Effects of sprayer speed, spray distance, and nozzle arrangement angle on low-flow air-assisted spray deposition

Dai, Shiqun; Ou, Mingxiong; Du, Wei; Yang, Xuejun; Xiang, Dong; Jiang, Li; Zhang, Tie; Ding, Suming; Jia, Weidong

doi:10.3389/fpls.2023.1184244

Cited by 6 publications

(2 citation statements)

References 32 publications

(37 reference statements)

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“…The study found that the deposit coverage of the proximal canopy and intermediate canopy was 23.67% and 14.52%, respectively. These findings highlight the critical role of the spraying angle and forward speed in achieving optimal coverage percentages …”

Section: Resultsmentioning

confidence: 80%

“…These findings highlight the critical role of the spraying angle and forward speed in achieving optimal coverage percentages. 18 In another study, the impact of various treatments on spray deposits and controlling Asian soybean rust was investigated using a factorial arrangement of 4 × 2, which combined four air levels (0, 9, 11, and 29 km/h) with two nozzle angles (0°and 30°) and an AXI 110015 nozzle. The results showed that a nozzle angle of 30°combined with the maximum air speed resulted in the highest spray deposits on the soybean crops, leading to an improved control of Asian soybean rust and increased productivity.…”

Section: Optimizing a Regression Model For Maximizing Soybean Seed Co...mentioning

confidence: 99%

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Enhancing Soybean Seed Coverage with Rhizobium Inoculation in Pneumatic Row Crop Planters: A Strategy for Improved Crop Yield

Safari,

Dehghan,

Rohani

2023

ACS Agric. Sci. Technol.

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Soybean seed coating with Rhizobium inoculum is a conventional, yet expensive, practice that may result in seed damage and reduced productivity. To address these issues, in this study we developed and installed a spraying novel system on row planters that directly sprays the inoculum solution onto the seeds and furrows. We optimized the system by using the response surface methodology and a central composite design with 20 tests to evaluate the effects of the forward speed, flow rate, and spraying angle on the seed coverage. Our results show that all three variables have significant effects on seed coverage, and we obtained maximum and average seed coverages of 95.38% (experimental) or 96% (predicted), respectively. We developed a quadratic model that accurately predicts the seed coverage as a function of the forward speed, flow rate, and spraying angle, achieving a coefficient of determination of 97.24%. The optimal settings for the best seed coverage were determined to be a forward speed of 4.65 km/h, a nozzle flow rate of 400 mL/min, and a nozzle angle of 46°. Our study presents a practical and cost-effective solution for improving soybean seed coverage and enhancing crop productivity.

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Section: Resultsmentioning

confidence: 80%

Section: Optimizing a Regression Model For Maximizing Soybean Seed Co...mentioning

confidence: 99%

Enhancing Soybean Seed Coverage with Rhizobium Inoculation in Pneumatic Row Crop Planters: A Strategy for Improved Crop Yield

Safari,

Dehghan,

Rohani

2023

ACS Agric. Sci. Technol.

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Spray performance of flexible shield canopy opener and rotor wind integrated boom‐sprayer application in soybean: effects on droplet deposition distribution

Yu,

Cui,

Cui

et al. 2024

Pest Management Science

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BACKGROUNDCanopy density is high during mid to late soybean growth due to dense planting to improve yield, which seriously affects the control of pests and diseases. The dilemmas of difficult droplet penetration, non‐uniform deposition, and droplet drift in field spraying remain challenges to precise control of droplet distribution. This paper proposed a novel spraying application mode combined Flexible Shield Canopy Opener (FSCO) with rotary wind. The design of the key components of the new boom spraying machine are described. The effects of the comparative spraying modes on spray deposition and droplet drift in field validation test were studied to explore the feasibility of the novel spraying application.RESULTSThe study found that droplet coverage inside the soybean canopy was significantly affected by spraying mode, rotor wind speed, and opener depth. The spraying operation that used the FSCO and rotor wind integrated mode was optimal for droplet uniformity on the adaxial and abaxial surfaces of the canopy leaves, with droplet uniformity indices of 0.966 and 0.934, respectively. At rotor wind speed of 6 m/s and opener depth of 15 cm, the soybean canopy droplet coverage uniformity effect achieved the highest composite score of 0.937. The spraying mode used in this study improved droplet coverage uniformity by 82.30% and droplet anti‐drift performance improved by 99.73% compared to the conventional boom spraying mode.CONCLUSIONThe study shows validity of the spraying mode combined FSCO with rotary wind to open dense canopy and improved droplet deposition uniformity in canopy and anti‐drift performance.This article is protected by copyright. All rights reserved.

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Assessment of spray nozzles on water distribution on cow’s surface and efficiency of water utilization by CFD

Yang,

Choi,

Rong

et al. 2024

Computers and Electronics in Agriculture

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Effects of sprayer speed, spray distance, and nozzle arrangement angle on low-flow air-assisted spray deposition

Cited by 6 publications

References 32 publications

Enhancing Soybean Seed Coverage with Rhizobium Inoculation in Pneumatic Row Crop Planters: A Strategy for Improved Crop Yield

Enhancing Soybean Seed Coverage with Rhizobium Inoculation in Pneumatic Row Crop Planters: A Strategy for Improved Crop Yield

Spray performance of flexible shield canopy opener and rotor wind integrated boom‐sprayer application in soybean: effects on droplet deposition distribution

Assessment of spray nozzles on water distribution on cow’s surface and efficiency of water utilization by CFD

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