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Costs of Producing Energy in Dutch Dairy Chains AgEcon
Gebrezgabher, Solomie A.; Meuwissen, Miranda P.M.; Oude Lansink, Alfons G.J.M..
By 2020, Dutch dairy chains envisage to be self-sufficient with regard to energy used by dairy farms and dairy processors. This would require dairy farms to produce 25 PJ per year, possibly by a combination of wind, solar and biogas. Current analyses focus on biogas. To evaluate the project’s feasibility we estimated the expected technical and financial performance of 4 types of business models, i.e. “CHP-farm”, “CHP-large”, “green gas” and “central upgrading”. Data stem among others from 23 biogas plants in the Netherlands. Anticipating that CHP-models and green gas models occur with a likelihood of 40% and 60% respectively, the total number of biogas plants at dairy farms would amount to 463. There would however be an expected deficit of Euro 157 million...
Tipo: Conference Paper or Presentation Palavras-chave: Green electricity; Green gas; Empirical data; Technical performance; Financial performance; Agribusiness; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/59116
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Costs of Producing Biogas at Dairy Farms in The Netherlands AgEcon
Gebrezgabher, Solomie A.; Meuwissen, Miranda P.M.; Oude Lansink, Alfons G.J.M..
By 2020, Dutch dairy chains envisage to be self‐sufficient with regard to energy used by dairy farms and dairy processors. This would require dairy farms to produce 25 PJ per year, possibly by a combination of wind, solar and biogas. This paper focuses on biogas. To evaluate the project’s viability we estimated the expected technical and financial performance of 4 types of business models, i.e. “CHP‐farm”, “CHP‐large”, “green gas” and “central upgrading of green gas”. Data stem from among others 23 biogas plants in the Netherlands. Anticipating that CHPmodels and green gas models occur with a likelihood of 40% and 60% respectively, the total number of biogas plants would amount to 232 (1% of dairy farms), including a total of 5 million tons of manure per...
Tipo: Journal Article Palavras-chave: Green electricity; Green gas; Empirical data; Technical performance; Financial performance; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2010 URL: http://purl.umn.edu/91139
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Technical Performance and Cost Analysis of Broiler Production in Turkey Rev. Bras. Ciênc. Avic.
Tandoğan,M; Çiçek,H.
Abstract In this study, the live performance and costs of broiler production was examined and cost analysis were assessed in the Balıkesir, Bolu and Sakarya Provinces, which are the most important broiler-producing regions of Turkey. Annual (years 2012-2013) production data of 125 broiler farms were analyzed. Farms were scaled according to the irrearing capacities as small (1-10,000 broilers), medium (10,001-30,000) and large (30,001 and above). Cost and performance differences among farm scales and research centers were tested by one-way analysis of variance. Average live weight (LW), livability (LA), slaughter age (SA), feed conversion ratio (FCR), and production efficiency factor (PEF) values were calculated as 2.436 ± 0.006 kg; 93.502 ± 0.133%; 42.293...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler production; Cost analysis; Technical performance; Turkey.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100169
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Technical and economic viability of co-inoculation with Azospirillum brasilense in soybean cultivars in the Cerrado AGRIAMBI
Galindo,Fernando S.; Teixeira Filho,Marcelo C. M.; Buzetti,Salatier; Ludkiewicz,Mariana G. Z.; Rosa,Poliana A. L.; Tritapepe,Caio A..
ABSTRACT Biological nitrogen fixation (BNF) efficiency can be increased by co-inoculation with bradyrhizobia and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields. Thus, this study aimed to evaluate the technical and economic viability of soybean in the Cerrado, according to the cultivars and co-inoculation with Azospirillum brasilense. The experiment was conducted in Selvíria, MS, in no-tillage system, in Oxisol, arranged in a randomized block design in a 2 x 2 factorial scheme with two cultivars (‘Potência’ and ‘Valiosa’), with and without co-inoculation with Azospirillum brasilense in the seed. Co-inoculation with A. brasilense increases grain yield in the cultivars ‘Potência’ and ‘Valiosa’, being...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological nitrogen fixation; Total operating cost; Glycine max; Technical performance; Economic performance.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100051
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Evaluation of the Performance of Smallholder Pumped Irrigation Systems, in Arid and Semi-arid Areas of Kenya CIGR Journal
Stanley Njenga Kanga'u; student; P.G. Home; J. M. Gathenya.
A study was carried out to evaluate the performance of smallholder pumped irrigation systems with a view of comparing if the system operated within the designed optimal engineering standards. Different parameters studied were selection, design and operations of the irrigation systems with detailed analysis on energy uses for pumping (fuel use), efficiency of pumping devices as well as pump power required and energy losses (headlosses) during pumping. Semi structured questionnaires were administered to 80 smallholder farmers practicing pumped irrigated agriculture in Mitubiri location of Kakuzi division and Kithimani sub location of Yatta division, Kenya. An observational study was done to identify the irrigation methods used. Detailed study was done in 10...
Palavras-chave: Irrigation Assessment; Field irrigation Evaluation; Smallholder pumped irrigation; Technical performance; Kenya..
Ano: 2012 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1665
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