Results 11 to 20 of about 315,389 (286)

Hyperspectral Inversion Model of Chlorophyll Content in Peanut Leaves

open access: yesApplied Sciences, 2020
The purpose of this study is to determine a method for quickly and accurately estimating the chlorophyll content of peanut plants at different plant densities.
Haixia Qi   +6 more
doaj   +1 more source

Evaluation of laser range-finder mapping for agricultural spraying vehicles [PDF]

open access: yes, 2013
In this paper, we present a new application of laser range-finder sensing to agricultural spraying vehicles. The current generation of spraying vehicles use automatic controllers to maintain the height of the sprayer booms above the crop. However, these
A Nüchter   +10 more
core   +1 more source

Insecticide resistance status of the malaria mosquitoes: Anopheles gambiae and Anopheles funestus in eastern and northern Uganda

open access: yesMalaria Journal, 2018
Background Uganda’s malaria burden includes the sixth highest number of annual deaths in Africa (10,500) with approximately 16 million cases (2013) and the entire population at risk.
Michael Okia   +9 more
doaj   +1 more source

Design and Experiment of a Variable Spray System for Unmanned Aerial Vehicles Based on PID and PWM Control

open access: yesApplied Sciences, 2018
Unmanned aerial vehicle (UAV) variable-rate spraying technology, as the development direction of aviation for plant protection in the future, has been developed rapidly in recent years.
Sheng Wen   +5 more
doaj   +1 more source

Gypsy Moth (Lepidoptera: Lymantriidae): History of Eradication Efforts in Michigan, 1954-1981 [PDF]

open access: yes, 2017
Gypsy moth, Lymantria dispar, was first discovered in Michigan in 1954, Aerial spraying operations were conducted to eradicate gypsy moth infestations with synthetic insecticides (DDT, carbaryl, and diflubenzuron)
Hanna, Murray
core   +2 more sources

A reduction in malaria transmission intensity in Northern Ghana after 7 years of indoor residual spraying

open access: yesMalaria Journal, 2017
Background Indoor residual spraying (IRS) is being implemented as one of the malaria prevention methods in the Northern Region of Ghana. Changes in longevity, sporozoite and entomological inoculation rates (EIRs) of major malaria vectors were monitored ...
Sylvester Coleman   +13 more
doaj   +1 more source

The Technical Parameters of Seaweed Biostimulant Spray Application as a Factor in the Economic Viability of Soybean Production

open access: yesApplied Sciences, 2023
Application of biostimulant in the form of a spraying requires appropriate selection of technical parameters. One of the key factors in ensuring that the liquid is sprayed correctly is the choice of suitable spray nozzles.
Anna Krawczuk   +7 more
doaj   +1 more source

Droplet Deposition and Control of Planthoppers of Different Nozzles in Two-Stage Rice with a Quadrotor Unmanned Aerial Vehicle

open access: yesAgronomy, 2020
Previous studies have confirmed that choosing nozzles that produce coarser droplets could reduce the risk of pesticide spray drift, but this conclusion is based on a large volume of application, and it is easy to ignore how this impacts the control ...
Pengchao Chen   +7 more
doaj   +1 more source

Research into the process of spraying complex titanium and zirconium nitride on structural steel and reaction times relating to the final finish and quality obtained

open access: yesBudownictwo o Zoptymalizowanym Potencjale Energetycznym, 2021
This article presents a literature review into the current state of the theory and practice of spraying complex titanium and zirconium nitride on steel P6M5, as well as a study of the effect of spraying time on the structural and mechanical ...
Olena Gumen, Adam Ujma, Mariia Kruzhkova
doaj   +1 more source

Effect of foliar application urea and micro elements on germination characteristic, seedling vigour and emergence seeds generative chickpea (Cicer arietinum L). [PDF]

open access: yesعلوم و فناوری بذر ایران, 2017
In order to determine the effects of the foliar applicationof ureaand micro elements during growth periods of maternal plants on germination, vigor and greening of produced chickpea seeds (Kabuli), an experiment was carried out in a randomized complete ...
H. Gholami   +3 more
doaj   +1 more source

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