نتایج جستجو برای: deficit irrigation in boll formation stagei3

تعداد نتایج: 17072282  

Journal: :تحقیقات مهندسی کشاورزی 0
نیازعلی ابراهیمی پاک استادیار بخش آبیاری و فیزیک خاک مؤسسه تحقیقات خاک و آب ابراهیم پذیرا استاد دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

this study was conducted to evaluate the impact of deficit irrigation and growth stages on yield and yield components of potatoes and water use efficiency. a field experiment was conducted at shahrekord agricultural research station over three years of crop seasons using a randomized complete block design with three replications. plots were assigned to five levels of deficit irrigation treatmen...

Journal: :مدیریت آب و آبیاری 0
محسن افاضاتی کارشناسی ارشد آبیاری و زهکشی، گروه مهندسی آب، دانشکدۀ فنی و کشاورزی، دانشگاه آزاد اسلامی، واحد کرمان، کرمان، ایران محسن ایران دوست استادیار گروه مهندسی آب، دانشکدۀ فنی و کشاورزی، دانشگاه آزاد اسلامی واحد کرمان، کرمان، ایران عباس رضایی استخروییه استادیار گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران

this study was performed in order to evaluate the effects of application of super absorbent on the yield and water use efficiency of cucumber under deficit irrigation conditions in greenhouse. plants cultivated in plastic pots and irrigation emitter with four liters per hour discharge was performed. three levels of irrigation water height (10, 8.3 and 6.2 mm day-1) were used as the main factor ...

Abstract: To investigate the effect of nutrition management along with zeolite application on the fertilizer use efficiency and irrigation water productivity of two cultivars of maize under deficit irrigation conditions, a field experiment was carried out. The experiment was conducted at Soil and Water Research Institute, Karaj, Iran, in 2015 and 2016, in the form of a   factorial split plot...

ژورنال: علوم آب و خاک 2016
جمشیدی , سجاد , فروهرفر, فریده , نوشادی, مسعود ,

Evaluation of pollutant transportation in soil is important from different environmental aspects such as soil and groundwater contamination. The purpose of this study is to measure 2, 4-D concentrations in a silty loam soil under two different treatments (normal and deficit irrigation) in a corn field and simulate the results using the PRZM-3 and LEACHP models. Total concentrations of 2, 4-D in...

Journal: Desert 2016
Gh.R. Afsharmanesh H. Heidari Sharafabad H. Sarhadi J. Daneshian S.A. Valadabadi

     For investigation deficit irrigation and nitrogen application effect on nutrients uptake of henna ecotypes, this research was conducted in the form of split-split-plot on the basis of randomized complete block design with four replications in the Research Field of Islamic Azad University, Jiroft, Iran in 2013-2014. The main, sub and sub-sub plot were deficit irrigation (100, 75 and 50% of ...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
مهدی سرائی تبریزی دانشجوی دکتری آبیاری و زهکشی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب، تهران، ایران مسعود پارسی نژاد دانشیار گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج حسین بابازاده استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب، تهران

present limitations on available water resources especially for use in agriculture sector, shows that more attention to irrigation water management is inevitable. deficit irrigation is a practice to improve use of unit volume of water. in this research, efficacy of cropwat 8.0 model was evaluated against field data under deficit irrigation management on soybean in karaj. in 2008 and 2009 agrono...

Journal: :پژوهش های زراعی ایران 0
علی ماهرخ فرهاد عزیزی

this study was conducted to determine the effect of cliniptilolite natural zeolite on deficit irrigation stress tolerance on maize cultivar ksc704. the experiment was laid out as a factorial design based on randomized complete block with three replications at seed and plant improvement institute, karaj in 2012. four irrigation levels, including irrigation after 70, 95, 120 and 145 mm cumulative...

Journal: :بوم شناسی کشاورزی 0
بهروز اسماعیل پور منصور اکبری

deficit irrigation is an essential optimization method for water consumption in irrigated lands. in order to investigate the effects of deficit irrigation on growth, yield and quality traits of two tomato (lycopersicon esculentum mill.) cultivars a factorial layout based on randomized complete block design with three replications was conducted in agricultural research station of miandoab during...

Journal: :بوم شناسی کشاورزی 0
بی بی الهه موسوی فر محمدعلی بهدانی مجید جامی الاحمدی محمد سعید حسینی بجد

deficit of oil seeds and high volume of oil imports in iran, and limitation of water sources against production of many oil seed crops, demonstrate the importance of detection tolerant species and cultivars for stressful conditions and their most sensitive growth stages to saline stress. in order to study response of spring safflowers (carthamus tinctorius l.) genotypes to disruption irrigation...

Journal: :آب و خاک 0
الیاس رضائیان زاده مهدی پارسا علی گنجعلی احمد نظامی

abstract in order to investigate the effects of different irrigation regimes on yield and yield components of three chickpea cultivars, an experiment was conducted during the 2007 growing season at mashhad. six irrigation regimes including i1= full irrigation, i2= irrigation at branching, i3= irrigation at flowering, i4= irrigation at pod formation, i5= irrigation at seed filling stage, and i6=...

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