List of Articles کم‌آبیاری

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  1 - Study the effect of deficit irrigation on yield, quality characteristics and water use efficiency of three cultivars of soybean in Moghan plain
  Abasalt Rostami Ajirloo محمدرضا اصغری پور احمد قنبری مهدی جودی محمود خرمی وفا
  Water deficit is the main factor that limit growth of plants, so achieving optimal performance under water deficitcondition requires the selection of a suitable variety is due to the circumstances of each region. According to this, anexperiment was conducted in a split More

  Water deficit is the main factor that limit growth of plants, so achieving optimal performance under water deficitcondition requires the selection of a suitable variety is due to the circumstances of each region. According to this, anexperiment was conducted in a split plot arrangement based on randomized complete block design with threereplications on soybean in Moghan plain at 2015 and 2016 years. Main-plots were Normal irrigation (IR1), 80percent of full irrigation (IR2), 70 percent of full irrigation (IR3) and 50 percent of full irrigation (IR4) respectively,Cultivars included Williams (Cul1), M9 (Cul2) and Zan (Cul3) as a sub-plot. The results of comparing the means ofdata demonstrated that deficit irrigation decreased yield, yield components, percentage of seed oil of all cultivars.Also, the highest its characteristics (yield 4000 kg/hectare, Number of pods per plant 127.33, Number of seeds perplant 240, 1000 seeds weigh 300 gr, biomass 8900 kg/hectare, percentage of seed protein 25.3, WUE (yield) 0.95and WUE (grain oil) 0.23 kg.m-3) observed in Williams cultivar under normal irrigation and the lowest values forthese traits were obtained in Zan cultivar at IR3 and IR4 treatments. Also, the lowest protein content obtained innormal irrigation in the Williams cultivar and the highest that observed in the M9 cultivar at treatment IR4,respectively. Therefore, in order to this results Williams was the best cultivar under normal irrigation and waterdeficit conditions about yield and M9 was the sensitive variety to the deficit irrigation in Moghan Plain. Manuscript profile
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  2 - Evaluation of the different levels of water supply in pistachio gardens using SEBAL algorithm (The case study of Sirjan Plain)
  Alireza Badiehneshin Masoud Parsinejad Hamideh Noory
  Regarding the development trend of pistachio gardens in many provinces and the severe shortage of water resources in these areas, the supply of water requirement of pistachio is not feasible. In order to optimize management in water shortage conditions, it is necessary More

  Regarding the development trend of pistachio gardens in many provinces and the severe shortage of water resources in these areas, the supply of water requirement of pistachio is not feasible. In order to optimize management in water shortage conditions, it is necessary to evaluate the different levels of water supply during pistachio growth stages. The purpose of this study is determine the water supply status at different stages of pistachio growth using satellite images and SEBAL algorithm in Sirjan Plain. The actual evapotranspiration of pistachios was estimated using the SEBAL algorithm and Landsat 8 images. The result of this model was validated with Landsat 7 images. This model could calculate actual evapotranspiration of pistachio the same as other research with 20% error (0.6 mm/day). The results showed that supply of water in the third stage of growth (at the peak consumption) due to increased pistachio water requirement, insufficient water supply led to 30% deficit irrigation in Sirjan plain. In order to better irrigation management, production can be increased by reducing irrigation in the second stage and increasing irrigation in the third stage. The rate of deficit irrigation in the Sirjan Plain was 17% and it was in the tolerable threshold for the pistachio. The results show that the pistachio tree is resistant to deficit irrigation (up to 26%) in low salinity levels. In high water salinity (4000 μmho / cm), the effect of deficit irrigation and salinity is combined and pistachio production is rapidly reduced due to deficit irrigation. Manuscript profile
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  3 - 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
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  4 - Deficit irrigation simultaneously with reduced available water the solution to conservation of water resources in Qazvin plain
  Abozar Parhizkari Mohammad Mahdi Mozaffari Mohsen Shokatfadaee Abolfazl Mahmoodi
  In the present study first the agricultural production functions was estimated based on three techniques of  full irrigation and deficit irrigation 5 and 10 percent in order to presentation of the practical solution to conservation of surface and underground water More

  In the present study first the agricultural production functions was estimated based on three techniques of  full irrigation and deficit irrigation 5 and 10 percent in order to presentation of the practical solution to conservation of surface and underground water resources in Qazvin plain. The optimal amounts of cropping pattern were determined in Qazvin province by a non-linear programming model. Then, the effects of deficit irrigation was investigated on cropping pattern, water used and farmer’s gross marginal simultaneously with reduced available water under scenarios 10, 20, 30 and 40 percent. To estimating of the agricultural production functions was used Ordinary Least Squares method and Eviews software. The non-linear programming model was solved in GAMS software. The results of estimated production functions showed that deficit irrigation 5 percent creates a slight decrease in products yield. But, deficit irrigation 10 percent has the negative effect on yield of most products. The results of non-linear programming model showed although use of deficit irrigation 5 percent simultaneously with reduced available water policy creates the slight decrease in farmer’s gross marginal but this technique helps to maintain and sustainability of surface and underground water resources of Qazvin plain strongly. Manuscript profile
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  5 - Super Absorbent Polymer Effects on some Chemical and Physical Properties of Soil and Nutrients Releasing from Manure in Different Humidity Levels
  Elnaz Azizvand Elnaz Sabbaghe taze Maryam Haji rasouli
  10.22034/jest.2019.25115.3417
  Background and Objective: Considering the limited water resources and organic matter deficiency in Iran, joint application of super absorbent polymer and organic manure can be effective option to improve soil physical and chemical properties, fertility and maintenause o More

  Background and Objective: Considering the limited water resources and organic matter deficiency in Iran, joint application of super absorbent polymer and organic manure can be effective option to improve soil physical and chemical properties, fertility and maintenause of water storage. The purpose of this study was investigation the effect of super absorbent polymer on the amount of releasing of nutrients from manure in low humidity levels. Method: An experiment was conducted in a factorial form based on a completely randomized design with 18 treatments and three replications. The first factor was  amendment type and amount including six levels consists of a) no amendment (C), b) super absorbent polymer in rate of 0.2 % W/W (AS0.2), g) super absorbent polymer in rate of 0.4% W/W (AS0.4), d) manure in rate of 2%W/W (M), m) combination of super absorbent polymer in rate of 0.2% W/Wand manure in rate of 2% W/W (AS0.2+M), h) combination of super absorbent polymer in rate of 0.4%W/W and manure in rate of 2%W/W (AS0.4+M). The second factor was humidity with three levels including 80 % (h1), 70% (h2) and 60% (h3) of field capacity. Findings: Results showed that application of super absorbent polymer in rate of 0.2% W/Wand manure in rate of 2% W/W was more effective in improving chemical  soil properties such as increasing available phosphorus, available potassium, field capacity and cation exchange capacity and decreasing available sodium. In most cases there was not significant difference between super absorbent polymer in rate of 0.2% W/Wand manure in rate of 2% W/W and super absorbent polymer in rate of 0.4% W/Wand manure in rate of 2% W/W. Discussion and Conclusion:  Regarded to results it can be suggested that joint application of super absorbent polymer in rate of 0.2%W/W and manure in rate of 2%W/W was the best treatment in low humidity levels. Manuscript profile
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  6 - Increasing the efficiency of consuming cotton water using refined domestic sewage water under the conditions of applying different irrigation levels
  Ali Neshat Farzin Forouzesh
  10.30495/jest.2023.73132.5853
  Background and Objective: The water resources restriction introduces the water use efficiency in the agricultural section. In this study, an experiment based on the randomized complete block design with three replications was conducted in order to evaluate the effect of More

  Background and Objective: The water resources restriction introduces the water use efficiency in the agricultural section. In this study, an experiment based on the randomized complete block design with three replications was conducted in order to evaluate the effect of refined sewage on the performance and performance elements of cotton in the city of Kerman.  Material and Methodology: The experiment treatments were considered as three percent water requirement of plant as main factors: I1 =100, I2=85, and I3 =70 and two water quality as secondary factors: Q1 = well water and Q2 = domestic refined sewage.  Findings: The results showed that the 15 percent deficit-irrigation in comparison with the full water requirement when the domestic refined sewage is used in providing the full water requirement of the plant caused 14.8 percent increase in the water use efficiency and economizing 2405m3 water in conditions and the crop performance and morphologic characteristics remain constant relatively.Discussion and Conclusion: Accordingly, the refined sewage can face the water deficit problem of the country and increase the efficiency of irrigation. Also, the 15 percent deficit irrigation in comparison with the full providing of water requirement is recommended in the cotton planting in the Kerman province in order to economize the water use. Manuscript profile
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  7 - بررسی تأثیر کم‌آبیاری و شوری آب آبیاری در مراحل مختلف رشد بر عملکرد و اجزای عملکرد هیبرید ذرت KSC-500 در اقلیم اهواز
  امیر سلطانی محمدی حیدرعلی کشکولی احمد نادری سعید برومندنسب
       این تحقیق به منظور بررسی اثر کم­آبیاری و شوری آب آبیاری در مراحل مختلف رشد بر عملکرد و اجزای عملکرد ذرت دانه‌ای رقم 500KSC- در اقلیم شهرستان اهواز و در فصل زراعی 90-1389 اجرا گردید. تحقیق در سه آزمایش مستقل و هر یک در قالب کرت­های خرد شد More

       این تحقیق به منظور بررسی اثر کم­آبیاری و شوری آب آبیاری در مراحل مختلف رشد بر عملکرد و اجزای عملکرد ذرت دانه‌ای رقم 500KSC- در اقلیم شهرستان اهواز و در فصل زراعی 90-1389 اجرا گردید. تحقیق در سه آزمایش مستقل و هر یک در قالب کرت­های خرد شد و نیز در قالب طرح بلوک­های کامل تصادفی در سه سطح آبیاری و سه سطح شوری، در سه تکرار و در سه مرحله رشد رویشی (آزمایش یک)، گل­دهی (آزمایش دو) و بعد از گل­دهی (آزمایش سه) انجام شد. تیمارهای آبیاری، شامل I1، I2 و I3 به ترتیب معادل 100، 75 و 50 درصد نیاز آبی گیاه و تیمارهای شوری، شامل S1، S2 و S3 به ترتیب معادل شوری آب رودخانه کارون در روز آبیاری (S1)، S2=S1+1 و S3=S1+2 دسی­زیمنس بر متر بود. نتایج نشان داد که اثر متقابل کم­آبیاری و شوری آب آبیاری در هر سه آزمایش بر صفات مورد مطالعه (تعداد دانه در بلال، وزن 100 دانه، عملکرد دانه، عملکرد بیولوژیکی و شاخص برداشت) معنی‌دار نبود. اما با افزایش کم آبیاری و شوری آب آبیاری، میانگین صفات مورد بررسی کاهش یافت. حداکثر عملکرد دانه، در آزمایش، یک از تیمار I2 و برابر با 2/5 تن در هکتار به دست آمد و در آزمایش­های دو و سه، حداکثر عملکرد دانه به ترتیب 8/5 و 2/6 تن در هکتار از تیمار I1 حاصل شد. در شرایط تنش شوری، حداکثر عملکرد دانه، از تیمار S1 به دست آمد که برای آزمایش یک، دو و سه به ترتیب،  برابر با 3/5، 5/5، 7/6 تن در هکتار بود. بر اساس نتایج به دست آمده، حساس­ترین مرحله رشد نسبت به کم­آبیاری و شوری آب آبیاری، مرحله بعد از گل­دهی ارزیابی شد. Manuscript profile
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  8 - اثر رژیم‌های کم آبیاری و نانوذرات سیلیکا بر عملکرد و شاخص‌ بهره‌وری آب در گیاه کاهو (Baby lettuce Vivian)
  شکور طافی عبدالرحیم هوشمند ناصر عالم زاده انصاری
  رشد جمعیت و افزایش مشکلات زیست محیطی، تقاضای آب آبیاری در بسیاری از مناطق جهان را افزایش داده است. فناوری نانو تاثیرات زیادی در تولید پایدار محصولات کشاورزی داشته و می‎تواند خطرات زیست محیطی را کاهش داده و فرصت‎هایی برای تولید محصولات جدید فراهم کند. این تحقیق ب More

  رشد جمعیت و افزایش مشکلات زیست محیطی، تقاضای آب آبیاری در بسیاری از مناطق جهان را افزایش داده است. فناوری نانو تاثیرات زیادی در تولید پایدار محصولات کشاورزی داشته و می‎تواند خطرات زیست محیطی را کاهش داده و فرصت‎هایی برای تولید محصولات جدید فراهم کند. این تحقیق با هدف بررسی عملکرد و بهره­وری مصرف آب تحت شرایط رژیم­های کم­آبیاری و نانوذره سیلیکا انجام شد. مطالعه حاضر بر روی گیاه کاهو رقم baby lettuce Vivian در سه سطح ­آبیاری 75، 85 و 100 درصد نیاز آبی گیاه، سه سطح کاربرد نانوذره شامل: 0، 50 و 100 میلی­گرم بر لیتر به صورت تغذیه ریشه­ای در سه تکرار انجام شد. این طرح در قالب کرت­های خرد شده نواری و با طرح پایه بلوک­های کامل تصادفی تحلیل شد. براساس نتایج، بیش­ترین میزان پارامتر عملکرد کل به ترتیب در تیمار  I100F100برابر 88/87 گرم بر بوته و کم­ترین میزان در تیمار  I85F50با 47 گرم بر بوته به ثبت رسید. هم­چنین بالاترین عملکرد زیست­توده در تیمار I100F50 ثبت شد که برابر 33/61 گرم بر بوته بود و پایین­ترین عملکرد زیست­توده نیز در تیمار I75F100 گزارش گردید که برابر 26 گرم بر بوته بود. تیمار I100F50 با 53/20 کیوگرم بر مترمکعب بیش‎ترین بهره­وری مصرف آب را داشت. بالاترین و پایین­ترین شاخص برداشت در این پژوهش، به­ترتیب برابر 68/74 و 61/52 درصد بود. Manuscript profile
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  9 - Effect of Different Irrigation Regimes on Agronomic Characteristics and Grain Quality in Selected Rice Genotypes (Oryza sativa L.)
  Masoumeh Habibi Pooria Mazloom Morteza Nasiri Ali Eftekhari Morteza Moballeghi
  10.30495/JCEP.2023.1926035.1785
  The occurrence of water shortage and drought stress during plant growth, is caused yield loss as well as the grain quality of rice genotypes. Hence, this experiment was conducted to determine eefects of different irrigation methods on rice grain yield and several import More

  The occurrence of water shortage and drought stress during plant growth, is caused yield loss as well as the grain quality of rice genotypes. Hence, this experiment was conducted to determine eefects of different irrigation methods on rice grain yield and several important grain quality traits such as amylose percentage, degree of milling and gelatinization temperature in Rice Research Institute of Iran (Mazandaran Branch, Amol) in 2017. Experiment carried out as split plots using randomized complete blocks design with main factor of irrigation methods in three levels of flooding irrigation, alternate wetting and drying method up to 10 (AWD10) and 20 (AWD20) cm below the soil surface and sub-factor with ten rice genotypes. The results showed that different irrigation treatments were statistically significant on garin lenghg before cooking, crash grain, amylose content and gelatinization temperature. Among the genotypes, Neda with average of 6901.7 kg.ha-1 had the highest grain yield, harvest index 44.2%, milling efficiency, degree of milling 72.3% and healthy garin 65.3%. The highest degree of milling (90%), grain length after cooking (13.2 mm), elongation ratio (2 mm) and Gelatinization temperature (5.6) belong to Vandana, IR74428-153-2-3, Firozan and IR70416-53-2-2 genotypes, respectively. In general, considering to the important quantities and qualities traits of genotypes in irrigation regime treatments were not different from flooding method, therefore, the studied genotypes are recommended for planting in areas with lack of irrigation water. It should be noted that Neda genotype is introduced as a superior genotype due to increase of sevral important quantities and qualities traits compared to other genotypes. Manuscript profile
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  10 - Simulation of the Effect of Irrigation Management on Yield, Biomass and Water Use Efficiency of Canola (Brassica napus L.) Using AquaCrop Model
  Afsaneh Gholami Aslan Egdernezhad Niaz Ali Ebrahimipak
  10.30495/JCEP.2023.1930748.1804
  The aims of this study is evaluate AquaCrop in simulating rapeseed yield, biomass and water use efficiency under different irrigation amounts (E1, E2, E3 and E4, indicating water supply of 50, 75, 100 and 125 mm from the evaporation pan, respectivly) was performed in th More

  The aims of this study is evaluate AquaCrop in simulating rapeseed yield, biomass and water use efficiency under different irrigation amounts (E1, E2, E3 and E4, indicating water supply of 50, 75, 100 and 125 mm from the evaporation pan, respectivly) was performed in three cropping years (Y1, Y2 and Y3 representing the first, second and third years, respectively). In order to calibrate this model, the data collected from the first year used for calibration and data for the second and third year were used for validation. The results showed that AquaCrop had an overestimated error (MBE< 0) to simulate all three parameters studied. The accuracy of AquaCrop was excellent for simulating yield and biomass (NRMSE <0.1) and good for water use efficiency (NRMSE <0.2). The mean differences between simulated and observed yield, biomass and water use efficiency water were 0.19 t.ha-1, 0.78 t.ha-1 and 0.05 kg.m-3, respectively. Based on the results, use of AquaCrop to simulate rapeseed yield, biomass and water use efficiency is recommended. Manuscript profile
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  11 - Effect of water deficit stress and application of humic and salicylic acid on physiological traits, yield and yield components of corn
  Seyyed Moosavi hossain Ragh ara
  In order to study the effect of water deficit and the application of humic and salicylic acid on physiological traits, yield and yield components of corn, an experiment was carried out as a split-plot based on randomized complete blocks design with three replications at More

  In order to study the effect of water deficit and the application of humic and salicylic acid on physiological traits, yield and yield components of corn, an experiment was carried out as a split-plot based on randomized complete blocks design with three replications at the research field of Islamic Azad Universityof Birjand, Iran in 2014. The main factor was irrigation in three levels (supply of 33, 67 and 100% water requirement) and the sub-factor was humic and salicylic acid application in 4 levels (application of humic acid, salicylic acid, humic + salicylic acid and no application). The results of variance analysis showed that irrigation significantly affected traits of physiological, seed yield components and yield but humic acid and salicylic acid application significantly affected chlorophyle index, stomatal conductivity, 1000-seed weight and seed yield. Also, interaction effect of irrigation and humic acid and salicylic acid was no significant on measured traits. Chlorophyle index, stomatal conductivity, ear number per m2, row number per ear, seed number per row, seed number per ear and 1000-seed weight significantly decreased by 15.6, 35.6, 41.2, 14.1, 33.9, 61.8 and 40%, respectively with the decreas of water requirement from 100 to 33%. Seed yield and biological yield in treatment of 100% water requirement supply, had significantly superiority 3.9 and 2.4 times, respectively as compared with treatment of 33% water requirement supply. Chlorophyle index by 7.5, 7.7 and 8.9%, 1000-seed weight by 22.5, 26.6 and 20.7% and seed yield by 26.5, 18.5 and 21.7%, significantly increased with application of humic acid, salicylic acid and humic acid + salicylic acid respectively as compaed with no application of this acids. The results showed that supply of 100% water requirement and independent application of humic acid or salicylic acid can increase seed yield of corn. Manuscript profile
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  12 - Potato Irrigation Planning based on Moisture depletion using AquaCrop
  Mohammad Ali Ansari Aslan Egdernezhad Niazali Ebrahimipak
  In order to potato irrigation planning based on moisture depletion, calibrated AquaCrop was used. This model was calibrated using data collected from a research station in Chahartakhteh, Shahrekord, in two years. Then, Aquacrop was implemented under multi run in differe More

  In order to potato irrigation planning based on moisture depletion, calibrated AquaCrop was used. This model was calibrated using data collected from a research station in Chahartakhteh, Shahrekord, in two years. Then, Aquacrop was implemented under multi run in different depletion and irrigation scenarios (DyIx; which y indicates depletion amount and x indicates irrigation amount in mm). Results revealed that there was no water stress under 40 mm depletion and 40 mm irrigation. Crop yield and biomass was so low when depletion was more than 80 mm. In order to apply deficit irrigation, depletion must be between 40 to 70 mm. Based on the results, maximum yield was observed for D40I40 (22.6 ton.ha-1) and minimum yield was observed for D70I20 (10.8 ton.ha-1). In the case of water deficit, D60I40, D60I30, and D65I30 were the best scenarios so that the yields for mentioned scenarios were 16.8, 22.2, and 27 percent less than D40I40 yield. Biomass values for mentioned scenarios were 16.6, 21.8, and 26.7 percent less than D40I40 biomass. Water use efficiency for this scenarios were 0.7 (more), 0.7 (less), and 1.9 (less) than D40I40 one. So, D40I40 and D60I40 were the best scenario in full and deficit irrigation, respectively. Manuscript profile
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  13 - Effects of partial root drying technique on agricultural and medicinal plants
  Mahdi Malekpour Masood Parsinejad
  Water resources are very important to agricultural crop production due to increasing demand for food, feed, and fiber. There is a growing requirement for more use of our natural resources of land, soil, and water. There is ever-increasing pressure on water resources for More

  Water resources are very important to agricultural crop production due to increasing demand for food, feed, and fiber. There is a growing requirement for more use of our natural resources of land, soil, and water. There is ever-increasing pressure on water resources for our extensive use in agricultural production. There needs to be innovative solutions for more efficient irrigation techniques for better development of agricultural irrigation management. This review paper shows the consequences of partial root-zone drying happening on various plant species, its advantages and disadvantages, and also the hormone production under partial root-zone drying. In this technique of irrigation, a wet-dry cycle irrigates the crop, i.e., irrigation is scheduled at a regular interval with half way root drying. This is a water-saving irrigation strategy used in arid and semi-arid environments for increasing irrigation water use efficiency and water productivity as compared to fully irrigated crop plants in area with limited water resources. Scientists have worked a lot with different morphological, physiological, and yield related parameters of horticultural crops with partial root-zone drying but little work with agronomic crops. Manuscript profile