نتایج جستجو برای: irrigation water

تعداد نتایج: 577542  

2016
Yunqi Wang Yinghua Zhang Wei Ji Peng Yu Bin Wang Jinpeng Li Meikun Han Xuexin Xu Zhimin Wang

The effects of cultivar mixture cropping on yield, biomass, and water use efficiency (WUE) in winter wheat (Triticum aestivum L.) were investigated under non-irrigation (W0, no irrigation during growth stage), one time irrigation (W1, irrigation applied at stem elongation) and two times irrigation (W2, irrigation applied at stem elongation and anthesis) conditions. Nearly 90% of cultivar mixtur...

2015
Bo Yang Bingjian Cui Decai Jin Xuliang Zhuang Guoqiang Zhuang Zhihui Bai

Great attention has been paid to the potential of wastewater irrigation as a sustainable water source, particularly due to water scarcity and water pollution issues. However, few studies have focused on its adverse effects and on the health risks it may pose. In this study, the physicochemical properties of soils and plants irrigated with rural domestic wastewater and associated microbiological...

2017
Luis E. Ahumada-Orellana Samuel Ortega-Farías Peter S. Searles Jorge B. Retamales

An increase in the land area dedicated to super-high density olive orchards has occurred in Chile in recent years. Such modern orchards have high irrigation requirements, and optimizing water use is a priority. Moreover, this region presents low water availability, which makes necessary to establish irrigation strategies to improve water productivity. An experiment was conducted during four con...

2011
Pasquale Nino Flavio Lupia Filiberto Altobelli Silvia Vanino Iraj Namdarian

Agriculture is the largest user of water on the planet with a 70% of all freshwater withdrawals. Today the growing scarcity and competition for water among agricultural, industrial, commercial and residential sectors are pushing the water managers to allocate water more efficiently. In this scenario the use of methodologies and tools for better monitor and schedule the irrigation water for the ...

Journal: :The American journal of emergency medicine 2002
Beatrix Chandra Bansal Robert A Wiebe Sebrina D Perkins Thomas J Abramo

This study was designed to compare the infection rates of simple lacerations irrigated with tap water versus sterile normal saline before repair. Patients with simple lacerations to an extremity that were less than 8 hours from injury were prospectively enrolled. Exclusions from the study were: dog bites, hand lacerations, immunocompromised patients, and those on antibiotics at the time of inju...

2010
F. Perez-Sarmiento R. Alcobendas O. Mounzer J. Alarcon E. Nicolas

The effects of regulated deficit irrigation (RDI) were studied on 9 year-old apricot-trees (Prunus armeniaca L. cv. ‘Búlida’) grafted on ‘Real Fino’ rootstock. Two irrigation treatments were established. The first, a control treatment, was irrigated to fully satisfy the crop water requirements (100% ETc) and the second, a RDI treatment, was subject to water shortage during the non-critical peri...

2017
Qing Zhou Xiangzheng Deng Feng Wu Zhihui Li Wei Song

Water has become increasingly scarce in northwestern China due to climate change, economic growth and burgeoning population. Improving agriculture water use efficiency is of strategic significance in promoting socio-economic water productivity for arid and semi-arid inland river basins. Based on the household-level data collected in Zhangye City, which is located in the middle reaches of Heihe ...

ژورنال: علوم آب و خاک 2019

In order to investigate the effect of water quantity in subsurface drip irrigation on water use efficiency of palm yield and yield components, and determining suitable irrigation treatments for three different date cultivars, a split plot experiment design in a randomized complete block design with three replications were applied for three cropping years (2013-2016), at Behbahan Agricultural Re...

1999

The effects of magnetic treatment on irrigation water have been studied. We showed that the main effects were the increase of the number of crystallization centers and the change of the free gas content. Both effects improve the quality of irrigation water. As an example, changes in natural water due to magnetic treatment in a commercially available apparatus, Magnalawn 2000, have been studied....

2005

The conservation of water is crucial to sustainable agricultural production in areas of low rainfall or uneven precipitation distribution. Under such circumstances, drip irrigation methods offer a useful option for economic production of vegetable crops. This preliminary study examined the efficacy and performance of two drip irrigation methods on cucumber and tomato crops grown out of season. ...

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