Vietnam Journal of Agricultural sciences最新文献

The Roles of Perennial Crop Systems to Rural Households: A Case Study in Dak Lak Province, Central Highlands, Vietnam 多年生作物系统对农户的作用:以越南中部高原达克省为例

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.07

Phan Thi Thuy, Vo Xuan Hoi, Le The Thiet, Nguyen Ngoc Thang, Le Duc Niem, Philippe Lebailly

引用次数: 0

Coping Strategies of Households in Lao Cai Province in Dealing with Risks in Tea Cultivation 老蔡省农户茶业风险应对策略研究

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.06

Nguyen Thi Thu Quynh

引用次数: 0

Linear or Circular Economy: A Review of Theories, Practices, and Policy Recommendations for Vietnam 线性经济还是循环经济:越南的理论、实践和政策建议综述

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.02

Do Kim Chung, Nguyen Phuong Le

{"title":"Linear or Circular Economy: A Review of Theories, Practices, and Policy Recommendations for Vietnam","authors":"Do Kim Chung, Nguyen Phuong Le","doi":"10.31817/vjas.2023.6.3.02","DOIUrl":"https://doi.org/10.31817/vjas.2023.6.3.02","url":null,"abstract":"The traditional linear economy has created unstainable development. A circular economy (CE) is considered as a crucial means and has been adapted by many governments to achieve sustainable development goals. By narrative literature review, this article aims to discuss the concepts of linear and circular economies and CE models, examine countries’ CE development experiences, and make recommendations for successfully adapting a CE. The findings show that a CE is different from a linear one in terms of the step plan, focus, system boundaries, reuse, and business models. The CE model includes slowing and closing resource loops and a narrowing of resource flows and is based on the foundation of renewable and non-toxic resources as well as through long-lasting design, and reducing, maintaining, repairing, reusing, remanufacturing, refurbishing, recovering, and recycling. Many countries around the world have adapted a CE model with different circularity levels with the main focus to reduce waste. The paper also recommends that a CE should be percieved as the central point of socio-economic development programs and policies that must address the full cycle, from product design to production processes, consumption, and recycling rather than having only a waste reduction focus. Producers should use a CE framework as the basis for product design, manufacturing, and recycling strategies. Consumers should change their perception of CE and adjust their behaviors towards making decisions to buy and consume toward circularity. Also, there is a need to change the perceptions of policy makers and other stakeholders on the CE concepts and framework.","PeriodicalId":485341,"journal":{"name":"Vietnam Journal of Agricultural sciences","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135295554","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

Traditional and Modern Distribution Channels for Vegetables in Vietnam: A Case Study in Hanoi City 越南传统与现代蔬菜流通渠道:以河内市为例

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.03

Nguyen Thi Kim Oanh, Doan Thi Ngoc Thuy, Nguyen Thi Thu Trang

{"title":"Traditional and Modern Distribution Channels for Vegetables in Vietnam: A Case Study in Hanoi City","authors":"Nguyen Thi Kim Oanh, Doan Thi Ngoc Thuy, Nguyen Thi Thu Trang","doi":"10.31817/vjas.2023.6.3.03","DOIUrl":"https://doi.org/10.31817/vjas.2023.6.3.03","url":null,"abstract":"This study aimed to provide a clear overview of the vegetable distribution system in Hanoi city which is dominated by traditional combined with the emergence of modern distribution channels, including supermarkets. The analysis was based on secondary data sources, a primary survey among 60 vegetable farmers, and in-depth interviews with other marketing system stakeholders including two agribusiness farms, four agricultural cooperatives, trade intermediaries (five collectors, three wholesalers, and three trading companies), and three supermarkets. Comparative and descriptive statistics were applied to get the full picture of vegetable distribution system, including traditional and modern channels. While traditional distribution channels involved various intermediaries, supermarket channels tended to be shorter due to direct producer-buyer relationships. In addition, while supermarket distribution channels focused on safe vegetables, including VietGAP and organic certified vegetables, there was no difference between safe and conventional vegetables in traditional channels. Therefore, producers may get 50% higher prices when supplying supermarkets compared to traditional channels. Recommended solutions to strengthen the distribution system of vegetables are to encourage the development of agricultural cooperatives, raise vertical integration, and develop sustainable cooperation among stakeholders in the supply chain.","PeriodicalId":485341,"journal":{"name":"Vietnam Journal of Agricultural sciences","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135295562","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

Azolla Fertilizer as an Alternative Organic Nitrogen Source for Malabar Spinach Production 氮硝肥在马拉巴菠菜生产中的替代有机氮源研究

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.01

Vu Duy Hoang, Nguyen Thi Thu Hien, Tran Van Quang

{"title":"Azolla Fertilizer as an Alternative Organic Nitrogen Source for Malabar Spinach Production","authors":"Vu Duy Hoang, Nguyen Thi Thu Hien, Tran Van Quang","doi":"10.31817/vjas.2023.6.3.01","DOIUrl":"https://doi.org/10.31817/vjas.2023.6.3.01","url":null,"abstract":"The spread of organic farming has led to the need for identifying alternative sources of high-quality organic fertilizer. Azolla is a genus of floating aquatic ferns which has high nitrogen and organic matter content due to its fast growth and symbiotic relationship with nitrogen-fixing bacteria (Anabaena-azollae). However, little research has been done on the use of Azolla as an organic fertilizer for vegetable production. The study evaluated the effects of different levels of Azolla fertilizer on the growth and yield of Malabar spinach (Basella alba). The experiment included 6 treatments: Without application – as a control (T1); 1 ton ha-1 soybean meal (T2); 16 tons ha-1 cow manure (T3); 12 tons ha-1 Azolla fertilizer (T4); 16 tons ha-1 Azolla fertilizer (T5); and 20 tons ha-1 Azolla fertilizer (T6). The results showed that the application of Azolla fertilizer significantly increased shoot length, number of leaves, leaf size, dry matter, leaf area index (LAI), and SPAD of Malabar spinach compared to the control or cow manure. The application of Azolla fertilizer at the rates of 12, 16, and 20 tons ha-1 significantly increased the yield of Malabar spinach by 150, 192, and 205%, respectively, compared to the control; and by 37, 60, and 67%, respectively, compared to the cow manure treatment. Yields and parameters of harvested vegetables were the highest in treatments with 16 to 20 tons ha-1 Azolla fertilizer. The results suggest that Azolla fertilizer can be used as an alternative organic nitrogen source in organic vegetable production.","PeriodicalId":485341,"journal":{"name":"Vietnam Journal of Agricultural sciences","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135295563","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

Product Flow and Challenges in the Pomelo (Citrus maxima) Industry in Northern Mindanao, Philippines 菲律宾棉兰老岛北部柚子(Citrus maxima)产业的产品流程和挑战

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.05

Karen Debbie Jabenar Cosrojas, Gretchen G. Abao, Analou D. Piquero

{"title":"Product Flow and Challenges in the Pomelo (Citrus maxima) Industry in Northern Mindanao, Philippines","authors":"Karen Debbie Jabenar Cosrojas, Gretchen G. Abao, Analou D. Piquero","doi":"10.31817/vjas.2023.6.3.05","DOIUrl":"https://doi.org/10.31817/vjas.2023.6.3.05","url":null,"abstract":"The high demand for Davao pomelo and its suitability to the local climate in the Philippines have given rise to expansion potentials and provided possibilities in curbing poverty levels in the agricultural sector of the region. In order to design intervention projects and policies, the present study investigated the pomelo industry in Northern Mindanao covering specifically the product flow and challenges in the industry. The study area was four provinces of Northern Mindanao, namely Bukidnon, Lanao del Norte, Misamis Occidental, and Misamis Oriental. The data were gathered using a semi-structured questionnaire with 22 respondents composed of 9 pomelo producers and 13 traders. The majority of the pomelo products that were sold in the markets in Northern Mindanao come from outside the region, such as Davao and Cotabato provinces, while pomelo produced in the region were sold outside the region. Among the three marketing chains of pomelo, the producer to consumer is considered the most efficient chain based on the estimated losses. Challenges in the pomelo industry include the lack of technical knowledge among the producers, poor quality of the pomelo, high buying price, and information asymmetry. Improvement in the industry could be enhanced by addressing the challenges identified.","PeriodicalId":485341,"journal":{"name":"Vietnam Journal of Agricultural sciences","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135295561","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

Elasticities of Chinese Demand for Imports of Melons from Vietnam and Myanmar 中国对越南和缅甸甜瓜进口需求的弹性

Vietnam Journal of Agricultural sciences Pub Date : 2023-09-29 DOI: 10.31817/vjas.2023.6.3.04

Wuit Yi Lwin, Shida R. Henneberry, B. Wade Brorsen, Jon T. Biermacher

{"title":"Elasticities of Chinese Demand for Imports of Melons from Vietnam and Myanmar","authors":"Wuit Yi Lwin, Shida R. Henneberry, B. Wade Brorsen, Jon T. Biermacher","doi":"10.31817/vjas.2023.6.3.04","DOIUrl":"https://doi.org/10.31817/vjas.2023.6.3.04","url":null,"abstract":"Vietnam and Myanmar are major exporters of melons (Citrullus lanatus) to China. Among all fresh fruits, melons account for Myanmar’s and Vietnam’s largest export volume and values. Over 90% of Myanmar’s melons are exported via border trade, primarily to China. Measuring the own- and cross-price elasticities of imported melons into China that come from Vietnam and Myanmar can help each exporter understand the market potential for their melons. The objective of the study was to estimate the own- and cross-price elasticities of imported melons into China differentiated by exporting country. The demand system of imported melons into China was estimated using a source-differentiated Linear Approximation of the Almost Ideal Demand System (LA-AIDS). The results suggest that imported melons are weakly separable from other imported fruits. While melons from Vietnam and Myanmar are substitutes for each other, the price of melons from the rest of the world (ROW) did not have a significant effect on China’s imports of melons from Vietnam or Myanmar. The estimated coefficients from the seasonal dummy variables included in the demand equations show little seasonality in the market shares of Vietnam, Myanmar, and the ROW for melon imports to China.","PeriodicalId":485341,"journal":{"name":"Vietnam Journal of Agricultural sciences","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135296283","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