Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

Nutritional And Economic Analysis Of Small-Scale Agriculture In Imbaburra, Ecuador, Jake Erickson May 2013

Nutritional And Economic Analysis Of Small-Scale Agriculture In Imbaburra, Ecuador, Jake Erickson

All Graduate Theses and Dissertations

Nutritional and Economic Analysis of Small-Scale Agriculture in Imbabura, Ecuador Intervention projects in the developing world normally aim to satisfy either the nutritional needs of a group, or advancing the economic stability, but not both. One of the many issues that may arise by narrowly focusing and creating an aid program is that although a group may be fed, they are not equipped to mitigate risks that will arise after project completion and thus continue or revert back to a malnourished state. A bridge is required to join the economic and nutritional programs to create aid interventions that are sustainable ...


How Population Density Influences Agricultural Intensification And Productivity: Evidence From Ethiopia, Anna Leigh Josephson Jan 2013

How Population Density Influences Agricultural Intensification And Productivity: Evidence From Ethiopia, Anna Leigh Josephson

Open Access Theses

We use household-level panel data to estimate how population density impacts agricultural intensification and farm income in Ethiopia. We hypothesize that increases in population density affect agricultural intensification and farm income directly through information flows, institutional development, and reduction in transactions costs. Increases in population density also affect agricultural intensification and farm income indirectly through farm size, agricultural wage rates, and staple crop prices. We find that increases in population density lead to lower farm sizes, which has major implications for agricultural intensification and household well-being. Our analysis indicates that increases in population density cause farmers to purchase more inorganic ...


Learning And Power In International Farmer Exchanges, Stephen August Lauer Jan 2013

Learning And Power In International Farmer Exchanges, Stephen August Lauer

Graduate Theses and Dissertations

The "Bridging the Gap" program provides an opportunity to explore the relationships between learning and power in international agricultural development partnerships. A USAID-funded partnership between Iowa State University and Volunteer Efforts for Development Concerns, this farmer-to-farmer program sent groups of Iowan women farmers to Uganda to teach Ugandan women farmers with the objectives that Ugandans would move from subsistence to commercial farming and that both groups would benefit from the cultural exchange. Data were collected primarily through semi-structured qualitative interviews of 28 Ugandan farmers, 7 Iowan farmers, and several program staff, and were analyzed using a grounded-theory approach. This thesis ...


Energy In The Corn Belt: Is Maize Production Sustainable?, Matthew Bernau Jan 2013

Energy In The Corn Belt: Is Maize Production Sustainable?, Matthew Bernau

Electronic Theses and Dissertations

Technological and scientific innovation has transformed agricultural production. Corn production methods changed from a sustainable, nutrient recycling production system to one reliant on imported fossil energy inputs. Located in the Western Corn Belt, Union County, South Dakota was chosen as the study area. Changes in production methods are represented by four technological epochs: 1) The Draft Horse Epoch, 1890-1920; 2) The Tractor Epoch, 1920-1950; 3) The Fertilizer Epoch, 1950-1980; and 4) The Biotechnology and Precision Agriculture Epoch, 1980-2010. The energy budget method was used to measure the energy sustainability of corn production. The findings show that the volume of corn ...