Farming systems in Bangladesh are characterised by a mixed culture of crop, livestock, poultry, fish and agro forestry sub systems of agricultural enterprise. Low productivity and inefficient resource use are the main constraints to farming in Bangladesh. It is necessary to improve the performance of all enterprises in existing farming systems which depends on the proper utilisation of the existing level of resources. The overall objective of this study was to evaluate the alternative farming systems in terms of income and gender participation. To achieve the objectives, a study was conducted in four villages of Kaliakair Upazilla in the Gazipur district of Bangladesh. Thirty sample farmers were selected randomly from four dominant farming systems.Gender roles in farming systems were assessed in consideration to time spent in agricultural activities.In addition, time spent in household activities was also calculated. The conclusion is that there is no one right choice of selecting farming systems. / Master of Science (Hons.)

Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 5 uppsatser.

Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniversitet, 2009. / Härtill 4 uppsatser.

Hong Kong’s agricultural sector has been declining since the 1980s with the reduction in area of arable lands and number of farmers. The trend of over-reliance on imported produce is likely to continue with population growth in the upcoming decades. The climbing imported to locally grown food ratio might aggravate climate change. Vertical farming, which is promoted in recent years as a more sustainable mode of farming than conventional cultivation, is investigated mainly in terms of life cycle Greenhouse gases (GHG) emissions of its produce. Assessment was carried out following the guidelines in two relevant sets of Publicly Available Specification (PAS). Lettuce variety “Heading European”, which is among the most popular leafy vegetables in Hong Kong, is chosen because of its significant share imported from Guangdong Province. Three sets of surveys have been conducted to find out if locally grown produce generates less GHG than imported one. The sustainability of vertical farming is also evaluated. It performs in a cradle-to-gate basis in which life cycle of the lettuce is assessed from the stage of farmland preparation to delivery of them to Vegetable Marketing Organization (VMO). The results of life cycle GHG evaluation show that produce of local farm generates fewer amounts of GHGs than the imported one. For lettuces imported from the conventional farm in Songyuancun, Guangdong Province, it generates approximately 1.57E+00kg of carbon dioxide equivalent (CO2-e). It is about 132% higher than the one grown in local conventional farm at Tai Kong Po Tsuen, which is around 6.77E-01kg of CO2-e It seems the idea of replacing local conventional farming with vertical farming is not sustainable at this stage. Evaluation reveals the latter generates more amount of GHG which is 8.72E+00kg CO2-e/cup of Oak Leaf Lettuce. It is about 13 times higher than the locally grown in the conventional farm. The energy-hungry lighting system and the lack of renewable energy are among the major reasons for high GHG emission in vertical farming. Although the GHG emissions are higher than conventional farming in the designated lifecycle, vertical farming does contribute to sustainable development in terms of food stability and job opportunity. Uncertainties of this study could well be improved by developing a specific set of GHG emission factors for components in preparation stage and on-farm stage. More information could be collected for use and end-of-life stages, which is omitted in the study. Further comparison of wider variety of vegetables cultivated in different forms of farming should also be carried out. Carbon labelling scheme for agricultural products would brush up environmental awareness of both producers and consumers. With the trend of green consumption, it would provide an incentive for producers to adopt this scheme. It is especially important for local vertical farms to impose this scheme to increase its market competiveness. Moreover, government should play a significant role in promoting a more sustainable form of agriculture. Supportive policy like increasing investment in R&D for energy efficient technologies or even erecting a modern building for vertical farms would help achieve this goal. The lowered life cycle GHG emission would enhance sustainability of vertical farming. / published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

Sweetwater Organic Community Farm is an organic farm and environmental education center located in Tampa, Florida. The farm employs the community supported agriculture (CSA) model, in which members pay a single fee before the growing season begins and receive a weekly or biweekly share of the ongoing harvest in return. Using multiple ethnographic methods, this research aimed to understand the daily operations at Sweetwater as well as the perceptions of staff and CSA members. Findings indicated that there were myriad perceived advantages of organic agriculture but also imposing challenges that needed to be overcome. Moreover, staff members acknowledged the challenges associated with the CSA model such as pleasing and educating members and, for members, having to pick up at designated times and locations. Still, staff members also noted countless benefits, including the opportunity to connect to your food, farmers, environment, and community. In surveys, CSA members indicated that they were overwhelmingly satisfied the CSA model and Sweetwater. Complexities were uncovered that are often overlooked in the literature and merit further exploration. Among these were the pressure on farmers that resulted from receiving payments upfront and the willingness of individuals to become members without understanding the CSA model. There is a need for more studies to longitudinally examine changes in social support, food system knowledge, and eating habits that may occur over the course of the growing season.

Diss. (sammanfattning) Skara : Sveriges lantbruksuniv., 2002. / Härtill 5 uppsatser.

Diss. Uppsala : Sveriges lantbruksuniv., 2003.

Thesis (M. Env. St.)--University of Adelaide, Mawson Graduate Centre for Environmental Studies, 1994? / Includes bibliographical references (leaves 74-84).

Thesis (M.Sc.)(Hons.) -- University of Western Sydney, [2002]. / "A thesis presented to the School of Environment and Agriculture, University of Western Sydney in fulfilment of the requirements for the degree of Master of Science (Honours) " Bibliography: leaves 133-140.

Diss. (sammanfattning) Alnarp : Sveriges lantbruksuniversitet, 2007. / Härtill 5 uppsatser.