نتایج جستجو برای: nutrient element

تعداد نتایج: 271251  

2011
D. A. Lipson W. C. Oechel

Introduction Conclusions References

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Journal: :International journal of phytoremediation 2009
P Madejón P Burgos F Cabrera E Madejón

We evaluate the mid-term effects of two amendments and the establishment of R. officinalis on chemical and biochemical properties in a trace element contaminated soil by a mine spill and the possible use of this plant for stabilization purposes. The experiment was carried out using containers filled with trace element polluted soil, where four treatments were established: organic treatment (bio...

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Journal: :Toxicology letters 2004
Biswajit Mukherjee Balaram Patra Sushmita Mahapatra Pratik Banerjee Amit Tiwari Malay Chatterjee

The biological image of the transition element vanadium ferments a great deal of contradiction-from toxicity to essentiality. Importance of this element as micro-nutrient is yet to be unequivocally accepted by biologists and biomedical scientists. In spite of toxicity, it seems interesting to analyze the different biological roles of the element. Vanadium compounds have been proven to be associ...

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2003
TRACY N. WIEGNER SYBIL P. SEITZINGER DENISE L. BREITBURG JAMES G. SANDERS

Responses of autotrophic and heterotrophic processes to nutrients and trace elements were examined in a series of experimental estuarine food webs of increasing trophic complexity using twenty 1-m3 mesocosms. Nutrients (nitrogen and phosphorus) and trace elements (a mix of arsenic, copper, cadmium) were added alone and in combination during four experimental runs spanning from spring 1997 to sp...

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2012
Jan Vymazal Thomas E. Jordan Dennis F. Whigham Kirsten Hofmockel

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2017
Yi Hu Jon G. Sanders Piotr Łukasik Catherine L. D'Amelio John S. Millar Yemin Lan Justin A. Newton Mark Schotanus John T. Wertz Naomi E. Pierce Corrie S. Moreau Philipp Engel Jacob A. Russell

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2011
Cory Johnson Tiffanie Moss Christopher Cullis

Some flax varieties respond to nutrient stress by modifying their genome and these modifications can be inherited through many generations. Also associated with these genomic changes are heritable phenotypic variations. The flax variety Stormont Cirrus (Pl) when grown under three different nutrient conditions can either remain inducible (under the control conditions), or become stably modified ...

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ژورنال: فرآیند و کارکرد گیاهی 2018
ابوالقاسمی, رضا, حقیقی, مریم,

Selenium (Se) is an essential element for human and livestock health with antioxidant and anticancer effect. Although Se is not an essential element for plant growth,but improve the plant growth. A hydroponic experiment was conducted in the greenhouse of Isfahan University of Technology in winter of 1391. The completely randomized design was arranged. Se in four concentration 0, 2.5, 5 and 10 &...

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ژورنال: علوم آب و خاک 2015
جعفرزاده حقیقی فرد, نعمت اله, دیناروند, مهری, پرنیان, امیر, چرم, مصطفی,

Cadmium is a trace element which is harmful to life and is considered as a dangerous pollutant. This element leads to pollution and reduction of water quality and sometimes even to toxicity through contaminated sources such as wastewater (municipal and industrial). Due to the growing population's need for more water resources and increased water resource pollution, a need for new and inexpensiv...

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ژورنال: Hormozgan Medical Journal 2008
Ladonni, H, Nasirian, H, Poudat, A,

Introduction: In order to control the diseases that are transmitted to human and animal by arthropod vectors, it is necessary to investigate vectors and to recognize control methods as well. These studies are applicable by rearing the colonies of arthropod blood-feeders like malaria and leishmaniasis in laboratory. The purpose of this study was to produce mass production of Anopheles stephens...

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