Journal of Developments in Sustainable Agriculture最新文献

{"title":"Toward Sustainable Agriculture through Integrated 'OMICS' Technologies : A Quest for Future Global Food Security","authors":"A. Sarkar, S. B. Agrawal, R. Rakwal, J. Shibato, G. Agrawal","doi":"10.11178/JDSA.7.103","DOIUrl":"https://doi.org/10.11178/JDSA.7.103","url":null,"abstract":"","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133258720","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}

{"title":"Nigerian Universities and Agriculture: Their Role in the Development of Agriculture for Sustainable Food Security","authors":"B. Okolo","doi":"10.11178/JDSA.5.23","DOIUrl":"https://doi.org/10.11178/JDSA.5.23","url":null,"abstract":"Food insecurity a ects proportionally more people in Africa than in any other region of the world. The incidence of food insecurity is greater in sub-Saharan Africa than in other regions of Africa. Nigeria is still far from achieving food security. Most food consumed in Nigeria is still produced by small-scale or household farmers who, in most cases, lack the know-how and resources to use modern techniques and procure the necessary farm inputs for maximum yields. Thus, their productivity remains very low. Nigerian universities have been actively involved in agricultural research and development and in training and extension services. The Nigerian Government has established agricultural universities whose primary objective is to tackle food security problems in Nigeria and beyond. However, the response to this challenge is constrained by inadequate research and training facilities. This paper expounds on the impacts and challenges confronting Nigerian universities in addressing food security in Nigeria in the context of the important role of university education in maintaining food security, and in the light of the changing needs of developing economies. It proposes, among other things, that increased collaboration between Nigerian universities and their counterparts in more developed countries will help Nigeria in its quest to achieve food security. A substantial percentage of foreign aid should be used to support developing sustainable agriculture through funding of agricultural research and training.","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133890313","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}

{"title":"Production Efficiency and Building Marketing Strategies for Smallholder Tomato Farmers in the Adaklu Anyigbe District of Ghana: Linear Programming and Parametric Linear Programming Approach","authors":"Theresa Akuba Anasa Nyamekye","doi":"10.11178/JDSA.6.230","DOIUrl":"https://doi.org/10.11178/JDSA.6.230","url":null,"abstract":"","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133905629","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}

{"title":"Assessment of Public Perception, Awareness and Knowledge on Genetically Engineered Food Crops and their Products in Trans-Nzoia County, Kenya","authors":"K. Kagai","doi":"10.11178/JDSA.6.164","DOIUrl":"https://doi.org/10.11178/JDSA.6.164","url":null,"abstract":"Biotechnology has been widely acknowledged as a modern tool that holds the potential to improve agricultural production. Adoption of genetically modified (GM) crops could contribute toward alleviating food insecurity in Kenya, but the attitudes and perceptions of stakeholders are crucial to the acceptance of GM products. The aim of this study was to assess public perceptions of GM crops and foods in Trans-Nzoia County, Kenya. A semi-structured questionnaire survey was conducted with 179 respondents, including 55 farmers and 124 consumers, in both rural and urban areas. The results were analyzed to determine predictors for the willingness to produce and consume GM crops and food products. Farmers’ and consumers’ perceptions influenced their approval of the use of GM technology. The results indicate that gender, basic knowledge of GM technology, and information access and dissemination are likely to influence the adoption of GM technology by farmers. Consumers who are familiar with government policy and have basic knowledge and share information on GM crops are more likely to approve of the technology than those who do not. Farmers were concerned with the environmental risks associated with GM technology and its possible effect on marketing crops both locally and abroad. Consumers expressed concerns about possible health risks, the ability of the government to protect them, and the acceptance of GM products in the local market. Disapproval of GM products by both farmers and consumers was influenced by the perception of high risks and low benefits. The findings of this study can help policymakers when designing public awareness and risk-communication strategies targeting farmers and consumers to address potential concerns when promoting the use of GM technology.","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115775886","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}

{"title":"Nematode Community Structure Changes in Relation to Tillage Systems and Cover Crop Management in Field Rice Cultivation","authors":"Takahiro Ito","doi":"10.11178/JDSA.10.121","DOIUrl":"https://doi.org/10.11178/JDSA.10.121","url":null,"abstract":"","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121994701","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}

{"title":"Consumer Preference and Potential Demand for Organic Products: A Case Study in Makassar, South Sulawesi, Indonesia","authors":"Ferdi","doi":"10.11178/JDSA.3.160","DOIUrl":"https://doi.org/10.11178/JDSA.3.160","url":null,"abstract":"","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131789386","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}

{"title":"Comparative Study on the Growth and Yield of NERICA Cultivated with Organic and Inorganic Fertilizers: Participatory On-Farm Research at Marakwet District in Kenya","authors":"Daniel Mwangangi Kinyumu","doi":"10.11178/JDSA.4.106","DOIUrl":"https://doi.org/10.11178/JDSA.4.106","url":null,"abstract":"A participatory field study was conducted in Tunyo division, Marakwet district, Kenya, to investigate whether there would be a significant response of New Rice for Africa (NERICA) cultivars 1 and 4 to farmyard manure and chemical fertilizers. Seeds were directly sown in 2 m X 5 m plots at a depth of 2-3 cm and a spacing of 30 em X 1.5 cm. The treatments included chemical fertilizer, organic fertilizer (farmyard manure), and control (no fertilizer). In the chemical fertilizer treatment, 2.5 g N m2 was applied as compound fertilizer N: P: K (20: 12: 12) as basal fertilizer at planting, and 2.5 g N m- 2 using urea (46: 0: 0) as topdressing at panicle initiation stage. In the organic fertilizer treatment, 10.6g N m2 from farmyard manure (N-0.53%, P-0.62%, K-1.35%) obtained from cattle droppings was applied at planting. The experiment was conducted in two farmers' fields using split plot design with two replicates. Data on days to seed emergence, panicle initiation, heading, flowering and maturity were collected. Plant height and tiller number data were recorded during vegetative growth stage. At harvest, panicle number, panicle length, grain number per panicle, weight of 1,000 grains and paddy yield were measured. Growth pattern, fertilizer response, and post harvest qualities of NEIRCA were evaluated by farmers by means of questionnaires and interviews. Focus group discussions to clarify on farmers' responses were held. Yield increased significantly with fertilizer application, and the yield of NERICA 4 was significantly higher than that of NERICA 1, irrespective of the treatment. Farmers evaluated NERICA 1 as having excellent tillering ability, excellent response to fertilizers, good growth vigor as measured by height and yield, excellent threshability and aroma, very good milling quality, and good eating qualities. Farmers also assessed NERICA 4 as having excellent tillering ability, excellent response to fertilizers, excellent growth vigor, excellent yield, excellent threshability and taste, very good milling properties, and good eating qualities. NERICA 4 performed as well as or better than NERICA 1 in most attributes evaluated in this research. NERICA 1 was preferred for its aroma, while NERICA 4 earned the overall preference by farmer for cultivation owing to its superior yield. This research showed that the participation of farmers in field research strengthens the research-extension-farmer linkage, which could be expected to lead to faster technology transfer and uptake of new farming practices in Kenya.","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130460071","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}

{"title":"Analysis of Microbial Activity and Community Structure in Organically and Chemically Fertilized Soils","authors":"George Kunkwenzu","doi":"10.11178/JDSA.3.172","DOIUrl":"https://doi.org/10.11178/JDSA.3.172","url":null,"abstract":"The aim of this research was to observe di erences in beta-glucosidase activity and changes in the community structure of soil microbes in chemically and organically fertilized soils. Beta-glucosidase is one of the most important enzymes produced by soil microbes because it plays a key role in the decomposition of cellulose debris added to soil as fertilizer. A soil rich in bacterial diversity is stable and suitable for optimal plant growth. Soils with very low nitrogen and carbon content were examined under natural weather conditions in Japan. Significant di erences ( . ) were observed in beta-glucosidase activity between the di erent treatments as measured by colorimetric analysis. Beta-glucosidase activity increased in all pots but at di erent rates. After days, composted manure (treatment ) and the combination of chemical and fertilizers and composted manure (treatment ) showed the highest and second highest levels of beta-glucosidase activity, respectively. Treatment showed higher beta-glucosidase activity as compared to treatment and higher beta-glucosidase activity as compared to treatments and (control). The community structure of the soil bacteria was assayed by the PCR-denaturing gradient gel electrophoresis (PCR-DGGE) technique. We captured the banding pattern of soil microbes on the gel images following DGGE of PCR-amplified S rDNA using the F and R primers. Although the gross trend was the same, the four di erent treatments showed di erences in the DNA banding pattern, suggesting di erences in the soil bacterial species community structure among the four di erent soil treatments. Treatment with chemical fertilizers gave a few intense bands, whereas treatment with composted manure and treatment with a combination of chemical fertilizer and composted manure yielded more bands that were less intense. These findings suggest that chemical fertilizers promote the colonization of specific dominant bacterial species, whereas composted manure promotes diversity in the soil bacterial population. Principal component analysis confirmed that the treatment , and results varied markedly from the treatment , control results. We conclude that exclusive use of chemical fertilizers in soils with low or moderate carbon levels would lead to low betaglucosidase activity and a reduction in the diversity of the soil microbe community structure. Low betaglucosidase activity and reduced soil bacterial diversity might be detrimental to the condition of the soil and lead to an increase in the soil’s postharvest recovery period and a reduction in the preseason decomposition rate of plant residues in the soil.","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116608514","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}

{"title":"Effects of Previous Rice Cropping History on Salt Accumulation of Surface Soils in the Middle Nile Delta, Egypt","authors":"Yoshie Yageta, T. Higashi, Z. A. Bassiouni, Naeem El Sayed Saad, M. Satoh","doi":"10.11178/JDSA.8.119","DOIUrl":"https://doi.org/10.11178/JDSA.8.119","url":null,"abstract":"","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"31 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120972835","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}

{"title":"Problem Structure Analysis of Irrigation Systems in the Upper West Region of Ghana","authors":"Nana Baah Appiah-Nkansah","doi":"10.11178/JDSA.4.93","DOIUrl":"https://doi.org/10.11178/JDSA.4.93","url":null,"abstract":"Ghana’s agricultural sector is heavily dependent on rainfall, but the rainfall pattern is erratic, making the sector a high-risk venture for many investors. The Upper West Region annually experiences a short rainy season and a relatively long dry season (i.e., October to April). Irrigation is therefore essential for enhancement of agricultural production. A number of earth embankments have been constructed as dams and dugouts have been excavated throughout the region to create water reservoirs for irrigation, especially for dry season farming. However, the irrigation facilities are beset with problems. This paper presents a problem structure analysis of the irrigation systems in the region with the aim of proposing a feasible and sustainable scheme of irrigation","PeriodicalId":386623,"journal":{"name":"Journal of Developments in Sustainable Agriculture","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121056988","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}