نتایج جستجو برای: improvement irrigation efficiency

تعداد نتایج: 715413  

Journal: :international journal of preventive medicine 0
hamed alaghemandan mohammad h yarmohammadian elaheh khorasani sobhan rezaee

background: in isfahan, the second metropolitan in iran, there are 1448 dentistry treatment centers that most of them are inefficient. today, efficiency is the most important issue in health care centers as well as dentistry clinics. the goal of this research is to investigate the affordability and efficiency of dentistry clinics in isfahan province, iran. methods: the current work is a quantit...

2003
F OLIVIER

To meet the challenge of a limited and costly water supply, South African sugarcane growers will have to find ways of increasing the efficiency of irrigation to maintain high cane and sucrose yields. The term ‘water use efficiency’ (WUE) is generally used as a measure of the overall effectiveness of water (either rainfall or irrigation, or both) for crop production. WUE can be defined as cane y...

2005
Karin T. Rebel S. J. Riha

To minimize movement of tritium into surface waters at the Mixed Waste Management Facility at the Savannah River Site, tritiumcontaminated groundwater released to the surface along seeps in the hillside is being retained in a constructed pond and used to irrigate forest acreage that lies over the contaminated groundwater. Management of the application of tritium-contaminated irrigation water ne...

World electricity production today is heavily dependent on water resources. Studies have shown that global warming and climate changes will have significant impacts on available water resources to produce hydroelectric power. Considering that the reservoir dam in the catchment area of Dez is simultaneously a producer of hydropower and supplier of water needed for agricultural land, the aim of t...

2014
Abolfazl Khoshdel Gholam Reza Panahande Mohamad Kazem Noorbakhsh Mohamad Reza Malek Ahmadi Masoud Lotfizadeh Neda Parvin

PURPOSE The efficacy of antibiotic therapy for acute sinusitis is controversial. This study aimed to compare the efficacies of amoxicillin with nasal irrigation and nasal irrigation alone for acute sinusitis in children. METHODS This randomized, double-blind, controlled study included 80 children aged 4-15 years with a clinical presentation of acute sinusitis. Patients were randomly assigned ...

Journal: :آب و خاک 0
سید حسین صدرقاین جواد باغانی سید ابوالقاسم حقایقی مقدم مهدی اکبری

abstract this study was conducted to determine the best drip irrigation method for pepper cultivation with the objective of water saving and obtaining maximum yield. the study was done during two years. experimental design was randomized complete blocks design (rcbd) in split plot with four replications. three different drip irrigation methods; drip irrigation with in-line emitter tubes, drip i...

Journal: :آب و خاک 0
سیده سهیلا نوربخش مهدی قبادی نیا عبدالرزاق دانش شهرکی محمدرضا نوری امام زاده ئی روح الله فتاحی نافچی

introduction: nowadays, due to lack of water resources and increasing demand for water, agricultural water planning issues need further consideration. with proper planning and determination of irrigation depth and time, the effects of stress and yield loss on the plants are reduced. irrigation scheduling is one of the most important factors in crop’s quality and quantity. the main objective of ...

2011
I. F. García-Tejero V. H. Durán-Zuazo L. M. Vélez A. Hernández A. Salguero

Sustainable water use is one of the greatest challenges of irrigated agricultural systems. This study presents the results related to the agronomic and physiological response to the deficit irrigation of almond trees (Prunus dulcis DA Webb Mill cv. Guara) under semiarid Mediterranean conditions in the Guadalquivir river basin (SW Spain). Two deficitirrigation strategies were tested: i) regulate...

Journal: :مدیریت آب و آبیاری 0
زینب میخک بیرانوند دانشجوی کارشناسی ارشد آبیاری و زهکشی، دانشگاه شهید چمران اهواز، دانشکدۀ مهندسی علوم آب، ایران سعید برومند نسب استاد دانشکدۀ مهندسی علوم آب، دانشگاه شهید چمران اهواز، ایران زهرا ایزد پناه استادیار دانشکدۀ مهندسی علوم آب، دانشگاه شهید چمران اهواز، ایران عباس ملکی استادیار دانشکدۀ مهندسی کشاورزی، دانشگاه لرستان، ایران

todays, productivity and efficiency of irrigation have been in the center of the many water-related issues. by using sprinkler irrigation systems in addition to watering easier and automatic, that is a device for raising water application uniformity and efficiency which ultimately will save water consumption and production increase. in this study, four fixed irrigation systems of khorramabad ci...

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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