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| Registros recuperados: 2,189 | |
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| Adams, Richard M.; Menkhaus, Dale J.; Woolery, Bruce A.. |
| This study compares the structure of E, V frontiers under several specifications of expected income and variance parameters with emphasis on fundamental differences in efficient crop mixes. The results are generated using data from a specific production region and a selected set of cropping activities for Wyoming. The risk-efficient frontiers and underlying crop mixes display sensitivity to alternative parameter definitions and suggest that if researchers intend to use the E, V approach in providing decision information to producers, care should be exercised in the choice of income and risk measures. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1980 |
URL: http://purl.umn.edu/32530 |
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| Diallo, Mamadou Dian. |
| Senegal is heavily dependent on imported food, particularly rice. During the late sixties and early seventies the Sahelian drought made the country painfully aware how dependent its agriculture is on rainfall. Irrigation and full water control systems along the major rivers became the "priority of priorities" in the recent Senegalese national plans. In the Senegal River Valley two major types of irrigation schemes had been implemented along the river valley since 1973: large scale and small scale irrigated perimeters. The objectives are to increase rice production and reduce dependence on foreign imports of rice. This paper analyzed the two types of irrigation schemes in the Senegal River Valley and compares the financial and economic cost of... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Crop Production/Industries. |
| Ano: 1980 |
URL: http://purl.umn.edu/11036 |
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| Lawrence, Denis; McKay, Lloyd. |
| Tornqvist quantity indexes of output and input are computed for the period 1952/53 to 1976/77 from Australian Sheep Industry Survey data. The computation includes estimating the annual service flow from durable inputs. Total productivity in the sheep industry is estimated to have increased by 2.9 per cent per annum during this 25-year period. While the ratio of capital employed per unit of labour has increased, materials, services and livestock have been the inputs for which the quantity used has increased most rapidly. On the output side, there has been a move towards greater diversification with both crop and cattle enterprises on 'sheep properties' increasing in relative importance. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries; Productivity Analysis. |
| Ano: 1980 |
URL: http://purl.umn.edu/23059 |
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| Melton, Bryan E.. |
| Beef cow managers annually face the question of which animals to cull from the herd and replace. The results of this decision affect not only current revenues, but, by altering the genetic composition of the herd, also affect the future profitability of the herd. These genetic changes of the herd may, therefore, be represented as a form of endogenous technological progress to the cow calf producer. This article derives general asset replacement criteria for assets undergoing either exogenous or endogenous progress and illustrates their application with a Florida cow herd example. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1980 |
URL: http://purl.umn.edu/32391 |
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| Registros recuperados: 2,189 | |
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