نتایج جستجو برای: border irrigation

تعداد نتایج: 76607  

2014
Qing-Han Gao Jin-Gang Yu Chun-Sen Wu Zhi-Sheng Wang You-Ke Wang De-Lan Zhu Min Wang

Loess Plateau is a typical rain-fed farming region, facing the threat of drought. Irrigation method is among the most important factors affecting jujube quality. This study investigated the response of Ziziphus jujuba Mill. cv. Lizao quality to three different irrigation methods (drip-, pipe- and surge spring root irrigation) combining two water levels (20 m(3)/hm(2) and 120 m(3)/hm(2)). The ef...

2017
Arnald Puy Rachata Muneepeerakul Andrea L. Balbo

This paper presents a systematic study of the relation between the size of irrigation systems and the management of uncertainty. We specifically focus on studying, through a stylized theoretical model, how stochasticity in water availability and taxation interacts with the stochastic behavior of the population within irrigation systems. Our results indicate the existence of two key population t...

2014
Soroosh Sorooshian Amir AghaKouchak Jialun Li

In this study, a regional climate model (RCM) is employed to investigate the effect of irrigation on hydrology over California through implementing a “realistic irrigation” scheme. Our results indicate that the RCMwith a realistic irrigation scheme commonly practiced in California can capture the soil moisture and evapotranspiration (ET) variation very well in comparison with the available in s...

Journal: :Human & experimental toxicology 1992
T Mizutani M Yamashita N Okubo M Tanaka H Naito

1. The efficacy of whole bowel irrigation with a solution containing either polyethylene glycol (PEG) with electrolyte or an adsorbent (Kayexalate with a cathartic (sorbitol) was investigated in 18 dogs who had been given 250 mg kg-1 paraquat dichloride via a jejunal tube to eliminate the influence of gastric absorption. 2. Plasma paraquat concentrations 2 and 3 h after the initiation of bowel ...

Journal: :American journal of infection control 2014
Sue Barnes Maureen Spencer Denise Graham Helen Boehm Johnson

Surgical wound irrigation has long been debated as a potentially critical intraoperative measure taken to prevent the development of surgical site infection (SSI). Unlike many other SSI prevention efforts, there are no official practice guidelines or recommendations from any major medical group for the practice of surgical irrigation. As a result, practitioner implementation of the 3 major irri...

Journal: :The British journal of ophthalmology 2003
A W Ferguson J A Scott J McGavigan R A Elton J McLean U Schmidt R Kelkar B Dhillon

BACKGROUND/AIM Povidone-iodine (PI, Betadine) is routinely used as a preoperative topical antiseptic in cataract surgery as it has been shown to reduce the incidence of postoperative endophthalmitis. However, the concentration used clinically is variable. In vitro studies have shown that PI is paradoxically more effective at lower concentration. This study was undertaken to determine if this ef...

2015
Francesco Vuolo Laura Essl Clement Atzberger

This paper presents the results of a collaborative work with farmers and a cost-benefit analysis of geospatial technologies applied to irrigation water management in a semi-arid agricultural area in Lower Austria. We use Earth observation (EO) data to estimate crop evapotranspiration (ET) and webGIS technologies to deliver maps and irrigation advice to farmers. The study reports the technical a...

2016
Akhilesh Shewale Meenu Taneja Bhasin Nidhi Bhatia Akriti Agarwal

The primary purpose of irrigation is to nonspecifically reduce the bacteria and their by-products that lead to the initiation or progression of periodontal diseases. Supragingival irrigation allows for the disruption and dilution of marginal bacteria and their by-products which helps to prevent or treat gingivitis. Subgingival irrigation interferes with the complex ecosystem required for the in...

2013
E. Playán J. Cavero A. Martínez-Cob J. M. Faci

In this work, applications of the coupled solid set sprinkler irrigation and crop model AdorSim introduced in the companion paper are presented. The sprinkler irrigation model is based on ballistic theory, while the crop model is based on CropWat. AdorSim was used to evaluate the effect of sprinkler spacing on seasonal irrigation water use (WU) and crop yield. The most relevant results were rel...

2014
J. Ippolito D. Bjorneberg

Furrow irrigation detaches and transports soil particles and subsequently nutrients such as phosphorus (P). To reduce the risk of erosion and offsite P movement, producers can convert from furrow to sprinkler irrigation. We completed research on soil P dynamics in furrow versus sprinkler irrigated soils from four paired fields in south central Idaho. Surface soils (0-2.5 inches) were obtained f...

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