نتایج جستجو برای: 1 of herbicides generally

تعداد نتایج: 21479208  

Ahmad Naderi, Mani Mojaddam, Mohammad Abdollahian-Noghabi, Shahram lak, Sina Fallah Tafty,

Herbicide plays the main role in guaranteeing the quantity and quality of food. Soybean reactive oxygen species scavenging system eliminates the herbicides’ side effects on the plant by activating antioxidant enzymes, which affects the yield. So, we investigated this procedure to reveal the effect of herbicides on food production. Methods: Experiments were carried out in two locations of Alborz...

Faezeh Khalilian Hadi Soori

An easy and fast pathway in preparation of organo-functionalized silica in nanosize range withphenyl-terminated group via co-condensation method is reported. Fourier transform infrared(FTIR) spectra confirmed the grafting process and scanning electron microscopy (SEM) imagecorroborated formation of nanosized material. Applicability of phenyl-modified nanosilica wasexamined as a sorbent in dispe...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2006
A Enrich-Prast

The aim of this work was to study the effect of the herbicides glyphosate, nonanoic acid, and dichlorprop-P and the insecticides potassium oil, malation and Pyretrin and their combinations on nitrification. Nitrification was measured in slurries from the eutrophic and shallow Brabrand Lake (Aarhus, Denmark), by inhibiting oxidation of nitrite to nitrate with chloride. All herbicides and insecti...

2012
Bettina Bongiovanni Cintia Konjuh Arístides Pochettino Alejandro Ferri

Chlorophenoxy herbicides are widely used in agriculture and forestry, for the control of broad-leaved weeds in pastures, cereal crops, as well as along public rights of way. Structurally, these herbicides consist of a simple aliphatic carboxylic acid moiety attached to a chlorine-substituted aromatic ring via an ether linkage. One of the most commonly used herbicides of this type is 2,4-dichlor...

Journal: :The Science of the total environment 2000
E T Furlong M R Burkhardt P M Gates S L Werner W A Battaglin

Sulfonylurea (SU), imidazolinone (IMI), and sulfonamide (SA) herbicides are new classes of low-application-rate herbicides increasingly used by farmers. Some of these herbicides affect both weed and crop species at low dosages and must be carefully used. Less is known about the effect of these compounds on non-crop plant species, but a concentration of 100 ng/l in water has been proposed as the...

2009

Weed control efficacy of three herbicides recently registered for use in the South African Sugar Industry is discussed and the phytotoxic effects on sugarcane are presented. Destun, with or without atrazine, is a safe pre-emergence treatment which is useful for the control of Cyperus esculentus, grasses and broadleaf weeds, while some activity on Cyperus rotundus has also been recorded. Dual + ...

Journal: :GM crops 2010
Antonio L Cerdeira Stephen O Duke

Transgenic glyphosate-resistant crops (GRCs) have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. GRCs have generally become dominant in those countries where they have been approved for growing. Potential effects of glyphosate on soil and water are minimal, compared the effects of the herbicides that are replaced when GRCs are adopted. Pe...

Journal: :علوم گیاهان زراعی ایران 0
صبرینه فرزان دانشجوی سابق کارشناسی ارشد دانشگاه گیلان بیژن یعقوبی موسسه تحقیقات برنج کشور جعفر اصغری دانشکده علوم کشاورزی دانشگاه گیلان المیرا محمد وند دانشکده علوم کشاورزی دانشگاه گیلان آتوسا فرح پور دانشجوی سابق کارشناسی ارشد دانشگاه گیلان

this study was carried out in 2008 and 2012 in rice research institute of iran (rasht) in order to study the response of barnyardgrass and rice to oxadiargyl (oxa), butachlor (buta) and thiobencarb (tb) herbicides. treatments included herbicide doses in six levels up to three times the recommended rate, and time of application in two levels before transplanting (bt), and after transplanting (at...

2012
Fátima Sopeña Celia Maqueda Esmeralda Morillo

F. Sopeña, C. Maqueda, and E. Morillo. 2009. Controlled release formulations of herbicides based on micro-encapsulation. Cien. Inv. Agr. 36(1): 27-42. Annual worldwide losses to weeds are estimated to comprise approximately 10-15% of attainable production among principal food sources. Worldwide consumption of herbicides represents 47.5% of the 2 million tons of pesticide consumed each year. How...

2011
Kathleen Greenaway Susan Zabolotniuk

REQUIRED) This paper examines the application of risk management strategies to the protection of customer information privacy at the corporate level of analysis. The emerging discipline of privacy risk management is virtually non-existent in academic discourse despite an expressed and growing interest by regulators and practitioners. We show how the concept and practices of operational risk man...

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