Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (2) BABT (1) Autor Callisto,Marcos (1) Chen, Daoping (1) França,Juliana Silva (1) Fuglie, Keith O. (1) Gonçalves Júnior,José Francisco (1) Heisey, Paul W. (1) Mais... Palavra-chave Input (3) Agriculture (2) Output (2) Agribusiness (1) Agricultural output (1) Agricultural research (1) CPOM (1) Canonical correlation (1) Cerrado (1) China (1) Crop yield (1) ERS (1) Food (1) Private sector research (1) Production Economics (1) Productivity (1) Productivity Analysis (1) Productivity growth (1) Public spending (1) Research and Development/Tech Change/Emerging Technologies (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal Article (1) Report (1) Ano 2011 (1) 2007 (1) 2006 (1) País United States (2) Brazil (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Analysis of Input and Output of China's Agriculture Based on Canonical Correlation AgEcon Chen, Daoping. I select effective irrigated area, consumption of agricultural chemical fertilizer, electricity consumed in rural areas, and total power of agricultural machinery as input variables of China's agriculture; I select grain, bean, tobacco, oil-bearing crop and fruit as output variables of China's agriculture. By using the data of China Statistical Yearbook in 2010, based on the analysis method of canonical correlation, I conduct research on the input and output of China's agriculture. The results show that consumption of chemical fertilizer has the biggest impact on the agricultural output of China, followed by the input of total power of agricultural machinery; the canonical variable of agricultural output of China is mainly impacted by grain, oil-bearing... Tipo: Journal Article Palavras-chave: Agriculture; Input; Output; Canonical correlation; China; Agribusiness. Ano: 2011 URL: http://purl.umn.edu/118221 Dynamics of allochthonous organic matter in a tropical Brazilian headstream BABT Gonçalves Júnior,José Francisco; França,Juliana Silva; Callisto,Marcos. The species composition of the riparian vegetation and the seasonal contribution of input and storage of fine and coarse particulate organic matter were assessed in a 3rd order stretch. Fourteen tree species in the riparian zone were identified, with 3 species contributing with 68% of total litter input: Miconia chartacea Triana (43%), Miconia cyathanthera Triana (16%) and Erythroxylum pelletarianum St. Hil (9%). The allochthonous input of coarse particulate organic matter (CPOM) was composed mainly by leaves (over 50%). Species composition and the contribution of each plant species biomass for vertical, lateral and soil inputs and benthic stocks varied along the study period. The maximum values found in September, November and December coincided with the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Riparian vegetation; Input; Standing stock; Cerrado; CPOM. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700014 Economic Returns to Public Agricultural Research AgEcon Fuglie, Keith O.; Heisey, Paul W.. Over the last several decades, the U.S. agricultural sector has sustained impressive productivity growth. The Nation's agricultural research system, including Federal-State public research as well as private-sector research, has been a key driver of this growth. Economic analysis finds strong and consistent evidence that investment in agricultural research has yielded high returns per dollar spent. These returns include benefits not only to the farm sector but also to the food industry and consumers in the form of more abundant commodities at lower prices. Tipo: Report Palavras-chave: Agriculture; Productivity; Productivity growth; Technology; Total factor productivity; TFP; Research investments; Food; Input; Output; Crop yield; Agricultural research; Agricultural output; Public spending; Private sector research; ERS; USDA; Production Economics; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies. Ano: 2007 URL: http://purl.umn.edu/6388 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco