Korean Journal of Environmental Agriculture最新文献_第3页

Cultivation and Characteristic Methods for DUS Test New Varieties of Actinidia arguta -Based on the Process of Writing the Manual- 基于《手册》编写过程的放线菌新品种培育和 DUS 试验特征方法

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.51

Mi-Yun An, Je-Min Park, Ro-Young Lee, Byeong-Hoon Yang, Ki-Yoon Kim

引用次数: 0

Growth Response of Strawberry Seedlings to Application of Solid Chlorella 草莓幼苗对施用固体小球藻的生长反应

Korean Journal of Environmental Agriculture Pub Date : 2023-12-31 DOI: 10.5338/kjea.2023.42.4.43

Young-Nam Kim, Jun Hyeok Choi, Hyeonji Choe, Keum-Ah Lee, Young-Eun Yoon, Vimalraj Kantharaj, Yong Bok Lee

引用次数: 0

Survey of Antibiotic Resistant Bacteria in Lake Gyeongpo, Korea 韩国景浦湖抗生素耐药菌调查

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.20

Dukki Han

{"title":"Survey of Antibiotic Resistant Bacteria in Lake Gyeongpo, Korea","authors":"Dukki Han","doi":"10.5338/kjea.2023.42.3.20","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.3.20","url":null,"abstract":"The emergence and spread of antibiotic-resistant bacteria have been increasing with anthropogenic contamination. Understanding the prevalence and distribution of these resistant bacteria in environments is crucial for effectively managing anthropogenic pollutants. Lake Gyeongpo in the Gangwon Province of South Korea is known for its diverse ecological features and human interactions. The lake is exposed to pollutants from non-point sources, including urban areas, agricultural practices, and recreational activities, which can introduce antibiotics and foster antibiotic resistance in bacteria. The present study investigates Lake Gyeongpo as a potential reservoir for antibiotic-resistant bacteria in a natural eco-system. A total of 203 bacterial isolates were collected from six sampling locations in Lake Gyeongpo during May, July, and November 2022. Most isolates were tax-onomically identified as Pseudoalteromonas , Bacillus , Shewanella , and Vibrio spp.; their abundance showed a spatiotemporal distribution. An antibiotic susceptibility test was conducted on 75 isolates using the disk diffusion method with six drugs according to the CLSI guideline; 42 isolates were resistant to one or more antibiotics. Among these, 15 isolates were identified as multi-drug resistant bacteria. This finding suggests the potential anthropogenic impact on Lake Gyeongpo and provides valuable insights into the dissemination of antibiotic resistance caused by anthropogenic pollutants.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136277015","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

Nutrient Balance during Crop (Forage Barley) Cultivation in Winter Season: A Weighing Lysimeter Study 作物(饲用大麦)冬季栽培过程中的营养平衡:称重渗滤仪研究

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.25

Jin-Hee An, Chan-Wook Lee, Jung-Hun Ok, Hye-Jin Pack, Yo-Sung Song, Ye-Jin Lee

{"title":"Nutrient Balance during Crop (Forage Barley) Cultivation in Winter Season: A Weighing Lysimeter Study","authors":"Jin-Hee An, Chan-Wook Lee, Jung-Hun Ok, Hye-Jin Pack, Yo-Sung Song, Ye-Jin Lee","doi":"10.5338/kjea.2023.42.3.25","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.3.25","url":null,"abstract":"Nutrient balance is an environmental indicator for assessing the potential of sustainable agriculture. Improving the use of arable land is crucial for reducing the nutrient balance. This study monitored soil water content, seepage water, crop growth, and nutrient balance in weighing lysimeters during forage barley ( Hordeum vulgare L., “Yeongyang”) cultivation from October to April. The study was conducted from 2020 to 2022, and the treatments included forage barley cultivation (clay loam, CL-FC; sandy loam, SL-FC) and bare soils. During the regeneration period (March to April), the soil moisture contents of bare and forage barley-cultivated soils were approximately 30-40% and 18.1-21.8%, respectively. The daily evapotranspiration of forage barley was 6.09 mm. The nitrogen balances for SL-FC and CL-FC were -0.43 to -2.93 g m -2 and -0.79 to 0.75 g m -2 , respectively, which can be attributed to the higher nutrient uptake of forage barley in SL-FC than in CL-FC. Consequently, the forage barley cultivation in SL-FC can potentially reduce nutrient leaching during the spring rainy season. Furthermore, nutrient balance can be reduced by cultivating forage crops during the winter season.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136277019","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

Influence of M.7 Apple Rootstock on Productivity and Fruit Quality of High Density ‘Fuji’, ‘Hongro’ and ‘Sansa’ Apple Trees M.7苹果砧木对高密度产量和果实品质的影响’富士’红柔&#8217和,# 8216;Sansa& # 8217;苹果树

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.28

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

引用次数: 0

Application Effect of Rendering Livestock Carcass-Based Carbonized Material in Chinese Cabbage Cultivation 畜禽尸体基炭化材料在大白菜栽培中的应用效果

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.21

Tae-Uk Jeong, Jae-Hoon Lee, Jun-Suk Rho, Dong Yeol Lee, Jeong-Min Lee, Jong-Hwan Park, Dong-Cheol Seo

{"title":"Application Effect of Rendering Livestock Carcass-Based Carbonized Material in Chinese Cabbage Cultivation","authors":"Tae-Uk Jeong, Jae-Hoon Lee, Jun-Suk Rho, Dong Yeol Lee, Jeong-Min Lee, Jong-Hwan Park, Dong-Cheol Seo","doi":"10.5338/kjea.2023.42.3.21","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.3.21","url":null,"abstract":"Rendering, is attracting attention as a technology that can stably and quickly process livestock carcasses. However, large amounts of livestock carcass solid residues are discharged in this process and limited methods are available for recycling them. In this study, rendered animal carcass solid residues were pyrolyzed to produce carbonized materials(350℃; RACR-C) and their chemical properties were investigated. Further, RACR-C were applied to cabbage cultivation for investigating their crop growth characteristics and soil improvement effects. RACR-C contained large amounts of fertilizer components such as nitrogen and phosphorus, and showed no toxic effects on the seedling growth of crops. The content of water-soluble nutrients released from RACR-C under the reaction time increased rapidly within 30 min, but was insignificant compared to the total content. Thus, most fertilizer components in RACR-C were not readily soluble in water. The optimal application amount for applying RACR-C to cabbage cultivation based on the changes in cabbage growth, inorganic content, and soil","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136277011","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

Column Comparison for the Separation of Ferimzone Z and E Stereoisomers and Development of Trace Residue Analysis Method in Brown Rice Using HPLC-MS/MS HPLC-MS/MS分离糙米中Ferimzone Z和E立体异构体的柱比较及痕量残留分析方法的建立

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.24

Mun-Ju Jeong, So-Hee Kim, Hye-Ran Eun, Ye-Jin Lee, Su-Min Kim, Jae-Woon Baek, Yoon-Hee Lee, Yongho Shin

引用次数: 0

Reduction of Hexavalent Chromium by Shewanella sp. HN-41 in the Presence of Ferric-Citrate 希瓦氏菌HN-41在柠檬酸铁存在下还原六价铬

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.29

Hyemin Park, Jin-Hyeob Kwak, Ji-Hoon Lee

{"title":"Reduction of Hexavalent Chromium by Shewanella sp. HN-41 in the Presence of Ferric-Citrate","authors":"Hyemin Park, Jin-Hyeob Kwak, Ji-Hoon Lee","doi":"10.5338/kjea.2023.42.3.29","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.3.29","url":null,"abstract":"In the environment, chromium often exists in a highly mobile and toxic form of Cr(VI). Therefore, the reduction of Cr(VI) to less toxic Cr(III) is considered an effective remediation strategy for Cr(VI)-contamination. In this study, the biological reduction of hexavalent chromium was examined at the concentrations of 0.01 mM, 0.1 mM, and 1 mM Cr(VI) by the dissimilatory metal-reducing bacterium, Shewanella sp. HN-41 in the presence of ferric-citrate. With the relatively condensed cell densities, the aqueous phase Cr(VI) was reduced at the proportions of 42%, 23%, and 31%, respectively for the 0.01 mM, 0.1 mM, and 1 mM Cr(VI) incubations, while Fe(III)-citrate was reduced at 95%, 88%, and 73%, respectively. Although the strain HN-41 was not considered to reduce Cr(VI) as the sole electron acceptor for anaerobic metabolism in the preliminary experiment, it has been presumed that outer-membrane c-type cytochromes such as MtrC and OmcA reduced Cr(VI) in the presence of ferric-citrate as the electron acceptor. Since this study indicated the potential of relatively high cell density for Cr(VI) reduction, it might propose a bio-remediation strategy for Cr(VI) removal from contaminated waters using engineered systems such as bioreactors employing high cell growths.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136277017","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

Sorption Characteristics of Procymidone and 3,5-Dichloroaniline on Microplastic Films 原胺酮和3,5-二氯苯胺在微塑料薄膜上的吸附特性

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.22

Ji Won Yang, Youn-Jun Lee, Eun Hea Jho

{"title":"Sorption Characteristics of Procymidone and 3,5-Dichloroaniline on Microplastic Films","authors":"Ji Won Yang, Youn-Jun Lee, Eun Hea Jho","doi":"10.5338/kjea.2023.42.3.22","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.3.22","url":null,"abstract":"Microplastics are generated by the breakdown of plastic wastes in agricultural soil and residual pesticides in agricultural soil can adsorb on microplastics. In this study, the sorption characteristics of procymidone (PCM) and one of its metabolites, 3,5-dichloroaniline (DCA), on low-density polyethylene (LDPE) and polyvinyl chloride (PVC) microplastics were investigated. The sorption and desorption tests were carried out for 72 h using LDPE or PVC microplastic films to study the sorption isotherms of PCM and DCA and kinetics for sorption and desorption of PCM. The results show that the sorption data of PCM and DCA were better described by the Freundlich isotherm model (R 2 =0.7568-0.9915) than the Langmuir isotherm model (R 2 =0.0545-0.5889). The sorption potential of PVC for both PCM and DCA was greater than that of LDPE. The sorption data of PCM on PVC and LDPE were fitted better to the pseudo-sec-ond-order kinetic model than the pseudo-first-order kinetic model. The PCM sorption on LDPE was about three times faster than that on PVC. Both microplastic films released the sorbed PCM back to water, and more PCM was released from PVC than LDPE, but the desorption rate was faster with LDPE than PVC. Overall, the results show that different microplastics have different sorption characteristics for different chemicals. Also, the sorbed chemicals can be released back to environment suggesting the potential of contaminant spread by microplastics. Thus, the management practices of microplastics in agricultural soil need to consider their interaction with the chemical contaminants in soil.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136247908","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: 1

Residue Monitoring and Dietary Risk Evaluation of Fungicide Propiconazole in Leafy Vegetables under Greenhouse Conditions 温室条件下叶菜中杀菌剂丙环唑残留监测及膳食风险评价

Korean Journal of Environmental Agriculture Pub Date : 2023-09-30 DOI: 10.5338/kjea.2023.42.3.23

Lawal Abdulkareem, Ji-Eun Oh, Se-Yeon Kwak, Sang-Hyeob Lee, Jae-Won Choi, Aniruddha Sarker, Kee Sung Kyung, Tae Hwa Kim, Jang-Eok Kim

引用次数: 0