Design and Feasibility of a Permanent Pesticide Application System for Orchards

Carpenter, T. G.; Reichard, D. L.; Wilson, S. M.

doi:10.13031/2013.32256

Cited by 13 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This concept was initially tested by Lombard et al (1966) using high flow impact sprinklers. Carpenter et al, 1985 presented design consideration for setting up a permanent spray application system. The authors concluded that a single sprinkler permanently mounted in the top center of each tree appeared to be an effective method of pesticide application.…”

Section: Introductionmentioning

confidence: 99%

Effect of emitter type and mounting configuration on spray coverage for solid set canopy delivery system

Sharda

Karkee

Zhang

et al. 2015

Computers and Electronics in Agriculture

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Effect of emitter type and mounting configuration on spray coverage for solid set canopy delivery system

Sharda

Karkee

Zhang

et al. 2015

Computers and Electronics in Agriculture

View full text Add to dashboard Cite

“…One of the variants of a fixed spray delivery system, a solid set canopy delivery system (SSCDS), has shown potential to be an alternative to conventional air-assisted sprayers [9][10][11][12]. Typically, an SSCDS is a hydraulic pressure-operated spray delivery system consisting of a network of spray lines and micro-emitters installed within the canopy to achieve effective spray performance while reducing pesticide drift through targeted spraying [10,11,[13][14][15][16]]. An applicator system, with a spray tank, a gasoline pump, and an air-compressor, was used to feed the spray lines with spray liquid and compressed air during different SSCDS operational stages [9,12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Emitter Modifications on Spray Performance of a Solid Set Canopy Delivery System in a High-Density Apple Orchard

et al. 2021

View full text Add to dashboard Cite

Optimally configured solid set canopy delivery systems (SSCDS) can provide adequate spray performance in high-density apple orchards with a minimized risk of off-target pesticide drift. SSCDS configured in a shower-down emitter arrangement have been reported to be the simplest and most economical system. However, existing off-the-shelf emitters used in shower-down configurations have resulted in minimal deposition in lower canopy zones. Therefore, this study was focused on the modifications of off-the-shelf emitters to obtain a desirable spray pattern for adequate spray deposition in all the canopy zones. The modifications include redesigning the impact plate of two existing micro-emitters. Field tests were conducted to evaluate the spray performance of SSCDS with the non-modified emitters (treatment: SD1 and SD3) and contrast the results with modified emitters (treatment: SD2 and SD4). While the treatments SD1 and SD3 had off-the-shelf emitters with swivel plate and static spreader, respectively, the treatment SD2 and SD4 had similar emitters with modified impactor plates. In each treatment block, the apple canopy was divided into six zones and sprayed with a 500 ppm fluorescent tracer solution. Mylar cards and water-sensitive paper samplers were placed on the adaxial and abaxial leaf surfaces in each canopy zone to quantify spray deposition and coverage, respectively. The SSCDS treatments retrofitted with modified emitters, i.e., SD2 and SD4, were observed to have uniform and numerically higher deposition and coverage compared to SD1 and SD3. The SSCDS treatment with modified static spreader (i.e., SD4) resulted in the highest overall spray deposition (1405.7 ± 156.4 ng cm−2 [mean ± standard error]) with improved mid (1121.6 ± 186.9 ng cm−2) and bottom (895.6 ± 149.3 ng cm−2) canopy deposition. Overall, the proposed emitter modification assisted in improved SSCDS spray performances and may be a way forward toward large-scale emplacements of such systems.

show abstract

“…Some researchers focused on the form of spray vehicles such as airblast sprayers or air-assisted sprayers and developed spraying apparatus to improve spray quality and reduce drift loss [2,3]. Carpenter et al [4] proposed a new spray system called permanent pesticide application system, representing a fixed spray system model. As a further development, solid set canopy delivery system (SSCDS) was widely studied as the fix spray system that offered comparable performance as the airblast sprayer, improving the efficiency of the spray operation and reducing drift [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Multivariate Multi-Step Agrometeorological Forecast Model for Rapid Spray

Shi¹,

Chun

2021

IEEE Access

View full text Add to dashboard Cite

The timing of spray application plays an essential role in daily pesticides management. Proper wind speed, air temperature, and relative humidity are the main external factors to improve the efficacy of pesticides, reduce the amount of spray drift and environmental pollution. Very few previous studies have focused on the need for short-term weather prediction in rapid spraying decisions. In this paper, a Convolutional-LSTM encoder-decoder (ConvLSTM-AE) hybrid model for multivariate output and multistep prediction with short time intervals is proposed to predict these three agrometeorological variables in advance. This model can predict daily weather conditions at 15-minute intervals and track the changes of time-varying systems effectively. This method was also compared with other methods such as CNN, multihead CNN, LSTM encoder-decoder, and CNN-LSTM encoder-decoder models. The results show that the proposed model outperforms other models and is suitable for daily weather forecasts in a short time interval. The obtained rapid and accurate prediction results provide a reliable basis for precise spray timing in actual farming.

show abstract

Design and Feasibility of a Permanent Pesticide Application System for Orchards

Cited by 13 publications

References 0 publications

Effect of emitter type and mounting configuration on spray coverage for solid set canopy delivery system

Effect of emitter type and mounting configuration on spray coverage for solid set canopy delivery system

Effect of Emitter Modifications on Spray Performance of a Solid Set Canopy Delivery System in a High-Density Apple Orchard

Multivariate Multi-Step Agrometeorological Forecast Model for Rapid Spray

Contact Info

Product

Resources

About