31","url":null,"abstract":"Antibiotics either kill or inhibit the growth of bacteria. However, antibiotic-resistant bacteria are difficult to treat with antibiotics. Infections caused by such bacteria often lead to severe diseases. Antibiotic resistance genes (ARG) can be horizontally transmitted across different bacterial species, necessitating a comprehensive understanding of how ARGs spread across various environments. In this study, we analyzed the plasmid sequences of 33 extended-spectrum beta-lactamases (ESBL) producing Escherichia coli isolated from pigs, farms, and their owners. We conducted an antibiotic susceptibility test (AST) with aztreonam and seven other antibiotics, as well as whole genome sequencing (WGS) of the strains using MinION. Our results demonstrated that the plasmids that did not harbor ARGs were mostly non-conjugative, whereas the plasmids that harbored ARGs were conjugative. The arrangement of these ARGs exhibited a pattern of organization featuring a series of ARG cassettes, some of which were identical across the isolates collected from different sources. Therefore, this study suggests that the sets of ARG cassettes on plasmids were mostly shared between pigs and their owners. Hence, enhanced surveillance of ARG should be im*","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139131930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0