نتایج جستجو برای: methiocarb and iron phosphate treatments

تعداد نتایج: 16884170  

Journal: :Pest management science 2002
Louise C Simms Christopher E Mullins Michael J Wilson

Slugs are major pests of oilseed rape that are poorly controlled by conventional bait pellets. A series of laboratory experiments investigated the potential of seed-dressings to control slug damage in this crop. Four compounds: metaldehyde, methiocarb, cinnamamide and 3,5-dimethoxycinnamic acid (DMCA) were tested at a range of doses for phytotoxicity and ability to reduce damage by Deroceras re...

2017
Daniel W. Moulton DANIEL W. MOULTON

Red-winged blackbirds (Agelaius phoeniceus) were offered a choice between cultivated wild rice (Zizania aquatica) treated with methiocarb and untreated wild rice. Unhulled wild rice soaked in methiocarb solution was highly effective in repelling blackbirds at residue levels <132 ppm. The responses of blackbirds to methiocarb residues <132 ppm on soaked rice were variable. Most of the blackbirds...

Journal: :international journal of environmental research 0
m. behbahani civil and environmental engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran m.r. alavi moghaddam civil and environmental engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran m. arami textile engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran

this study presents a comparison between aluminum and iron plate electrodes on phosphate removal from aqueous solutions by electrocoagulation process. the effectiveness of main operational parameters such as initial ph, initial phosphate concentration and current density were examined. in addition, treated solution and sludge characteristics, energy consumption and electrode mass depletion were...

Journal: :مدیریت خاک و تولید پایدار 0
بابک متشرع زاده دانشگاه تهران غلامرضا ثواقبی فیروزآبادی عضو هیات علمی گروه مهندسی علوم خاک دانشگاه تهران منصوره کریمی دانش اموخته

this research was conducted on polluted soil near the lead and zinc factory in zanjan province through which the effects of two organic and three mineral sources were examined on heavy metals fixation in randomized experiment design. experimental treatments includes bagasse and rice husk in three levels: 1.25, 2.5 and 5%, zeolite in three levels: 5%, 10% and 15%, phosphate rock in three rates: ...

Journal: :علوم گیاهان زراعی ایران 0
حسین مقدم پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه زراعت و اصلاح نباتات، تخصص:دکتری اکولوژی گیاهان زراعی محمد دشتکی کارشناس ارشد مراد محمدی دانشجوی ارشد

to evaluate the effects of phosphorous, iron and zinc fertilizers on quantity and quality of turnip, a field experiment was conducted in 2009. the experiment treatments arranged as split plot factorial based on a completley randomized design with 4 replications in the research farm of the university of tehran (karaj-iran). the main factor including three levels of phosphorous (super phosphate t...

ژورنال: علوم آب و خاک 2015
افیونی, مجید, حاج‌عباسی, محمدعلی, خوشگفتارمنش, امیرحسین, شاهمرادی, سجاد, شیروانی, مهران,

In this work, the effect of raw and modified bentonite and zeolite with trivalent iron on the stabilization of water-soluble and adsorbed arsenic in a calcareous soil was studied. Raw and modified bentonite and zeolite were added to the soil in different weights in a completely randomized block design with three replications and kept to field capacity soil moisture content of 80% for 8 weeks. T...

Journal: :Journal of agricultural and food chemistry 2001
T M Primus D J Kohler M Avery P Bolich M O Way J J Johnston

Methiocarb was extracted from surface water samples collected at experimental rice field sites in Louisiana and Texas. The sampling system consisted of a single-stage 90-mm Empore extraction disk unit equipped with a battery-powered vacuum pump. After extraction, the C-18 extraction disks were stored in an inert atmosphere at -10 degrees C and shipped overnight to the laboratory. The disks were...

Journal: :international journal of environmental research 2011
m. behbahani m.r. alavi moghaddam m. arami

this study presents a comparison between aluminum and iron plate electrodes on phosphate removal from aqueous solutions by electrocoagulation process. the effectiveness of main operational parameters such as initial ph, initial phosphate concentration and current density were examined. in addition, treated solution and sludge characteristics, energy consumption and electrode mass depletion w...

Akhbarfar, Ghasem, Nikbakht, Ali, Sheykhan, Abolfazl,

To investigate trunk injection treatment effects on eliminating chlorosis disorder and improving the growth of plane trees (Platanus orientalis L.), an experiment was arranged in a factorial experiment based on a randomized complete block design at Lavark Reasrch Farm, Isfahan University of Technology, Isfahan, Iran, with three replications and four treatments. Treatments consisted of different...

Journal: :تحقیقات آب و خاک ایران 0
نسیم حیدری دانشجوی سابق کارشناسی ارشد گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز عادل ریحانی تبار استادیار گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز نصرت اله نجفی دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز شاهین اوستان دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز

information about forms of phosphorus (p) is important for the evaluation of p status in soil and also understanding of the soil fertility and plant nutrition. to obtain such information and to determine the relationship between the p forms from soil characteristics, amount of different organic and inorganic p forms of 20 soil composite samples of eastern azerbaijan province, iran were determin...

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