Abstract
Most Jeju citrus orchards use a dense planting method in which trees are planted densely to pursue high productivity and yield. However, since this method is difficult to mechanize and automate pest control, the dependence on manual work increases. Fruit crops require frequent pesticide spraying due to the high incidence of pests, but this intensive cultivation method adds to the inconvenience of agricultural work and increases worker exposure during pesticide spraying. It also reduces the light absorption area and reduces crop and fruit quality. In this study, various experiments were conducted by applying a small unmanned high-speed spreader along with fruit tree pruning in a densely planted orchard environment. The pesticide spraying amount and spraying time were compared with manual control to evaluate the pesticide spraying effect and efficiency at the farm level. In the existing control group, the pesticide attachment rate was the highest when using a small unmanned speed spreader on a 1.5m wide road built in a 2.7m x 2.7m dense orchard, and the external attachment rate was 97.1%, the internal adhesion rate was the highest at 93.5%. The pesticide spraying time of the small unmanned high-speed spreader was 13 seconds per tree and the amount of pesticide was 6 L per tree, whereas the conventional manual control spraying time was 21 seconds per tree and the amount of pesticide was 7.6 L per tree. Therefore, when using an unmanned high-speed spreader by pruning a 1.5m path in a dense orchard, the time for spraying chemicals is reduced by 38.09% and the amount of insecticide sprayed by 21.05%, which is an effective insecticide spraying method.
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Claims 7
Claim · model-written summary
The unmanned sprayer on a 1.5m orchard path achieved 97.1% external attachment rate.
- Treatment
- small unmanned speed spreadere0
- Outcome
- external attachment ratee0
- Direction
- higheste0
- Value
- 97.1%e0
- Setting
- 2.7m x 2.7m dense orcharde0
CitrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“In the existing control group, the pesticide attachment rate was the highest when using a small unmanned speed spreader on a 1.5m wide road built in a 2.7m x 2.7m dense orchard, and the external attachment rate was 97.1%, the internal adhesion rate was the highest at 93.5%.”
Claim · model-written summary
The unmanned sprayer on a 1.5m orchard path achieved 93.5% internal adhesion rate.
- Treatment
- small unmanned speed spreadere0
- Outcome
- internal adhesion ratee0
- Direction
- higheste0
- Value
- 93.5%e0
- Setting
- 2.7m x 2.7m dense orcharde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“In the existing control group, the pesticide attachment rate was the highest when using a small unmanned speed spreader on a 1.5m wide road built in a 2.7m x 2.7m dense orchard, and the external attachment rate was 97.1%, the internal adhesion rate was the highest at 93.5%.”
Claim · model-written summary
The unmanned sprayer used 13 seconds per tree for pesticide spraying time, compared with 21 seconds per tree under manual control.
- Treatment
- small unmanned high-speed spreadere0
- Outcome
- pesticide spraying timee0
- Direction
- lowerinferrede0
- Value
- 13 seconds per treee0
- Qualifier
- 21 seconds per treee0
- Comparator
- conventional manual control spraying timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“The pesticide spraying time of the small unmanned high-speed spreader was 13 seconds per tree and the amount of pesticide was 6 L per tree, whereas the conventional manual control spraying time was 21 seconds per tree and the amount of pesticide was 7.6 L per tree.”
Claim · model-written summary
The unmanned sprayer used 6 L per tree for amount of pesticide, compared with 7.6 L per tree under manual control.
- Treatment
- small unmanned high-speed spreadere0
- Outcome
- amount of pesticidee0
- Direction
- lowerinferrede0
- Value
- 6 L per treee0
- Qualifier
- 7.6 L per treee0
- Comparator
- conventional manual controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“The pesticide spraying time of the small unmanned high-speed spreader was 13 seconds per tree and the amount of pesticide was 6 L per tree, whereas the conventional manual control spraying time was 21 seconds per tree and the amount of pesticide was 7.6 L per tree.”
Claim · model-written summary
Pruning a 1.5m path and using the unmanned sprayer reduced time for spraying chemicals by 38.09%.
- Treatment
- unmanned high-speed spreader by pruning a 1.5m pathe0
- Outcome
- time for spraying chemicalse0
- Direction
- reducede0
- Value
- 38.09%e0
- Comparator
- manual controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“Therefore, when using an unmanned high-speed spreader by pruning a 1.5m path in a dense orchard, the time for spraying chemicals is reduced by 38.09% and the amount of insecticide sprayed by 21.05%, which is an effective insecticide spraying method.”
e1“compared with manual control”
Claim · model-written summary
Pruning a 1.5m path and using the unmanned sprayer reduced amount of insecticide sprayed by 21.05%.
- Treatment
- unmanned high-speed spreader by pruning a 1.5m pathe0
- Outcome
- amount of insecticide sprayede0
- Direction
- reducede0
- Value
- 21.05%e0
- Comparator
- manual controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“Therefore, when using an unmanned high-speed spreader by pruning a 1.5m path in a dense orchard, the time for spraying chemicals is reduced by 38.09% and the amount of insecticide sprayed by 21.05%, which is an effective insecticide spraying method.”
e1“compared with manual control”
Claim · model-written summary
The authors judged the unmanned sprayer with a pruned path to be an effective spraying method.
- Treatment
- unmanned high-speed spreader by pruning a 1.5m pathe0
- Outcome
- effective insecticide spraying methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Jeju Citrus Orchards”
e0“Therefore, when using an unmanned high-speed spreader by pruning a 1.5m path in a dense orchard, the time for spraying chemicals is reduced by 38.09% and the amount of insecticide sprayed by 21.05%, which is an effective insecticide spraying method.”
The same questions in other papers
pruning · molecular: metabolites · CitrusPositive and negative results
5 in the opposite direction
- negative
- negative
- no effect
2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.