This paper describes two different solutions for the estimation of weed coverage. Both measuring systems discriminate the weed from the ground by means of the color difference between the weed and ground and can be used to on-line control tractor sprayers in order to reduce weedkiller use. The solutions differ with respect to the sensor type: one solution is based on a digital camera and a comp...

Recently, the development of agricultural technology has been focused on achieving higher reliability and quality work. The aim presented paper was to examine possibilities evaluating work wide-area irrigation machinery by monitoring coefficients uniformity non-uniformity irrigation. object research pivot equipped with sprinklers a total length from 230 540 m. commonly applied parameter for wid...

Air-assisted sprayers are widely employed in orchards, but inappropriate spray parameters can lead to large droplet losses, pesticide waste, and environmental pollution. To investigate the factors affecting loss of an air-assisted sprayer behind canopies, a two-factor, five-level full experiment was conducted actual orchard, where two were power gradient foliage area volume density (FAVD). In a...

Agricultural producers face a multitude of preand post-emergence input application decisions, including herbicides, insecticides, plant growth regulators and harvest aids. Many of these inputs are applied on a repetitive basis, resulting in multiple trips across the field and increased chemical, labor and application costs. Variable rate technology (VRT) for self-propelled, boom-type agricultur...

OBJECTIVE To assess the degree of poisoning in farmers using the erythrocyte acetylcholinesterase (AChE) test before and after the exposure to pesticides in townships in central Benin (Glazoué and Savè) and to identify the associated risk factors. METHODS Using a cross-sectional study design, we recruited 264 farm pesticide sprayers, who have been working for at least 5 years. They completed ...

The prevalence of pleural and pulmonary abnormalities attributed to asbestos among 15,000 workers in a naval dockyard has been studied by means of a one-in-ten sample. Ninety-four per cent. of the men in the sample were examined. Of these, 3% had experienced continuous occupational exposure to asbestos and half of the remainder (representing approximately 6,800 men) had been exposed intermitten...