Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 69-73). Also available on the World Wide Web.

Diplomarbeit - Universität, Karlsruhe. / University publication. Includes bibliographical references.

Thesis (M.S.)--Rutgers University, 2008. / "Graduate Program in Food and Business Economics." Includes bibliographical references (p. 42-44).

Thesis (Ph.D.)--Aberdeen University, 2009. / Title from web page (viewed on July 30, 2009). Includes bibliographical references.

Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. / Source: Dissertation Abstracts International, Volume: 67-11, Section: B, page: 6119. Adviser: Stephen P. Long. Includes bibliographical references (leaves 89-99). Available on microfilm from Pro Quest Information and Learning.

Thesis (Ph. D. - Arid Lands Resource Sciences)--University of Arizona, 1983. / Includes bibliographical references (leaves 164-170).

The aim of thesis is to assess and evaluate how energy crops affect erosion phenomena, then identify a suitable alternative crop that has anti-erosion ability. Location is evaluated in detail Trebon, as cultivation areas suitable for Phytoenergetics and biogas. Furthermore, I studied agricultural biogas plant that uses biomass as input for biogas production. To evaluate and calculate erosion parameters for a given locality the method of universal soil loss equation by Wishmeier and Smith, and the value showed crops causing erosion. The calculated values are related to locations all over the South Region. Thanks to the universal equation it is possible to find alternative crops, which cause erosion and both are suitable for biogas production.

Biomass produced from perennial energy crops, Miscanthus and willow or poplar grown as short-rotation coppice, is expected to contribute to UK renewable energy targets and reduce the carbon intensity of energy production. The UK Government has had incentives in place, targeting farmers and power plant investors to develop this market, but growth has been slower than anticipated. Market expansion requires farmers to select to grow these crops, and the construction of facilities, such as biomass power plants, to consume them. Farmer behaviour and preferences, including risk-aversion, are believed to be important to crop selection decisions. Existing research estimating the total potential resource has either only simplistically considered the farmer decision-making and opportunity costs, or has not considered spatial variability. No previous work has modelled the contingent interaction of farmers’ decisions with the construction of biomass facilities. This thesis provides an improved understanding of the behaviour of the perennial energy crop market in the UK, by addressing these limitations, to understand the spatial and temporal dynamics of energy crop adoption. It attempts to determine the factors that govern the rate and level of adoption, to quantify the greenhouse gas abatement potential, and to assess the cost effectiveness of policy mechanisms. A farm-scale mathematical programming model was implemented to represent the crop selection of a risk-averse farmer. This was applied using spatially specific data to produce maps and cost curves economic supply, for the UK. To represent the contingent interaction of supply and demand within the market, an agent-based model was then developed. The results indicate that perennial energy crop supply may be substantially lower than previously predicted, due to the time lags caused by the spatial diffusion of farmer adoption. The model shows time lags of 20 years, which is supported empirically by the analogue of oilseed rape adoption. Results from integrating a greenhouse gas emissions balance shows that directly supporting farmers, via establishment grants, can increase both the carbon equivalent emissions abatement potential and cost effectiveness of policy measure. Results also show a minimum cost of carbon abatement is produced from scenarios with an intermediate level of electricity generation subsidy. This suggests that there is a level of support for electricity generated from energy crops that reduces emissions in the most cost effective manner.

Rhizoctonia solani, Pythium aphanidermatum, and Macrophomina phaseolina were isolated from Euphorbia lathyris grown in fields near Tucson, Arizona. R. solani occurred as a damping-off organism in the fall. P. aphanidermatum infected seeds, seedlings, and mature plants in laboratory and greenhouse tests. Although P. aphanidermatum was infrequently isolated from field plants in Arizona, it was a major pathogen of greenhouse plants growing at high temperatures in nonsterile soil. M. phaseolina was a major pathogen. Infection of E. lathyris roots occurred within 1 mo of an October 1980 planting, but symptoms were not significant until June. Sclerotia of this fungus ranged in numbers from 1 to 246 sclerotia/g field soil. Population densities of 0.2 sclerotium/g soil were sufficient to cause more than 90% plant death in field plots. Some plants infected with M. phaseolina were growing in an area newly cleared of native desert vegetation. Subsequently, M. phaseolina was found in uncultivated soils from four vegetative communities in southern Arizona at elevations from 600 to 2,000 m; the fungus also was recovered from roots of several symptomless native plants.

Šiame darbe pateikta gluosninių žilvičių auginimo, ruošimo bei naudojimo analitinė apžvalga, gluosnių auginimo technikos ir technologijų energetinis vertinimas, nesubrendusių gluosnių pjaustinio ilgio teoriniai tyrimai naudojant žolinių augalų smulkintuvą. Taip pat eksperimentiškai nustatytos gluosnių fizikinės – mechaninės savybės, poveikis aplinkai deginant skirtingo pjaustinio gluosnius. Tyrimai atlikti naudojant 10 kW biokuro katilą, skirtą kūrenti energetinių augalų skiedroms, briketams, paletėms. Nustatytos kenksmingų medžiagų (CO2 , CO, NO, NOx) emisijos į aplinką deginant skirtingo tipo smulkintuvais susmulkintus gluosnius. / In this work the willow cultivation, preparation and use of analytical review of willows growing energy technology and technology assessment in juvenile willow cuttings-length adaptation of the theoretical studies of herbaceous plants shredder. It is well established experimentally rushes physical - mechanical properties of the environmental impact of combustion of different willow cuttings. Investigations were carried out using a 10 kW biofuel boiler to burn energy crops for wood chips, briquettes, pallets. Down (CO2 , CO, NO, NOx) emissions into the environment by burning different types of chopped willow cutter.