نتایج جستجو برای: adequacy irrigation adirr

تعداد نتایج: 57539  

2014
Amthal K. Mousa Muayad S. Croock Mohammed N. Abdullah Muhammad Umair R. Usman Xiaohong Peng Guodong Liu Peng Xiaohong Mo Zhi Xiao Laisheng Guohuan Lou XiuLi Zeng Ketema Tilahun Zeleke

In this paper, an efficient irrigation system is proposed based on computing evapotranspiration (ET) and the required irrigation quantity using fuzzy inference methodology. The aim of this system is to schedule irrigation according to the particular requirements of a crop and to the change in various climatological parameters and other factors. This is to avoid overor under-watering which signi...

Journal: :Chemosphere 2007
Y Zhang D Wang

The environmental fate of fumigants methyl isothiocyanate (MITC) and chloropicrin (CP) is of great concern for potential air and groundwater contamination while retaining sufficient concentrations for pest control efficacy. The emission, gas phase distribution, leaching, and persistence of MITC and CP were examined in repacked columns filled with sandy soils under three surface conditions: tarp...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Céline Bonfils David Lobell

Understanding the influence of past land use changes on climate is needed to improve regional projections of future climate change and inform debates about the tradeoffs associated with land use decisions. The effects of rapid expansion of irrigated area in the 20th century has remained unclear relative to other land use changes, such as urbanization, that affected a similar total land area. Us...

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...

2017
Masashi KUWABARA Takashi SADATOMO Kiyoshi YUKI Keisuke MIGITA Yasutaka IMADA Kiyoharu SHIMIZU Takeshi HARA Hideo OBA Kaoru KURISU

Chronic subdural hematomas (CSDHs) occur often in elderly persons and can occur with mild head trauma. With burr-hole irrigation as standard treatment, symptoms usually improve and can be cured, and outcomes are good, but postoperative recurrences are a common problem. This study investigated the effectiveness and recurrence rates when using artificial cerebrospinal fluid (ACF) instead of norma...

2017
Pablo Castelo-Baz Purificación Varela-Patiño Manuel Ruíz-Piñón Francesc Abella Ramón Miguéns-Vila Benjamín Martín-Biedma

BACKGROUND Irrigation of the root canal system is an essential step in the endodontic treatment. The aim of this article is to introduce continuous apical negative-pressure ultrasonic irrigation (CANUI), a new irrigation concept, and compare the characteristics of this new technique with current devices for activating the irrigant. MATERIAL AND METHODS CANUI is designed for cleaning and disin...

2012

In most wheat growing moderate regions and especially in the north of Iran climate, is affected grain filling by several physical and abiotic stresses. In this region, grain filling often occurs when temperatures are increasing and moisture supply is decreasing. The experiment was designed in RCBD with split plot arrangements with four replications. Four irrigation treatments included (I0) no i...

Journal: :ISPRS Int. J. Geo-Information 2017
Mohammad Abuzar Des Whitfield Andy McAllister

Pasture performance of 924 dairy farms in a major irrigation district of Australia was investigated for their water use and water productivity during the 2015-2016 summer which was the peak irrigation period. Using satellite images from Landsat-8 and Sentinel-2, estimates of crop coefficient (Kc) were determined on the basis of a strong linear relationship between crop evapotranspiration (ETc) ...

Journal: :International endodontic journal 2007
L W M van der Sluis M Versluis M K Wu P R Wesselink

Ultrasonic irrigation of the root canal can be performed with or without simultaneous ultrasonic instrumentation. When canal shaping is not undertaken the term passive ultrasonic irrigation (PUI) can be used to describe the technique. In this paper the relevant literature on PUI is reviewed from a MEDLINE database search. Passive ultrasonic irrigation can be performed with a small file or smoot...

2002
Frank Casey Patrick Byrne Richard Weldon

This report investigates the costs and benefits associated with the conversion from semi-enclosed seep irrigation to either automated seep or automated sub-drip irrigation for potato production in Northeast Florida. These costs and benefits are estimated at the level of the individual grower and for the public at large. The analytical tools in the report include financial budgeting and regressi...

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