Paper · 2024 · Frontiers in Plant Science

Weed detection in soybean fields using improved YOLOv7 and evaluating herbicide reduction efficacy

Jinyang Li; Wei Zhang; Hong Zhou; et al.

8
claims
13
verbatim quotes
30
citations
3
research areas
✓
Open access · cc-by

Abstract

With the increasing environmental awareness and the demand for sustainable agriculture, herbicide reduction has become an important goal. Accurate and efficient weed detection in soybean fields is the key to test the effectiveness of herbicide application, but current technologies and methods still have some problems in terms of accuracy and efficiency, such as relying on manual detection and poor adaptability to some complex environments. Therefore, in this study, weeding experiments in soybean fields with reduced herbicide application, including four levels, were carried out, and an unmanned aerial vehicle (UAV) was utilized to obtain field images. We proposed a weed detection model—YOLOv7-FWeed—based on improved YOLOv7, adopted F-ReLU as the activation function of the convolution module, and added the MaxPool multihead self-attention (M-MHSA) module to enhance the recognition accuracy of weeds. We continuously monitored changes in soybean leaf area and dry matter weight after herbicide reduction as a reflection of soybean growth at optimal herbicide application levels. The results showed that the herbicide application level of electrostatic spraying + 10% reduction could be used for weeding in soybean fields, and YOLOv7-FWeed was higher than YOLOv7 and YOLOv7-enhanced in all the evaluation indexes. The precision of the model was 0.9496, the recall was 0.9125, the F 1 was 0.9307, and the mAP was 0.9662. The results of continuous monitoring of soybean leaf area and dry matter weight showed that herbicide reduction could effectively control weed growth and would not hinder soybean growth. This study can provide a more accurate, efficient, and intelligent solution for weed detection in soybean fields, thus promoting herbicide reduction and providing guidance for exploring efficient herbicide application techniques.

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Claims 8

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

YOLOv7-FWeed outperformed YOLOv7 and YOLOv7-enhanced in all evaluation indexes for weed detection in soybean fields.

Taxon
soybeanGlycine maxe1
Outcome
evaluation indexese2
Direction
highere2
Comparator
YOLOv7 and YOLOv7-enhancede2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“weeding experiments in soybean fields”

✓ located verbatim in the source · abstract, characters 470–507 · show in text ↑
e2

“YOLOv7-FWeed was higher than YOLOv7 and YOLOv7-enhanced in all the evaluation indexes”

✓ located verbatim in the source · abstract, characters 1236–1321 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

YOLOv7-FWeed precision was 0.9496 in soybean fields.

Taxon
soybeanGlycine maxe1
Outcome
precisione3
Value
0.9496e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“weeding experiments in soybean fields”

✓ located verbatim in the source · abstract, characters 470–507 · show in text ↑
e3

“The precision of the model was 0.9496, the recall was 0.9125, the F 1 was 0.9307, and the mAP was 0.9662”

✓ located verbatim in the source · abstract, characters 1323–1427 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

YOLOv7-FWeed recall was 0.9125 in soybean fields.

Taxon
soybeanGlycine maxe1
Outcome
recalle3
Value
0.9125e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“weeding experiments in soybean fields”

✓ located verbatim in the source · abstract, characters 470–507 · show in text ↑
e3

“The precision of the model was 0.9496, the recall was 0.9125, the F 1 was 0.9307, and the mAP was 0.9662”

✓ located verbatim in the source · abstract, characters 1323–1427 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

YOLOv7-FWeed F1 score was 0.9307 in soybean fields.

Taxon
soybeanGlycine maxe1
Outcome
F 1e3
Value
0.9307e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“weeding experiments in soybean fields”

✓ located verbatim in the source · abstract, characters 470–507 · show in text ↑
e3

“The precision of the model was 0.9496, the recall was 0.9125, the F 1 was 0.9307, and the mAP was 0.9662”

✓ located verbatim in the source · abstract, characters 1323–1427 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

YOLOv7-FWeed mAP was 0.9662 in soybean fields.

Taxon
soybeanGlycine maxe1
Outcome
mAPe3
Value
0.9662e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“weeding experiments in soybean fields”

✓ located verbatim in the source · abstract, characters 470–507 · show in text ↑
e3

“The precision of the model was 0.9496, the recall was 0.9125, the F 1 was 0.9307, and the mAP was 0.9662”

✓ located verbatim in the source · abstract, characters 1323–1427 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Electrostatic spraying with a 10% herbicide reduction could be used for weeding in soybean fields.

Taxon
soybeanGlycine maxe4
Treatment
electrostatic spraying + 10% reductione4
Outcome
herbicide application levele4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e4

“the herbicide application level of electrostatic spraying + 10% reduction could be used for weeding in soybean fields”

✓ located verbatim in the source · abstract, characters 1113–1230 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Herbicide reduction effectively controlled weed growth in soybean fields.

Taxon
soybeanGlycine maxe5
Treatment
herbicide reductione5
Interactor
weede5weed
Outcome
weed growthe5
Direction
effectively controle5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e5

“herbicide reduction could effectively control weed growth and would not hinder soybean growth”

✓ located verbatim in the source · abstract, characters 1521–1614 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Herbicide reduction did not hinder soybean growth.

Taxon
soybeanGlycine maxe5
Treatment
herbicide reductione5
Outcome
soybean growthe5
Direction
not hindere5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e5

“herbicide reduction could effectively control weed growth and would not hinder soybean growth”

✓ located verbatim in the source · abstract, characters 1521–1614 · show in text ↑

herbicide · growth · Glycine max (soybean)Positive and negative results

122 papers: 60 positive, 62 negative or no effect

61 papers in the same direction as this paper · 60 in the opposite direction

  1. positive
  2. positive
  3. positive

118 papers more in this group

See all 122 papers →

herbicide · weed · Glycine max (soybean)Positive and negative results

297 papers: 258 positive, 39 negative or no effect

257 papers in the same direction as this paper · 26 in the opposite direction · 13 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

293 papers more in this group

See all 297 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.