Home > Archive>Volume 44, Issue 2, 2025 >284-292. DOI:10.13300/j.cnki.hnlkxb.2025.02.029
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Optimizing parameters for spraying foliar fertilizer on Acanthopanax trifoliatus with unmanned aerial vehicle
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Affiliation:

1.College of Mathematics and Informatics， South China Agricultural University， Guangzhou 510642，China;2.National Center for International Collaboration Research on Precision Agricultural Aviation Pesticide Spraying Technology， Guangzhou 510642， China;3.Ministry of Agriculture and Rural Affairs Key Laboratory of Smart Agricultural Technology in Tropical South China， South China Agricultural University， Guangzhou 510642， China

Clc Number:

S252.2

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    Abstract:

    The XAG P20-2019 quadcopter UVA was used to spray foliar fertilizer on Acanthopanax trifoliatus to study the feasibility and optimal combination of working parameters for spraying foliar fertilizer on Acanthopanax trifoliatus with unmanned aerial vehicle （UAV）. The orthogonal experiment with three factors and three levels was designed to investigate the effects of the concentration of spraying， the speed of flight and the height of working on the quality of spraying， the yield of Acanthopanax trifoliatus and the quality of leaf. The results showed that the speed of flight and the height of working had significant effects on the quality of spraying， and the density of droplet deposition had a strong positive correlation with the amount of droplet deposition. The effects of the concentration of spraying， the speed of flight and the height of working on the yield and quality of leaf in Acanthopanax trifoliatus were significant. The density and the amount of droplet deposition was 188.212/cm2 and 0.269 μg/cm2 when the concentration of spraying， the speed of flight and the height of working was 5 times the concentration recommended，1.0 m/s and 2.0 m. At this time， the effect of spraying foliar fertilizer on Acanthopanax trifoliatus with UAV was the best， with a 27.46% increase in the yield of Acanthopanax trifoliatus and a 33.23% increase in the content of chlorophyll in Acanthopanax trifoliatus compared with that of the control. It is indicated that it is feasible to use UAV to spray foliar fertilizer with high concentration on Acanthopanax trifoliatus. It will provide references for using the same type of UVA to spray foliar fertilizer.

    Fig.1 Diagram of experiment plot
    Fig.2 Diagram of sampling points location in the experiment plots
    Fig.3 Diagram of sampling point on plants
    Fig.4 Experiment plants in the concentration screening
    Fig.5 Droplet deposition distribution of Acanthopanax trifoliatus leaves
    Fig.6 Yield and A1 of each treatment in the orthogonal experiment
    Fig.7 Chl and A2 of each treatment in the orthogonal experiment
    Table 1 Manifestations of crop burning and non-burning seedlings
    Table 2 Orthogonal experiment scheme
    Table 3 Range analysis table of droplet density and droplet deposition
    Table 4 ANOVA for droplet density and droplet deposition
    Table 5 Range analysis table of yield and the content of chlorophyll
    Table 6 ANOVA for yield and the content of chlorophyll
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张建桃,吴逢秋,黄路生,刘广彬,文晟,兰玉彬. Optimizing parameters for spraying foliar fertilizer on Acanthopanax trifoliatus with unmanned aerial vehicle[J]. Jorunal of Huazhong Agricultural University,2025,44(2):284-292.

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History
  • Received:January 02,2024
  • Online: April 02,2025
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