نتایج جستجو برای: normal irrigation control and deficit irrigation

تعداد نتایج: 17049380  

2014
Marcelo R. dos Santos Mauro A. Martinez Sérgio L. R. Donato Eugênio F. Coelho

This study aimed to evaluate the fruit yield and the distribution of ‘Tommy Atkins’ mango root system under different irrigation regimes in the semiarid region of Bahia. The experimental design was completely randomized with five treatments and three replicates: 1 Irrigation supplying 100% of ETc in phases I, II and III; 2 Regulated deficit irrigation (RDI) supplying 50% of ETc in phase I (begi...

Journal: Desert 2020
B. Motesharezadeh, E. Fathi F. Mirzaei, M. Parsinejad P. Ahmadi

Using plants for the remediation of soils contaminated with heavy metals is an economical, cheap, and effective strategy. The goal of this research was to study the effect of sewage sludge and drought stress on the remediation of cadmium in soil, root uptake by corn plant. This study was carried out on corn in factorial design experiment based on completely randomized design with three replicat...

2013
José L. Chávez Jon Altenhofen Kendall DeJonge

Over the past few decades, the competition for freshwater resources has substantially increased in arid/semi-arid areas, exacerbating the pressure on the largest user of water, namely agriculture, to consume less water. However, reducing crop consumptive water use or evapotranspiration through water stress can have a negative impact on production economics if not precisely managed. Remote sensi...

2016
Lei Liu Jianqin Ma Yi Luo Chansheng He Tiegang Liu Jun Xu

Conflicts between water supply and water demand are intensifying in irrigation districts along the Lower Yellow River due to climate change and human activities. To ensure both adequate food supply and water resource sustainability in China, the Soil and Water Assessment Tool (SWAT) model was used to simulate the water balance and water use of agro-ecosystems in an irrigation district of the lo...

Journal: :The Journal of trauma 2008
Steven J Svoboda Brett D Owens Heather A Gooden Michael L Melvin David G Baer Joseph C Wenke

BACKGROUND Although the use of potable water for wound irrigation is attractive in an austere environment, its effectiveness has not been tested. We sought to compare the effectiveness of potable water irrigation in reducing bacterial number with that of normal saline irrigation. METHODS We used an established caprine model involving the creation of a reproducible complex musculoskeletal woun...

Journal: :پژوهش های حبوبات ایران 0
علیرضا عیوضی حسن تقی خانی شهرام شیر علیزاده محمد رضائی سید حیدر موسوی انزابی

in order to investigate the effects of water deficit at different growth stages of chickpea genotypes, determining the best drought tolerance index and genotypes, an experiment carried out in the saatlu agricultural research station of uromia in 2008-2009. the experiment was split plot based on the randomized complete blocks design with four replications, in which, four levels of irrigation as ...

Journal: :پژوهش های حبوبات ایران 0
جعفر زارع زارگز محمد گلوی

water scarcity is a major factor for limiting crop growth and development in arid and semi-arid regions. in order to study the effects of varying timing and severity of water deficit on mung bean phenological traits, a field experiment was carried out during 2009 growing season at agricultural research institute of zabol university. the experiment was laid out in split plot by using a randomize...

حق‌ نیا, غلامحسین , علیزاده, امین , قربانی, قربانعلی ,

In order to compare the effect of drip and furrow irrigation methods with different quantities of water (50%, 75%, and 100% of the amount of water evaporated from class A pan evaporation during irrigation intervals) on yield and quality of tomato, an experiment was conducted on a silty loam soil in Mashhad Agricultural Research Station. The experimental design was a factorial trial with complet...

Journal: :علوم باغبانی ایران 0
جلال خورشیدی دانشجوی سابق دکتری فیزیولوژی و اصلاح گیاهان دارویی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مجید شکرپور استادیار، گروه باغبانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج وحیده ناظری دانشیار گروه باغبانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

in order to study water deficit tolerance in thymus daenensis subsp. daenensis ecotypes, seeds of eight ecotypes were collected from different locations. seedling are produced in greenhouse, and then transferred to field as an experiment of split plot design based on rcbd with three replicates. three irrigation treatments (normal irrigation, prevention of irrigation at the start of flowering an...

Journal: :تحقیقات مهندسی کشاورزی 0
غلامعلی کیخا کارشناس ارشد آبیاری و زهکشی مرکز تحقیقات کشاورزی و منابع طبیعی زابل فاطمه کیخایی کارشناس ارشد آبیاری مرکز تحقیقات کشاورزی و منابع طبیعی اراک ناصر گنجی خرم دل عضو هیأت علمی گروه مهندسی آب دانشگاه اراک مهدی کیخا دانش آموخته کارشناسی ارشد آبیاری و زهکشی دانشگاه تهران

this study evaluates the effect of irrigation method on the water use efficiency and yield of onions at the zahak agricultural research station in sistan province. the testing was conducted using a split plot arrangement and a randomized complete block design with three replications during the 2005-2006 crop seasons. irrigation methods were basin and drip tape irrigation and the irrigation leve...

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