Foliar deposition and coverage on young apple trees with PWM-controlled spray systems

R Salcedo, H Zhu, Z Zhang, Z Wei, L Chen… - … and Electronics in …, 2020 - Elsevier
Pulse width modulation (PWM) technology is recently introduced into orchard air-blast
sprayers to achieve precision applications of plant protection products and reduce risks to …

[BUCH][B] Agricultural automation: Fundamentals and practices

Q Zhang, FJ Pierce - 2013 - books.google.com
Agricultural automation is the core technology for computer-aided agricultural production
management and implementation. An integration of equipment, infotronics, and precision …

Analyzing the nozzle spray fan pattern of an agricultural sprayer using pulse width modulation technology to generate an on-ground coverage map

DL Mangus, A Sharda, A Engelhardt… - Transactions of the …, 2017 - elibrary.asabe.org
Chemical application is an integral part of crop care. Today, advanced sprayers
automatically control individual boom sections and nozzles to accommodate increased …

Development of high-speed camera hardware and software package to evaluate real-time electric seed meter accuracy of a variable rate planter

DL Mangus, A Sharda, D Flippo, R Strasser… - … and Electronics in …, 2017 - Elsevier
Electric drive seed metering systems have become common for planting row-crop seed to
accommodate increased machine size and planting speeds and to allow individual row unit …

Field Sprayer with Application Rate Control Using Fast Response Proportional Valves under Variable Speed Conditions

H Karadol, A Aybek, M Ucgul, H Kuzu, M Gunes - Agriculture, 2024 - mdpi.com
In modern agriculture, which is characterised by dynamic field environments, challenges are
faced in maintaining consistent application rates due to varying tractor speeds, field …

Nozzle flow rate, pressure drop, and response time of pulse width modulation (PWM) nozzle control systems

J Fabula, A Sharda, Q Kang… - Transactions of the …, 2021 - elibrary.asabe.org
Highlights Nozzle pressure drop varies between PWM systems at different application rates
and application pressures. Change in flow rate with respect to the expected flow differs …

Field application uniformity and accuracy of two rate control systems with automatic section capabilities on agricultural sprayers

A Sharda, JD Luck, JP Fulton, TP McDonald… - Precision …, 2013 - Springer
The adoption of automatic section control (ASC) on agricultural sprayers remains popular
since it reduces overlap and application in unwanted areas leading to input savings and …

Spray deposition and quality assessment at varying ground speeds for an agricultural sprayer with and without a rate controller

M Sapkota, S Virk, G Rains - AgriEngineering, 2023 - mdpi.com
Ground speed variations are common and unavoidable during pesticide applications with
agricultural sprayers. Field tests were conducted to evaluate the effect of varying ground …

[BUCH][B] Signals in the Soil

A Salam, U Raza - 2020 - Springer
The farming sector is mainly responsible for the world's food needs; however, land
degradation, contamination, poor agricultural techniques and practices, and urbanization …

[HTML][HTML] Comparative performance of a sprayer rate controller and pulse width modulation (PWM) systems for site-specific pesticide applications

R Meena, S Virk, G Rains, W Porter - AgriEngineering, 2024 - mdpi.com
With recent advances in spray technology and rising interest in site-specific applications, it is
imperative to assess the performance of the latest application technologies to ensure …