A Sprayer for Experimental Plots<sup>1</sup>

Robinson, Robert G.; Dunham, R. S.

doi:10.2134/agronj1950.00021962004200010013x

Cited by 12 publications

(5 citation statements)

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“…O PERATOR-PROPELLED plot sprayers are commonly used for small-plot application of pesticides. The bicycle sprayer (3, 7) and the backpack sprayer (2,4,6,9) are two of the most frequently used operator-propelled methods of application. Both of these methods commonly employ a pressurized system that allows for uniform application over the width of the plot through a spray boom.…”

Section: Sprayer Calibration ----------------mentioning

confidence: 99%

Application Consistency of Operator‐Propelled Field Plot Spray Methods¹

Krall¹,

Packer²,

Davison³

et al. 1985

Agronomy Journal

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Operator‐propelled spray methods were compared for consistency of application under field‐plot conditions. A bicycle sprayer, backpack sprayer, backpack sprayer with a metronome set for normal pace, and the backpack sprayer with a metronome set for a modified pace were tested over two terrains by three operators. Coefficient of variation of application output revealed that an operator can apply pesticides using a backpack sprayer and a metronome with the same application consistency as a speedometer‐aided bicycle sprayer. When the metronome is used to modify pace, ground speed may have greater variance, but should be more consistent than backpack application without a metronome.

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Section: Sprayer Calibration ----------------mentioning

confidence: 99%

Application Consistency of Operator‐Propelled Field Plot Spray Methods¹

Krall¹,

Packer²,

Davison³

et al. 1985

Agronomy Journal

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“…Assessing the efficacy of herbicides for use in weed management research programs requires accurate application systems. Previous attempts at designing spray systems have resulted in hand-carried equipment (Robinson and Dunham 1950), bicycle sprayers (Best and Weinhardt 1960), tractor-mounted sprayers (Best and Thompson 1964;Burnside 1968), and planters modified to apply granular herbicides (Albright and Harvey 1997;Anderson 1974). These systems have largely been designed for use on cropland.…”

Section: Introductionmentioning

confidence: 99%

A Research Plot Herbicide Application System¹

Masters¹,

Grams²,

Klein³

et al. 2002

Weed Technology

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A tractor-mounted, air-pressurized, herbicide application system was designed and constructed for use in weed management research on cropland, pastures, and rangeland. The spray system was designed to minimize wind-induced spray pattern distortion, to enable accurate application of multiple treatments, to withstand the stresses of use on uneven and rough terrain, to apply herbicide treatments reliably, to be easy to transport, to be constructed with readily available spray system components, and to enable quick diagnosis and resolution of operational problems. The spray system has a total shield frame length of 5.2 m. The shielded frame comprises three sections. The two outside sections are connected to the center section by hinges so that they can be folded up and over the center section for transport or storage. Four spray booms are mounted inside the shield with a 50-cm distance between nozzles. Herbicides are usually applied with the bottom of the shield placed 20 cm above the soil or plant surface. This height provides 100% overlap of the spray pattern between adjacent nozzle tips. The spray system has been a durable and reliable tool that accurately and quickly applies herbicide treatments.

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“…Through the years, compressed air-and CXVpressurized knapsack sprayers have been used to apply herbi cides to small field plots (4,7). Both the small amounts of experimental herbicides available for testing and the distance between plot locations favored use of these small, inexpensive sprayers.…”

Section: Introductionmentioning

confidence: 99%

Construction of a High-Clearance Plot Sprayer

Chenault

Wiese

1989

Weed technol.

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Weed control research includes comparisons of herbicides, spray volumes, carriers, and application times in tall crops such as grain sorghum and corn. To accomplish this, a plot sprayer was constructed on a 15-kW tractor with 1.5-m clearance. Ten spray cans held spray mixes that were propelled by compressed air supplied by a two-cylinder single-stage compressor. Using this sprayer, two people could spray up to 66 plots per h to evaluate herbicides, growth regulators, and insecticides in tall weeds and crops using different speeds, controlled droplet applicators, rope wicks, or air-assist nozzles at low- and high-spray volumes.

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A Sprayer for Experimental Plots¹

Cited by 12 publications

References 0 publications

Application Consistency of Operator‐Propelled Field Plot Spray Methods¹

Application Consistency of Operator‐Propelled Field Plot Spray Methods¹

A Research Plot Herbicide Application System¹

Construction of a High-Clearance Plot Sprayer

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A Sprayer for Experimental Plots1

Cited by 12 publications

References 0 publications

Application Consistency of Operator‐Propelled Field Plot Spray Methods1

Application Consistency of Operator‐Propelled Field Plot Spray Methods1

A Research Plot Herbicide Application System1

Construction of a High-Clearance Plot Sprayer

Contact Info

Product

Resources

About

A Sprayer for Experimental Plots¹

Application Consistency of Operator‐Propelled Field Plot Spray Methods¹

Application Consistency of Operator‐Propelled Field Plot Spray Methods¹

A Research Plot Herbicide Application System¹