Abstract
Japanese agriculture is facing a decrease in agricultural workers. Mechanization, both to save time and reduce physical input, is essential to solving this issue. Recent worldwide progress in Internet-of-things technology has enabled the application of remote-controlled and unmanned machinery in agriculture. This study was conducted in the Gojo-Yoshino mountainous region in Nara, Japan, which is famous for its persimmon cultivation. The performance of newly introduced smart agricultural machinery was studied in the field by simulating cultivation work. The results showed that the remote-control weeder, speed sprayer, and remote-control mini crawler carrier saved 90%, 75%, and 5% of weeding, spraying, and harvesting times, respectively, when compared with conventional methods. Such time savings led to an 8% decrease in the total working time spent on persimmon cultivation. In addition, using the speed sprayer showed improvement in the fruit’s quality. Results of the power assist suits did not show a time-saving effect but showed a reduction of physical burden. These results suggest that the mechanization of persimmon cultivation is efficient and labor-saving, and satisfies the need for farmers. However, the high investment costs remain an issue in extending mechanization to the region.
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Claims 7
Claim · model-written summary
Remote-control weeding saved 90% of weeding time versus conventional practice.
- Treatment
- remote-control weedere0
- Outcome
- weedinge0
- Direction
- savede0
- Value
- 90%e0
- Comparator
- conventional methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the remote-control weeder, speed sprayer, and remote-control mini crawler carrier saved 90%, 75%, and 5% of weeding, spraying, and harvesting times, respectively, when compared with conventional methods”
t0“Persimmon”
Claim · model-written summary
The speed sprayer saved 75% of spraying time versus conventional practice.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the remote-control weeder, speed sprayer, and remote-control mini crawler carrier saved 90%, 75%, and 5% of weeding, spraying, and harvesting times, respectively, when compared with conventional methods”
t0“Persimmon”
Claim · model-written summary
The remote-control crawler saved 5% of harvesting time versus conventional practice.
- Treatment
- remote-control mini crawler carriere0
- Outcome
- harvestinge0
- Direction
- savede0
- Value
- 5%e0
- Comparator
- conventional methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the remote-control weeder, speed sprayer, and remote-control mini crawler carrier saved 90%, 75%, and 5% of weeding, spraying, and harvesting times, respectively, when compared with conventional methods”
t0“Persimmon”
Claim · model-written summary
Machinery use decreased total persimmon cultivation working time by 8%.
- Treatment
- time savingse0
- Outcome
- total working time spent on persimmon cultivatione0
- Direction
- decreasee0
- Value
- 8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Such time savings led to an 8% decrease in the total working time spent on persimmon cultivation”
t0“Persimmon”
Claim · model-written summary
The speed sprayer improved persimmon fruit quality.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“using the speed sprayer showed improvement in the fruit’s quality”
t0“Persimmon”
Claim · model-written summary
Power assist suits did not save time.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Results of the power assist suits did not show a time-saving effect”
t0“Persimmon”
Claim · model-written summary
Power assist suits reduced physical burden.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“power assist suits did not show a time-saving effect but showed a reduction of physical burden”
t0“Persimmon”
The same questions in other papers
application · quality: general · DiospyrosPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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.