جستجوی مقالات مرتبط با کلیدواژه « آبیاری تحت فشار » در نشریات گروه « علوم ترویج »

Nowadays, water scarcity has become a concern in Iran, and agriculture in particular appears to be at the core of the water shortage problem. The use of modern irrigation technologies has been proposed as one of several possible solutions. This survey research aimed to analysis adoption behavior of pressurizedirrigation technology by farmers. Statistical population of this research consisted of all the farmers of Dashtestan county (N=20000), Bousher Province. Using Cochran formula, size of the sample was determined (n=243). The respondents were selected by stratified sampling technique. Content validity of the questionnaire as research tool was confirmed by a panel of experts. Calculated Coronbach alpha coefficients (0.87 - 0.97) revealed that the reliability of the questionnaire was suitable. Correlation coefficients revealed positive significant relationship between age, farming experience, numbers of family members which engaged in farming, agricultural loans, loans used for developing pressurized irrigation, farm investment, investment in water supply, distance to the nearest center of Agricultural Services, number of labor, number of farmland plots, number of neighboring farmers which used pressurized irrigation, contacts with extension agents and participation in extension courses as independent variables with the adoption of pressurized irrigation, as dependent variable. The results of path analysis showed that "knowledge" has most impact on adoption of pressurized irrigation system with total path coefficient 0.359. Overally, findings of this research indicated that adoption behavior of pressurized irrigation technology was influenced by a set of variables, including: farming variables, economic variables, technical variables, personal and psychological variables, and support service variables.

The main objective of this study is analyzing of economical and social factors affecting on acceptance of pressurized irrigation technology in Hamedan city. In this study, the most important tools for gathering information including questionnaire and interview technique were used to gather research essential data. Sample size of this research includes of 316 person of wheat farmers, who have selected by random method, using of Cochran from the whole society(N=15474). Also, to evaluate the reliability of the questionnaire, firstly, a primal questionnaire was prepared and asked to 30 farmers and Ranking Theta was calculated about 0.85 and 0.82 respectively for Economical and social factors questionnaires . Results showed that economic variables of reduction of water consumption costs, land leveling costs reduction, financial ability of farmers, adequacy of loan amount have important and meaningful effects on irrigation technology acceptance. The analysis of data and research results has done by SPSS, the correlation analysis has also made by Kendall, Pearson and Spearman coefficient. Also, on the basis of research results, among considered social factors, the variables of investment security, providing training briefing and irrigation technology sellers advertising are important factors affecting on pressurized irrigation technology in Hamedan city.

The main purpose of this study was to examine the obstacles hampering the application of pressurized irrigation technology through the perception of agricultural production cooperatives members in both Ardabil and Bilesavar Townships. The population of the research included 900 wheat growers, which 130 persons were selected by proportional stratified sampling method. The sample size was determined by the use of Cochran formula. All of the selected farmers, cooperatively, applied pressurized irrigation system on their farms. The data collection tool was a questionnaire. The validity of the questionnaire was confirmed by a panel of experts at the University of Tehran and a group of Agricultural Jihad Organization specialists. Cronbach’s alpha coefficient was used to determine the reliability of the questionnaire (α=0.72). Data analysis was performed by implementing SPSS statistical software. The results of the study showed, there was a significant difference between the amount of wheat production and annual net income per hectare before and after implementation of pressurized irrigation systems. The obstacles of applying pressurized irrigation technologies by wheat growers were categorized in to four factors (Technical, Social, Natural and Economic). These factors all together accounted 64.21% of the total variance.