نتایج جستجو برای: keywords herbicide application

تعداد نتایج: 2622883  

2012
C. Zambrano-Navea J. L. Gonzalez-Andujar

Phalaris brachystachys is a common and troublesome weed in winter cereals in Mediterranean countries. A deterministic model was developed to simulate P. brachystachys seedbank dynamics in the wheat-sunflower rotation, a commonly practiced cropping system in southern Spain, under different herbicide-based management scenarios: no herbicide application, full herbicide dose (standard rate) and two...

ایزدی دربندی, ابراهیم, باغستانی, محمد علی, حسن زاده, محمد, راستگو, مهدی, ممنوعی, ابراهیم,

In order to study the efficacy of nicosulfuron in the control of redroot pigweed (Amaranthus retroflexus L.) using adjuvants, a greenhouse experiment was conducted at the Research Greenhouse, Faculty of Agriculture, University of Ferdowsi, Mashhad, Iran. The experiment was carried out as a factorial based on a randomized complete block design with four replications. Treatments included adjuvant...

محمدحسن راشد محصل, , مهدی نصیری ‌محلاتی, , آسیه سیاه‌مرگویی, , حمـید رحیمیان‌ مشهدی, , محمد بنایان‌اول, ,

This study was conducted in a sugar beet field at Collage of Agriculture Experimental Station, Ferdowsi University of Mashhad, Iran. In order to describe the pattern of spatial variations and density of Chenopodium album, Solanum nigrum, Amaranthus sp., Portulaca oleracea, Echinochla crus-galli, and Convulvulus arvense as the main prevalent annual and perennial weeds of sugar beet fields, geost...

2013
H. M. Gleiter

H. M. Gleiter10, N. Ohadb, J. Hirschbergb, R. Frommea, G. Rengera, H. Koikec, and Y. Inouec a M ax-V olm er-Institut für Physikalische und Biophysikalische Chemie, Technische U niversität Berlin, B undesrepublik D eutschland b D epartm ent o f Genetics, The H ebrew U niversity o f Jerusalem , Jerusalem 91904, Israel c The Institute o f Physical and Chem ical R esearch (RIK.EN), W ako, Saitam a ...

Journal: :Plant science : an international journal of experimental plant biology 2014
Maor Matzrafi Yaron Gadri Eyal Frenkel Baruch Rubin Zvi Peleg

Herbicide resistant weeds are becoming increasingly common, threatening global food security. Here, we present BrIFAR: a new model system for the functional study of mechanisms of herbicide resistance in grass weeds. We have developed a large collection of Brachypodium accessions, the BrI collection, representing a wide range of habitats. Wide screening of the responses of the accessions to fou...

2011
Jesusa C. Beltran David J. Pannell Graeme J. Doole

Implications of increasing labour costs and the development of herbicide resistance for profitable weed management in Philippine rice farming systems are investigated. The study employs RIMPhil (Resistance and Integrated Management in the Philippines), a bioeconomic simulation model developed to provide a comprehensive assessment of integrated weed management programmes for the control of annua...

2007
Claudio A. Spadotto Marcus B. Matallo Marco A.F. Gomes Luiz C. Luchini Antonio L. Cerdeira

Differences on response of mathematical models on herbicide leaching in the environment can occur due to the models and their limitations, mainly when using soil lysimeters. Tebuthiuron is a herbicide used in sugarcane crop and is applied in the recharge area of the Guarany aquifer in Brazil, one of the largest in the world. This study was conducted to compare the leaching potential of the herb...

Journal: :Biosensors & bioelectronics 2010
Ya Guo Jinglu Tan

Herbicide application incurs water contamination and thus effective herbicide detection methods are needed. In this research, a kinetic model was developed to describe the processes of herbicide diffusion into plant tissues and binding to the active sites. DCMU [3-(3,4-dichlorophenyl)-1,1-dimethylurea], a commonly used herbicide, was used as a test chemical and its diffusion into plant leaves a...

2008
Zhichen Li Qiu An Changying Ji

The potential impact of herbicide utilization compel people to use new method of weed control. Selective herbicide application is optimal method to reduce herbicide usage while maintain weed control. The key of selective herbicide is how to discriminate weed exactly. The HIS color co-occurrence method (CCM) texture analysis techniques was used to extract four texture parameters: Angular second ...

Journal: :the international journal of humanities 2013
m. r. mohammadi

the concept of tense is an important issue in the morphological and syntactic analysis of words and sentences. the connection between this concept and other parts of the sentence, including the verb, and understanding its structural, semantic and conceptual differences has always been considered by russian and persian linguists. in this article, various types of direct and figurative applicatio...

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