Agricultural Extension and Education
Aida Shahryari; Homayon Farhadian; Maryam Mahmoudi
Abstract
The main purpose of this research was to study of rapeseed production challenges, as well as providing strategies for the development of this crop in Alborz Province. This descriptive-correctional study was conducted in two stages. In the first stage of this research, due to lack of comprehensive empirical ...
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The main purpose of this research was to study of rapeseed production challenges, as well as providing strategies for the development of this crop in Alborz Province. This descriptive-correctional study was conducted in two stages. In the first stage of this research, due to lack of comprehensive empirical background on the challenges of development of rapeseed cultivation in Alborz Province, the most important challenges and strategies for the development of rapeseed cultivation were collected from the perspective of experienced experts in the Organization and Management of Jihad-e-Agriculture, elite farmers and researchers through interviews. The statistical population of this part of the study was experienced experts, elite farmers and researchers in the field of research. Respondents were selected using non-probability snowball sampling. As a result of implementation of this stage and after the validity test, 46 and 27 variables were extracted as the most important challenges and strategies for the development of rapeseed cultivation in Alborz Province, respectively. In the second stage, in order to determine the importance of each identified variable from farmers' viewpoint, a questionnaire was designed in a Likert scale format and after the implementation of the pre-test and verification of its validity and reliability was given to the respondents. The statistical population of this part of the study included all farmers who were active in rapeseed cultivation during the last three years in the study area (N=142). Based on the results of factor analysis, the identified challenges were categorized into five factors, including: "poor supporting conditions; lack of resources, inputs and infrastructures; weak performance of educational-extension institutions; inadequate farm management; and plant physiological characteristics". The identified strategies were also categorized into three factors, including: "supply of inputs and infrastructures; financial support; and provision of research, extension and educational services". Improving the performance and efficiency of the Agricultural Insurance Fund, proper training of rapeseed field management by experts, and supplying and injecting special machinery for the agricultural sector are some of the suggestions that the results of this study offers to develop rapeseed cultivation in Alborz province.
Agricultural Extension and Education
Abbas Abbasian; Mahboobeh Naseri; Mohammad Reza Abbaspor
Abstract
Recently, the development of canola (Brassica napus L.) cultivation has attracted the attention of agricultural managers due to its favorable characteristics and the need for oil self-sufficiency. The present study was conducted to evaluate and analyze canola cultivation and yield in Torbat Heydariyeh ...
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Recently, the development of canola (Brassica napus L.) cultivation has attracted the attention of agricultural managers due to its favorable characteristics and the need for oil self-sufficiency. The present study was conducted to evaluate and analyze canola cultivation and yield in Torbat Heydariyeh Kadkan district. For this purpose, data on harvest levels, number of users and canola yields were examined during four years. Harvest levels in 2016, 2017, 2018 and 2019 were 20.3, 28.3, 26 and 22.15 hectares, respectively. Also, the weighted average yield of canola farms in Kadkan district during the mentioned years was 2.5, 3.4, 3.8 and 4 tons per hectare, respectively. The correlation of harvest data and yield of 28 rapeseed farms in the Torbat Heydariyeh Kadkan villages was adjusted with two linear and 3-parametric sigmoid models. The 3-parameter sigmoid model had a higher accuracy than the linear model due to the higher correlation coefficient (R= 0.65**) and the mean square error (RMSE = 0.85) Based on the sigmoid model, yield increased with increasing rapeseed cultivation levels and then stabilized. There was a significant relationship between the level and yield of canola in the four-year period (R = 0.6**), so that as the level of cultivation increased, the yield also increased. The production of 15 canola codecs in Kadkan during 33 years was 335 tons. To develop canola cultivation among farmers in Kadkan, programs such as increasing the guaranteed purchase price, timely supply of seeds, increasing incentive policies, developing efficient canola machines such as grain harvesters, equipping combine harvesters with canola harvesting heads, development of type irrigation and other new methods of irrigation, development of canola cultivation, development of joint ship projects, creation of shopping centers and collection of rapeseed from farmers, research to identify cold-tolerant cultivars to reduce cold sensitivity and development of the program Promotional training, especially when planting, watering and harvesting time of time is recommended. It is also advisable for agricultural managers and promoters of production areas to reduce costs and achieve greater economic efficiency and performance, encouraging major farmers to develop rapeseed cultivation.
