Paper · 2023 · Environmental Research

Comparative studies of knapsack, boom, and drone sprayers for weed management in soybean (Glycine max L.)

Chaitanya Hiremath; Narendra Khatri; Megha P. Jagtap

5
claims
13
verbatim quotes
32
citations
2
research areas
✓
Open access · cc-by

Abstract

The study titled, "Comparative Evaluation of Knapsack, Boom, and Drone Sprayers for Weed Management in Soybean (Glycine max L.)" was carried out during the Kharif season 2021-22 at an experimental farm affiliated with the Department of Agronomy, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani. The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans and their work efficiency. The Randomized Block Design (RBD) included ten treatments of pre-emergence (PE) and post-emergence (POE) herbicides applied by knapsack, boom, and drone sprayers. Pendimethalin 30% EC @ 750 g a.i ha−1 was used for pre-emergence herbicide application, and Imazamox 35% EC + Imazethapyr 35% WG @ 70 g a.i ha−1 were used for post-emergence. These treatments were tested on soybean Monocot and Dicot weed count, weed dry weight, weed index, and weed control efficiency. The sprayers were compared for time, water, labor, herbicide, and overall work efficiency. A knapsack sprayer showed the best results for pre- and post-emergence herbicide application, with the lowest weed count, dry weight, control efficiency, and weed index. Boom and drone sprayers followed in effectiveness. Herbicide application was faster with the drone sprayer than with hand weeding, cultural practices, boom sprayer, and knapsack sprayer. Compared to knapsack and boom sprayers, the drone sprayer used less water and labour. Drone sprayers work most efficiently, followed by boom and knapsack sprayers. This study focuses on the prevalence of herbicides and their impact on non-target ecosystems. It aims to develop mitigation strategies by optimizing spraying efficiency and reducing herbicide usage during pre and post emergence. The dissemination of efficient weed management practices that reduce environmental impacts and increase the efficiency of soybean cultivation is consistent with Sustainable Development Goal 15: life on land.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Knapsack sprayer gave the lowest weed count and weed dry weight among the sprayers compared in soybean.

Taxon
soybeansGlycine maxe0
Treatment
knapsack sprayere1
Interactor
weedse0weed
Outcome
weed count, dry weighte1
Direction
loweste1
Comparator
Boom and drone sprayerse2

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”

✓ located verbatim in the source · abstract, characters 301–416 · show in text ↑
e1

“A knapsack sprayer showed the best results for pre- and post-emergence herbicide application, with the lowest weed count, dry weight, control efficiency, and weed index”

✓ located verbatim in the source · abstract, characters 1001–1169 · show in text ↑
e2

“Boom and drone sprayers followed in effectiveness”

✓ located verbatim in the source · abstract, characters 1171–1220 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Knapsack sprayer gave the lowest weed control efficiency and weed index among the sprayers compared in soybean.

Taxon
soybeansGlycine maxe0
Treatment
knapsack sprayere1
Interactor
weedse0weed
Outcome
control efficiency, and weed indexe1
Direction
loweste1
Comparator
Boom and drone sprayerse2

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”

✓ located verbatim in the source · abstract, characters 301–416 · show in text ↑
e1

“A knapsack sprayer showed the best results for pre- and post-emergence herbicide application, with the lowest weed count, dry weight, control efficiency, and weed index”

✓ located verbatim in the source · abstract, characters 1001–1169 · show in text ↑
e2

“Boom and drone sprayers followed in effectiveness”

✓ located verbatim in the source · abstract, characters 1171–1220 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Herbicide application was faster with the drone sprayer than with hand weeding, boom sprayer and knapsack sprayer in soybean.

Taxon
soybeansGlycine maxe0
Treatment
drone sprayere3
Outcome
Herbicide applicatione3
Direction
fastere3
Comparator
hand weeding, cultural practices, boom sprayer, and knapsack sprayere3

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”

✓ located verbatim in the source · abstract, characters 301–416 · show in text ↑
e3

“Herbicide application was faster with the drone sprayer than with hand weeding, cultural practices, boom sprayer, and knapsack sprayer”

✓ located verbatim in the source · abstract, characters 1222–1356 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Drone sprayer used less water and labour than knapsack and boom sprayers in soybean weed control.

Taxon
soybeansGlycine maxe0
Treatment
drone sprayere4
Outcome
water and laboure4
Direction
lesse4
Comparator
knapsack and boom sprayerse4

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”

✓ located verbatim in the source · abstract, characters 301–416 · show in text ↑
e4

“Compared to knapsack and boom sprayers, the drone sprayer used less water and labour”

✓ located verbatim in the source · abstract, characters 1358–1442 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Drone sprayers gave the most efficient overall work efficiency, followed by boom and knapsack sprayers, in soybean.

Taxon
soybeansGlycine maxe0
Treatment
Drone sprayerse5
Outcome
overall work efficiencye6
Direction
most efficientlye5
Comparator
boom and knapsack sprayerse5

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”

✓ located verbatim in the source · abstract, characters 301–416 · show in text ↑
e5

“Drone sprayers work most efficiently, followed by boom and knapsack sprayers”

✓ located verbatim in the source · abstract, characters 1444–1520 · show in text ↑
e6

“The sprayers were compared for time, water, labor, herbicide, and overall work efficiency”

✓ located verbatim in the source · abstract, characters 910–999 · show in text ↑

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

14 papers: 12 positive, 2 negative or no effect

11 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. no effect
  3. negative

10 papers more in this group

See all 14 papers →

application · molecular: metabolites · Glycine max (soybean)Positive and negative results

50 papers: 40 positive, 10 negative or no effect

39 papers in the same direction as this paper · 10 in the opposite direction

  1. negative
  2. negative
  3. no effect

46 papers more in this group

See all 50 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.