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	Provedor de dados AgEcon (4) Autor Hardin, Daniel C. (4) Lacewell, Ronald D. (3) Harman, Wyatte L. (1) Musick, Jack T. (1) Oursbourn, Cecil D. (1) Unger, P.W. (1) Wiese, Allen F. (1) Mais... Palavra-chave Resource /Energy Economics and Policy (3) Crop Production/Industries (1) Teaching/Communication/Extension/Profession (1) Tipo do documento Journal Article (4) Ano 1985 (1) 1980 (1) 1979 (1) 1977 (1) País United States (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última TEMPORAL IMPLICATIONS OF LIMITATIONS ON ANNUAL IRRIGATION WATER PUMPED FROM AN EXHAUSTIBLE AQUIFER AgEcon Hardin, Daniel C.; Lacewell, Ronald D.. Economic losses caused by uncontrolled pumping of groundwater is of major concern on the Texas High Plains. A recursive linear programming model is used to evaluate various annual limitations on aquifer depletion. Results indicate that, especially under furrow irrigation, some limitations on groundwater withdrawal could be beneficial to society as well as the producers. Tipo: Journal Article Palavras-chave: Resource /Energy Economics and Policy. Ano: 1980 URL: http://purl.umn.edu/32526 IMPLICATION OF IMPROVED IRRIGATION PUMPING EFFICIENCY FOR FARMER PROFIT AND ENERGY USE AgEcon Hardin, Daniel C.; Lacewell, Ronald D.. Tipo: Journal Article Palavras-chave: Resource /Energy Economics and Policy. Ano: 1979 URL: http://purl.umn.edu/29531 CLASSIFICATION OF CONTRIBUTIONS TO THE SOUTHERN JOURNAL OF AGRICULTURAL ECONOMICS: 1969-76 AgEcon Oursbourn, Cecil D.; Hardin, Daniel C.; Lacewell, Ronald D.. Tipo: Journal Article Palavras-chave: Teaching/Communication/Extension/Profession. Ano: 1977 URL: http://purl.umn.edu/30530 NO-TILL TECHNOLOGY: IMPACTS ON FARM INCOME, ENERGY USE AND GROUNDWATER DEPLETION IN THE PLAINS AgEcon Harman, Wyatte L.; Hardin, Daniel C.; Wiese, Allen F.; Unger, P.W.; Musick, Jack T.. Rapidly rising fuel costs for irrigation and tillage, combined with groundwater depletion confront producers in the Great Plains. Maintaining profits while production costs escalate and water levels decline emphasizes the need to increase water and energy use efficiency. A linear programming analysis for a ten-year period comparing conventional tillage practices with no-till practices based on an irrigated wheat/ no-till feedgrain /fallow crop rotation indicates no-till increases both water and energy use efficiency. Returns to land, management, and risk are substantially higher using no-till practices Tipo: Journal Article Palavras-chave: Crop Production/Industries; Resource /Energy Economics and Policy. Ano: 1985 URL: http://purl.umn.edu/32516 Registros recuperados: 4 Primeira ... 1 ... Última

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