نتایج جستجو برای: 1 of herbicides generally

تعداد نتایج: 21479208  

2009
P. H. Rathod R. B. Patel Amit J. Jhala

The addition of organic manure affects the biological, chemical and physical properties of soil that control the fate of herbicides. Three dinitroaniline herbicides were studied to asses their persistence, dissipation and residue management in sandy loam soil with and without addition of farmyard manure (FYM) under middle western Indian agro-climatic conditions. The herbicides, pendimethalin [N...

Photosynthesis is an essential part of the plant function and metabolism and a number of herbicides inhibit certain photosynthetic activities. The aim of this study was to evaluate the effect of some herbicides including Topik, Titos, Equip, Mister, Lumax, Bromicide and Oltima on the photosynthetic efficiency of three corn cultivars (CC-260, 400, 704) in response to salicylic acid (SA) treatmen...

2012
Tayeb Wafa Nakbi Amel Chaieb Ikbal Hammami Mohamed

Phenoxyacetic herbicides constitute one of the largest groups of herbicides sold in the world. Among them, since 1946, 2,4-Dichlorophenoxyacetic acid (2,4-D), whose structural formula is shown in Fig. 1, has been the most used. Nowadays, new formulations of 2,4-D are continuously made available. In fact, there are over 600 2,4-D products currently on the market. For over 60 years, 2,4-D has bee...

Journal: :پژوهش های حبوبات ایران 0
موسوی موسوی ثابتی ثابتی جعفرزاده جعفرزاده بزازی بزازی

the lack of herbicides for broadleaf weed control is one of the most important challenges of chickpea production in iran. field experiments were conducted in lorestan, kermanshah, east and west azerbaijan to evaluate weed control and chickpea response to application of some herbicides in 2006. there were four replications at each site and treatments were arranged in a randomized complete block ...

Journal: :The Journal of heredity 2003
R P Sabba I M Ray N Lownds T M Sterling

The noxious weed yellow starthistle (Centaurea solstitialis L.) can be controlled effectively at the seedling stage with foliar application of the auxinic herbicides picloram or clopyralid. Although resistance to these herbicides is rare, a yellow starthistle biotype resistant to picloram and cross-resistant to clopyralid was observed in 1989 near Dayton, WA, in a pasture that had been subjecte...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1390

section{introduction} the concept of {sl cartan geometry} appeared at the beginning of the twentieth century, when {e}lie cartan was working on the so-called {sl equivalence problem}, the aim of which is to determine whether two given geometric structures can be mapped bijectively onto each other by some diffeomorphism. this problem can be considered in many different contexts, such as ...

Journal: :تولید گیاهان زراعی 0

in order to study of efficiency total dual purpose herbicide and mixed granestar and acsiyal herbicides, and response of wheat at growth various stages to the aforementioned herbicides, an experiment with randomized complete block design with three replications were conducted during 2008-2009 in a field experiment at ramin agricultural and natural resources university, khouzestan. treatments in...

2006
D. B. South

In the South, most nursery managers have relied on methyl bromide for weed control in hardwood seedbeds. When methyl bromide is no longer available, handweeding times will likely increase unless management regimes adapt to the change. Some nursery managers will increase use of both sanitation practices and herbicides. Although several herbicides are registered for use on hardwoods, some can inj...

Journal: :Sustainability 2021

Glyphosate-based herbicides (GBHs) have become the leading agricultural used globally since development of genetically engineered herbicide-tolerant crops. This paper investigates whether GBHs are consistent with or supportive sustainable agriculture. Agricultural sustainability is defined by generally agreed upon goals: (1) promoting agroecology; (2) protecting soils and Earth’s natural resour...

Journal: :The Science of the total environment 2011
P Chris Wilson Brian J Boman

Much uncertainty exists regarding the discharge characteristics of terrestrial-use herbicides into aquatic systems. This study evaluated the temporal distribution and concentrations of five commonly used herbicides (atrazine, bromacil, metolachlor, norflurazon, and simazine) in a typical South Florida watershed. Surface water samples were collected weekly over a 3-yr period from four canals and...

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