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.
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Claims 5
Claim · model-written summary
Knapsack sprayer gave the lowest weed count and weed dry weight among the sprayers compared in soybean.
- Taxon
- soybeans
Glycine 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.

Verbatim
e0“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”
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”
e2“Boom and drone sprayers followed in effectiveness”
Claim · model-written summary
Knapsack sprayer gave the lowest weed control efficiency and weed index among the sprayers compared in soybean.
- Taxon
- soybeans
Glycine 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.

Verbatim
e0“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”
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”
e2“Boom and drone sprayers followed in effectiveness”
Claim · model-written summary
Herbicide application was faster with the drone sprayer than with hand weeding, boom sprayer and knapsack sprayer in soybean.
- Taxon
- soybeans
Glycine 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.

Verbatim
e0“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”
e3“Herbicide application was faster with the drone sprayer than with hand weeding, cultural practices, boom sprayer, and knapsack sprayer”
Claim · model-written summary
Drone sprayer used less water and labour than knapsack and boom sprayers in soybean weed control.
- Taxon
- soybeans
Glycine 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.

Verbatim
e0“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”
e4“Compared to knapsack and boom sprayers, the drone sprayer used less water and labour”
Claim · model-written summary
Drone sprayers gave the most efficient overall work efficiency, followed by boom and knapsack sprayers, in soybean.
- Taxon
- soybeans
Glycine 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.

Verbatim
e0“The primary objective was to evaluate the comparative efficacy of various sprayers in controlling weeds in soybeans”
e5“Drone sprayers work most efficiently, followed by boom and knapsack sprayers”
e6“The sprayers were compared for time, water, labor, herbicide, and overall work efficiency”
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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.