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        1 - Analyzing Wheat Farmers’ Behavior Regarding Water Management in the Orzuiyeh County based on the Theory of Social Cognition
        Leyla Sharafipoor Mostafa Ahmadvand
        The present study was conducted to analyze wheat farmers’ behavior regarding water use and conservation in the Orzuiyeh County based on the theory of Social Cognition. The statistical population of the research was 1350 wheat farmers in the central district of the More
        The present study was conducted to analyze wheat farmers’ behavior regarding water use and conservation in the Orzuiyeh County based on the theory of Social Cognition. The statistical population of the research was 1350 wheat farmers in the central district of the Orzuiyeh County that 135 of them were selected by using Bartlett et al. table of sample size. They were randomly selected. The data gathering tool was a researcher-made questionnaire based on social cognition theory whose face validity was confirmed by a panel of academic and performance experts. The reliability was also determined by conducting a study and calculating the Cronbach's alpha coefficients (0.58-0.86). The results of correlation analysis of the study variables showed that there is a positive and significant relationship between all the constructs of the theory (social structure factors, expectation of outcome, understanding of others behavior, self-efficacy and behavioral intention) and farmers' water management behavior. The results of multiple regression showed that the constructs of the theory predict a total of 36% of the variations of the management behavior of wheat farmers. In addition, the variables of understanding the behavior of others, self-efficacy and behavioral intention had significant influence on wheat farmers’ behavior of water use in the county. At the end, implications of the study for changing farmers’ behavior of water use are discussed. Manuscript profile
      • Open Access Article

        2 - Investigating the basil production functions under the conditions of simultaneous water stress and salinity
        Mahshad Sadaat Farahbakhsh Mahdi Sarai Tabrizi Hossein Babazadeh
        The lack of water and soil resources and their salinity are important points in the agricultural sector. Investigating the interactions between salinity and irrigation on plant yields is important in order to improve soil management and water use in arid and semi-arid r More
        The lack of water and soil resources and their salinity are important points in the agricultural sector. Investigating the interactions between salinity and irrigation on plant yields is important in order to improve soil management and water use in arid and semi-arid regions. The purpose of this study was to study and evaluate the production functions of Basilicum L. in Mazandaran mass cultivar under simultaneous stress conditions of water and salinity. For this purpose, an experiment was conducted on a hectare research site in the Dushantepheh research center of Tehran. In this study, we used microplate weight-drainage to determine the rate of evaporation-transpiration of basil plant. Factorial experiment was conducted in a completely randomized design with four irrigation treatments including complete irrigation (FI), irrigation with 40 (DI40%), 60 (DI60%) and 80 (DI80%) water requirements of the plant and three subsoil treatments Irrigation water with a conductivity of 175/1 (S1), 3 (S2) and 5 dS / m (S3) for two consecutive years of 1395 and 1396 was carried out. The results showed that the basal plant yield reduction was 3.1 dS / m for irrigation water salinity and 10% for grazing line slope. Manuscript profile
      • Open Access Article

        3 - The effect of mycorrhizal fungi, water stress and year on flower yield and some characteristics of medicinal plant of Borage (Borago officinalis L.) in Yasouj region
        Ali Rahimi
        Identifying the critical time and timing of plant irrigation based on a precise and basic plan is the key to water conservation, improvement of irrigation operations and plant tolerance to water shortage in agriculture. In recent years, vesicular arbuscular mycorrhizal More
        Identifying the critical time and timing of plant irrigation based on a precise and basic plan is the key to water conservation, improvement of irrigation operations and plant tolerance to water shortage in agriculture. In recent years, vesicular arbuscular mycorrhizal fungi have been used in many plants to deal with dehydration and drought stress. In this regard, an experiment was conducted as split-plot in the form of randomized complete block design with 3 replications in the Yasuj region at years 2015 and 2016. Water stress was considered as the main factor in the form of irrigation after 30, 60, 90, 120 and 150 mm of evaporation from the evaporation pan class A and mycorrhizal fungus was considered as a secondary factor in the form of no application, application of Glomus mosseae and application of Glomus intraradices. The results showed that the interaction of irrigation and mycorrhizal fungi on flower phosphorus, flower yield, biological yield and water use efficiency of Borage was significant. In irrigation levels after 60, 90, 120 and 150 mm of water evaporation from the evaporation pan, the use of mycorrhizal fungi Glomus mosseae and Glomus intraradices compared to the absence of fungi respectively increased the yield of plant flowers (30.04% and 27.35 %), (90.2% and 90.98%), (93.21% and 94.1%) and (81.73% and 78.86%), also, at these levels of irrigation, biological yield and water use efficiency of Borage flower achieved a significant increase in the presence of mycorrhizal fungus, compared to the absence of mycorrhizal fungus application. Application of both strains of mycorrhizal fungus Glomus mosseae and Glomus intraradices in irrigation levels after 90, 120 and 150 mm of water evaporation from the evaporation pan compared to no application of mycorrhizal fungus, respectively, resulted in a significant increase in the harvest index of Borage flower (44.55% and 43.36%), (13.21% and 15.96%) and (5.6% and 5.41%) and flower phosphorus (44.69% and 20.45%), (150% and 125%) and ( 267.74% and 235.48%). Mycorrhizal fungus was able to moderate the negative effects of drought stress and increase the above-mentioned traits in those irrigation levels, and based on the results of this study, irrigation treatment after 90 mm of water evaporation from the evaporation pan + the use of Glomus mosseae mycorrhizal fungi is recommended. Manuscript profile