نتایج جستجو برای: irrigation performance

تعداد نتایج: 1090050  

Journal: :پژوهش آب در کشاورزی 0
نعمت اله صداقت کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشگاه علوم کشاورزی و منابع طبیعی ساری. همت اله پیردشتی دانشیار، گروه زراعت، پژوهشکده ژنتیک و زیست فناوری کشاورزی طبرستان، دانشگاه علوم کشاورزی و منابع طبیعی. رضا اسدی عضو هیئت علمی موسسه تحقیقات برنج کشور – معاونت مازندران (آمل). سید یوسف موسوی طغانی کارشناس ارشد گروه زراعت، پژوهشکده ژنتیک و زیست فناوری کشاورزی طبرستان، دانشگاه علوم کشاورزی و منابع طبیعی.

in order to evaluate the possibility and compare different irrigation methods in ricecultivation, an experiment was conducted in factorial based randomized complete blockdesign at rice research institute of iran, mazandaran (amol), during 2011. treatments weredifferent irrigation regimes including alternate wet and drying (awd), semi-dry cultivation(sdc), combining shallow water depth with wett...

2015
Irene Pérez Marco Janssen John M. Anderies

Improving the adaptive capacity of small-scale irrigation systems to the impacts of climate change is crucial for food security in Asia. This study analyzes the capacity of small-scale irrigation systems dependent on the Asian monsoon to adapt to variability in river discharge caused by climate change. Our study is motivated by the Pumpa irrigation system, a small-scale irrigation system locate...

2013
Dan Chen Zhao-Hui Luo Jing Chen Jun Kong Dong-Li She

Sustainability evaluation of the process of water abstraction, distribution, and use for irrigation can contribute to the policy of decision making in irrigation development. Emergy theory and method are used to evaluate a pumping irrigation district in China. A corresponding framework for its emergy evaluation is proposed. Its emergy evaluation shows that water is the major component of inputs...

Journal: :International Journal of Current Microbiology and Applied Sciences 2017

ژورنال: علوم آب و خاک 2016
ابراهیمیان, حامد, احمدی, حجت, رضاوردی‌نژاد, وحید, همتی, محمد,

In this study, two different approaches of infiltration parameters estimation in traditional, variable and fixed alternate furrow irrigation, with and without cutback inflow, were performed and compared. Four usual methods including two-point (Elliott and Walker), Valiantzas one-point, Mailapalli one-point and Rodriguez and Martos optimization methods, as approaches based on advance data, and m...

2009
R. J. Smith J. N. Baillie

Although the term precision irrigation is now quite widely used, often to mean drip irrigation, there is no commonly accepted definition or conceptualisation of the term, and no cohesive framework to guide research, development or adoption. This paper is reporting on a review of precision irrigation funded by NPSI. This review is considering the role of current irrigation application technologi...

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...

2008
Rui Jin

Objectives/Goals An enormous amount of real-time information that is available on the Internet can be accessed and used in traditional control systems to improve performance. The objective of this project is to design and build an autonomous control system that manages an irrigation system to save water using Internet-obtained weather forecasts and local-obtained rainwater level information. Me...

Eman Pourkhiz Fakhrodin Ghasemi Sahebi Masoud Hekmat

To evaluate the effect of water, tape drip and furrow irrigation methods on the performance components and features of Agria cultivar potato, an experiment was carried out in the agriculture faculty of Kermanshah. Repeated three times, this study was carried out in the form of full random blocks with the main factor of different amounts of irrigation water in three levels (50, 75, and100 percen...

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