Results 191 to 200 of about 2,393 (235)
Simulation-aided study of herbicide patch spraying: Influence of spraying features and weed spatial distributions [PDF]
Computers and Electronics in Agriculture, 2021 Abstract Patch spraying is a technological way to reduce herbicide amounts required to control weeds by triggering spraying only where weeds lie. Nevertheless, the adoption rate of this technology by farmers is still low and there is a lack of efficient tools to assess patch herbicide applications depending on spraying features and weed spatial ...
Villette, Sylvain +3 more
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A decision algorithm for patch spraying
Weed Research, 2003SummaryIt has been established that weeds are spatially aggregated with a spatially varying composition of weed species within agricultural fields. Site‐specific spraying therefore requires a decision method that includes the spatial variation of the weed composition and density.
Svend Christensen, T Heisel
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Operational research analysis of patch spraying
Crop Protection, 1993Abstract Sprays to control infestations of major cereal weeds such as wild oats and blackgrass are expensive and these weeds frequently appear to occur in patches. Spraying only those patches with weeds thus appears attractive from both an environmental and economic viewpoint.
E Audsley
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Improving agricultural robot patch-spraying accuracy and precision through combined error adjustment
Computers and Electronics in Agriculture, 2023Deng Sun
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Patch spraying: future role of electronics in limiting pesticide use†
Pest Management Science, 2003AbstractDevelopments relating to the control of application equipment can deliver improvements in pesticide use by better matching applications to target requirements. This may have components relating to the spatial distribution of a weed, pest or disease or methods by which the target, particularly a crop canopy, can be described with respect to a ...
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Autonomous systems for precise spraying – Evaluation of a robotised patch sprayer
Biosystems Engineering, 2016Advances in different technologies, such as global navigation satellite systems, geographic information systems, high-resolution vision systems, innovative sensors and embedded computing systems, are finding direct application in agriculture. These advances allow researchers and engineers to automate and robotise agricultural tasks no matter the ...
Mariano Gonzalez-de-Soto +2 more
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Acta Agriculturae Scandinavica - Section B Soil and Plant Science, 2007 Abstract A major obstacle to patch spraying of broad-leaved weeds in cereals is a cost-effective method to assess within-field heterogeneity of the weed population. One method could be a camera mounted in front of the spraying vehicle, online image analysis, and field sprayer shifting between ‘on’ and ‘off’ as the predefined weed damage threshold level
Therese With Berge +2 more
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The Journal of the Acoustical Society of America, 1995
An acoustic ceiling patch or textured material in the form of a sprayable composition including a base, a filler and a binder as well as a propellant or carrier storable and dispensable from a pressurized dispenser having a delivery nozzle and a removable dispensing tube.
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An acoustic ceiling patch or textured material in the form of a sprayable composition including a base, a filler and a binder as well as a propellant or carrier storable and dispensable from a pressurized dispenser having a delivery nozzle and a removable dispensing tube.
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A stochastic simulation model for evaluating the concept of patch spraying
Weed Research, 1998The long‐term economic benefits of `patch' spraying are likely to be related to the initial spatial distribution of the target weeds, the demographic characteristics of the species and the weed control and crop husbandry practices to which they are subjected.
null PAICE +3 more
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Journal of Pharmaceutical Sciences, 2010
The purpose of this work was to investigate feasibility of a promising topical drug delivery system (TDDS) for sinomenine hydrochloride (SMH), extracted from the Chinese medicinal plant sinomenine acutum and currently used for the treatment of rheumatoid arthritis.
Xinru, Li +7 more
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The purpose of this work was to investigate feasibility of a promising topical drug delivery system (TDDS) for sinomenine hydrochloride (SMH), extracted from the Chinese medicinal plant sinomenine acutum and currently used for the treatment of rheumatoid arthritis.
Xinru, Li +7 more
openaire +2 more sources