The worn-out nozzles of field sprayers cause agricultural treatment to be uneven and therefore ineffective. Spray are consumable elements the sprayer that subject inspection in event their excessive wear should replaced with new ones ensure proper execution treatment. aim study is propose, using operational research methods, an expert methodology allowing further operation often expensive nozzl...

In China, rice growers predominantly use boom sprayers. However, sprayers have several drawbacks related to poor penetration in the middle and late stages of growth. Several studies shown that canopy-opening device can improve droplet deposition under layers rice. Some doubt efficacy sprayers, whereas others questions about their use. This study aimed address both doubts by evaluating effect sp...

Aiming at addressing the uneven pesticide distribution when spraying high-spindle apple trees, parameters of a homemade profiling boom sprayer were analysed, and optimal parameter combinations determined. Fluent was used to simulate spray for various values. The goodness fit (R2) with experimentally measured data 0.9270, which verified accuracy numerical simulations. response surface methodolog...

Based on the study of dimensional characteristics reeds, a sprayer is proposed for treatment panicles reeds growing in elements irrigation system rice checks. The boom offered has an original shape, sprayers which are located along trajectory parabola, taking into account placement upper points across width channel and equipped with protective chamber device, made form Archimedes spiral pitch e...