Agri Eco.
nasibeh zarei; hossein mehrabi boshrabadi; hamid reza mirzaei khalil abadi
Abstract
In the current study, the effects of farming systems on potato production factors productivity were investigated in the 2011-2012. The data were collected using two stages cluster sampling and preparing 208 questionnaires submitted to farmers in the Koredestan and Hamedan Provinces. The efficacy of farming ...
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In the current study, the effects of farming systems on potato production factors productivity were investigated in the 2011-2012. The data were collected using two stages cluster sampling and preparing 208 questionnaires submitted to farmers in the Koredestan and Hamedan Provinces. The efficacy of farming systems computed using dummy variable, and to select the best produce function, flexible and non-flexible functions were studied. Results indicated that production function Cobb-Douglas is better than the other tested functions. In addition, the effect of ownership farming system on production factors productivity was positive while the effect of other farming systems was found to be negative. Therefore, it is recommended that Ministry of Jahad-e-Agriculture encourage farmers to buy rental land and wells over the long-term period by giving low interest loans.
Nasibeh Zarei; Hossein Mehrabi Boshrabadi; Mehdi Khosravy
Abstract
This study estimates water economic value in production of potato in 2011-12, using parametric method of production function. Data have been collected through questionnaires. Research sample includes 208 farmers and landowners in the Koredestan and Hamedan provinces, based on Cochran formula and two ...
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This study estimates water economic value in production of potato in 2011-12, using parametric method of production function. Data have been collected through questionnaires. Research sample includes 208 farmers and landowners in the Koredestan and Hamedan provinces, based on Cochran formula and two stage cluster sampling. In order to select the suitable function, several flexible and non-flexible functions has been checked that results indicate Cobb-Douglas production function acts better than the other tested functions. Elasticity of derived water demand for Potato crops estimated -1/95 which shows policy prices can be important factor to control water utilization. Economic value for each cubic meters of water for producing potato is estimated to be 2348.7 Rail, which it is less than its current price (1203.4 Rials). So, it suggests that in order to save water use in potato production, water value approximate to its market value.
