تعيين اندازه بهينه باغهاي كيوي در ايران

Estimating optimum size of kiwi fruit orchards in Iran

The goal of the present study is to estimate the optimum size of the Iranian kiwi fruit orchards and to examine the optimum number of trees per unit of production. The information and the data needed for the research are derived from questionnaires completed from the kiwi farms in 2001- 2002 . Econometric methods are used to study the cross section estimates of the total productivity function. The findings indicate that the land used for kiwi fruit cultivation is underutilized for all the orchards. The estimated optimum size of a kiwi fruit producing orchard is approximately 11.2 ha. This indicates that most of the kiwi fruit orchards are smaller than the optimum size. According to the findings of this study, the frequency of kiwi trees per hectare is approximately 402, which is much more than the optimum number. Therefore, it is suggested that the agricultural development officers should advise the kiwi farmers to try to establish orchards using the optimum size (between 10-12 ha.),and reduce the number of trees per hectare, in order to reach this size.