نتایج جستجو برای: irrigation cycle

تعداد نتایج: 315321  

2016
Josefina Herrera Jorge Gironás Carlos Bonilla Sergio Vera Rodolfo Reyes

Urban development can produce great impacts on local hydrology reducing infiltration and evapotranspiration, and increasing direct runoff volumes. Runoff control practices are implemented at local scales to control flow discharges and preserve the hydrological cycle. These techniques usually have green infrastructure therefore the application in semiarid and Mediterranean regions requires accou...

Journal: :Journal of endodontics 2010
Tina Rödig Meral Bozkurt Frank Konietschke Michael Hülsmann

INTRODUCTION The aim of this study was to compare the efficiency of a sonic device (Vibringe), syringe irrigation, and passive ultrasonic irrigation in the removal of debris from simulated root canal irregularities. METHODS Root canals with 2 standardized grooves in the apical and coronal parts were filled with dentin debris. Three different irrigation procedures were performed with NaOCl (1%...

Journal: :Molecular ecology 2017
Martin Hartmann Ivano Brunner Frank Hagedorn Richard D Bardgett Beat Stierli Claude Herzog Xiamei Chen Andreas Zingg Elisabeth Graf-Pannatier Andreas Rigling Beat Frey

The impact of climate change on the soil microbiome potentially alters the biogeochemical cycle of terrestrial ecosystems. In semi-arid environments, water availability is a major constraint on biogeochemical cycles due to the combination of high summer temperatures and low rainfall. Here, we explored how 10 years of irrigation of a water-limited pine forest in the central European Alps altered...

2012
Ahmed Mohsen

The improvement of irrigation systems in the Nile Delta is one of the most important attempts in Egypt to implement more effective irrigation technology by improving the existing irrigation networks. Demand delivery system in the existing irrigation network is using of mechanical gates structures to automatically divert water from one portion of an agricultural field to another in the desired a...

Journal: :مدیریت آب و آبیاری 0
حسین بابازاده دانشیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، دانشکدۀ کشاورزی و منابع طبیعی، گروه مهندسی آب، تهران، ایران مهدی سرائی تبریزی استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، دانشکدۀ کشاورزی و منابع طبیعی، گروه مهندسی آب، تهران، ایران

soil unsaturated zone is one of the important parts of hydrological cycle that has an especial role in agricultural water resources management. the objective of this research was to determine the amount of root water uptake under simultaneous water, salinity, and nitrogen stresses as prevailing conditions in arid and semi-arid regions. to do so, the experiment was conducted with four quantitati...

2009
Yi Zhang Liping Feng

A field crop irrigation management decision-making system (CropIrri) was developed based on the soil water balance model, crop phenology model, root growth model, crop water production function, and irrigation management model. The irrigation plan is made through predicating of soil water content in root zone and daily crop water requirement using historical and forecasting weather data, measur...

Journal: :Journal of the science of food and agriculture 2011
Shady S Atallah Ibrahim El Saliby Riad Baalbaki Salma N Talhouk

BACKGROUND The potential of Origanum syriacum L. to become a cultivated crop in Lebanon rather than being harvested from the wild was investigated at the production, postharvest and economic levels. Three irrigation schemes were tested on growth parameters of cultivated oregano plants. In order to identify the most quality-preserving drying technique, air-, oven (30 °C)- and freeze-dried oregan...

Employing non-conventional water resources using treatment and recycling is considered as the main resource in addressing future water scarcity. Although non-conventional water recycling has been investigated in details in the literature, its impacts on irrigation-fertilizing systems have not been discussed using thermoeconomic analysis.  In this case study, using a hydroponic greenhouse system...

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