نتایج جستجو برای: nutrients

تعداد نتایج: 39638  

2016
Susan J Shepherd Miranda CE Lomer Peter R Gibson

Journal: :Nutrients 2009

Journal: :desert 0
h. sarhadi islamic azad university of takestan, qazvin, iran j. daneshian agricultural research, education and extension organization, qazvin, iran s.a. valadabadi islamic azad university of takestan, qazvin, iran h. heidari sharafabad professor, science and research branch, islamic azad university, tehran, iran gh.r. afsharmanesh research, education and natural resources center, southern kerman, iran

for investigation deficit irrigation and nitrogen application effect on nutrients uptake of henna ecotypes, this research was conducted in the form of split-split-plot on the basis of randomized complete block design with four replications in the research field of islamic azad university, jiroft, iran in 2013-2014. the main, sub and sub-sub plot were deficit irrigation (100, 75 and 50% of crop ...

Journal: :حفاظت گیاهان 0
حسینی حسینی راشد محصل راشد محصل نصیری محلاتی نصیری محلاتی حاج محمدنیا قالی باف حاج محمدنیا قالی باف

abstract in order to evaluate the influence of nitrogen application and duration of weed interference on corn (zea mays l.) yield and yield components, a field study was conducted in 2004 at the ferdowsi university of mashhad research field. the experimental design was a randomized complete block with a factorial treatment arrangement replicated three times. nitrogen fertilizer was applied at r...

Journal: :environmental health engineering and management 0
mahdi farzadkia department of environmental health engineering, school of public health, iran university of medical sciences, tehran, iran mohammad hassan ehrampoush department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences, yazd, iran ehsan abouee mehrizi environment research center, department of environmental health engineering, school of public health, iran university of medical sciences, and department of environmental health engineering, faculty of public health, north khorasan university of medical sciences, bojnurd, iran shahram sadeghi department of environmental health engineering, school of public health, student research committee, kurdistan university of medical sciences, sanandaj, iran parvaneh talebi department of environmental health engineering, school of public health, islamic azad university, maybod branch, maybod, iran akbar salehi department of environmental health engineering, school of public health, islamic azad university, maybod branch, maybod, iran

background: investigating the performance of naturally operated treatment plants may be due to the fact that they cannot be operated as desired, or that they should be modified to achieve good performance e.g. for nutrients removal. the advantage of kinetic coefficient determination is that the model can be adjusted to fit data and then used for analyzing alternatives to improve the process. th...

Journal: :international journal of environmental research 2011
f. mohebbi a. mohsenpour azari m. heidari a. asem

occurances of cyanobacterial bloom typically appear in eutrophic lakes which either have been affected by anthropogenic nutrient loading or are naturally rich in nutrients. microcystis blooms have been reported all over the world in freshwater ecosystems mainly due to increased population which results in increased the waste water production. the aim of this study was to recognize the basic re...

2008
Mari L DeMarco Robert J Woods

Oligo- and polysaccharides are infamous for being extremely flexible molecules, populating a series of well-defined rotational isomeric states under physiological conditions. Characterization of this heterogeneous conformational ensemble has been a major obstacle impeding high-resolution structure determination of carbohydrates and acting as a bottleneck in the effort to understand the relation...

2017
Xu Tian Caicui Ding Chong Shen Hui Wang

The soaring number of left-behind children (LBC) in China has raised concerns about whether or not they can receive adequate care. This study investigated the impact of parents' migration on LBC's growth. LBC were divided into father-left children (F-LBC) and at least mother left children (M-LBC), both of which were compared with non-left-behind children (non-LBC) in terms of growth indicators....

پناهنده, جابر, صفایی, میثم , طباطبایی, سید جلال , مطلبی آذر, علیرضا ,

Lettuce (Lactuca sativa L.), as a leafy vegetable, has considerable economic benefits. Although nowadays the tendency is to grow lettuce hydroponically, growers use different nutrients solutions for lettuce production and there is not an optimal nutrients solution for lettuce production in Iran. Therefore, an experiment was carried out to introduce the optimal solution out of current solutions ...

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