Results 71 to 80 of about 83,451 (223)

Herbicide resistance: Development of wheat production systems and current status of resistant weeds in wheat cropping systems

open access: yesCrop Journal, 2019
Herbicide resistance in crops has extended the scope of herbicide applications to control weeds. The introduction of herbicide resistant crops resulted in a major shift in the way that herbicides are used in many crops, but not necessarily increased the ...
Sridevi Nakka   +3 more
doaj  

Voltammetric Determination of Paraquat Using Graphite Pencil Electrode Modified with Doped Polypyrrole [PDF]

open access: yesarXiv, 2016
Recognition and determination of paraquat (PQ) using graphite pencil electrode (GPE) modified with polypyrrole (Ppy) doped with Eriochrome blue-black B (EBB) is reported. To that end, a thin film of Ppy was deposited onto the electrode surface by electropolymerization in the presence of a functional doping ion, EBB.
arxiv  

Marginalization in nonlinear mixed-effects models with an application to dose-response analysis [PDF]

open access: yesarXiv, 2017
Inference in hierarchical nonlinear models needs careful consideration about targeting parameters that have either a conditional or population-average interpretation. For the special case of mixed-effects nonlinear sigmoidal models we propose a method for the estimation of derived parameters with a marginal interpretation, but also maintaining the ...
arxiv  

Real-time Semantic Segmentation of Crop and Weed for Precision Agriculture Robots Leveraging Background Knowledge in CNNs [PDF]

open access: yesarXiv, 2017
Precision farming robots, which target to reduce the amount of herbicides that need to be brought out in the fields, must have the ability to identify crops and weeds in real time to trigger weeding actions. In this paper, we address the problem of CNN-based semantic segmentation of crop fields separating sugar beet plants, weeds, and background solely
arxiv  

The Effect of Herbicides on Hydrogen Peroxide Generation in Isolated Vacuoles of Red Beet Root (Beta vulgaris L.) [PDF]

open access: yesJournal of Stress Physiology & Biochemistry, 2015
Influence of herbicides on the hydrogen peroxide generation in vacuolar extracts of red beet root (Beta vulgaris L.) was investigated. Belonging to different chemical classes of herbicide compounds have been used. Herbicides differ from each other in the
E.V. Pradedova   +3 more
doaj  

BRTSim, a general-purpose computational solver for hydrological, biogeochemical, and ecosystem dynamics [PDF]

open access: yesarXiv, 2019
This paper introduces the recent release v3.1a of BRTSim (BioReactive Transport Simulator), a general-purpose multiphase and multi-species liquid, gas and heat flow solver for reaction-advection-dispersion processes in porous and non-porous media with application in hydrology and biogeochemistry.
arxiv  

Herbicide and nitrogen rate effects on weed suppression, NĀ uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.)

open access: yesGlobal Ecology and Conservation, 2019
Improved weed management strategies are imperative in oilseed rape production. Herbicide and nitrogen (N) fertilization could be integrated into weed management as these are known to affect weed emergence and growth.
Li Wang   +4 more
doaj  

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