Abstract
ABSTRACT The productivity of the soybean crop (Glycine max) can be limited by several factors, including diseases. In the integrated management of diseases, one of the strategies used is chemical control. The aim of this experiment was to evaluate the influence of spray nozzle types on the chemical control of fungal diseases in soybean plants. The experimental design was randomised blocks, with six treatments and four replications. The treatments consisted of control (without fungicide application on soybean plants) and application of fungicides with different spray nozzles: hollow cone jet, double flat jet, extended range flat jet, wide angle flat jet and air induction flat jet. The sprayer used was the backpack pressurised by carbon dioxide CO2. The experiment was installed in the Campos Gerais region (Paraná, Brazil); during three cropping seasons. The evaluated variables were incidence and severity, spray quality (covered area, droplet density, and relative amplitude) and yield components. It was concluded that the chemical control of fungal diseases in soybean plants reduced the proliferation of pathogens and losses in crop yield. There were significant changes in spraying quality in all analysed variables. There were no differences among the spray nozzle types regarding the analysis of incidence, severity and soybean yield components.
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Claims 5
Claim · model-written summary
Chemical disease control reduced pathogen proliferation in soybean.
- Taxon
- soybean
Glycine maxe0 - Treatment
- chemical controle0
- Interactor
- pathogense0pathogen
- Outcome
- proliferation of pathogense0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chemical control of fungal diseases in soybean plants reduced the proliferation of pathogens and losses in crop yield.”
Claim · model-written summary
Chemical disease control reduced soybean yield losses.
- Taxon
- soybeanGlycine maxe0
- Treatment
- chemical controle0
- Interactor
- pathogense0pathogen
- Outcome
- losses in crop yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chemical control of fungal diseases in soybean plants reduced the proliferation of pathogens and losses in crop yield.”
Claim · model-written summary
Spray nozzle treatments significantly changed covered area, droplet density and relative amplitude.
- Taxon
- soybeanGlycine maxt0
- Treatment
- spray qualitye1
- Outcome
- spraying qualitye0
- Qualifier
- covered area, droplet density, and relative amplitudee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant changes in spraying quality in all analysed variables.”
e1“spray quality (covered area, droplet density, and relative amplitude)”
t0“soybean crops”
Claim · model-written summary
Nozzle types did not differ in disease incidence or severity.
- Taxon
- soybeanGlycine maxe0
- Treatment
- spray nozzle typese0
- Outcome
- incidence, severitye0
- Direction
- no differencese0
- Comparator
- among the spray nozzle typese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no differences among the spray nozzle types regarding the analysis of incidence, severity and soybean yield components.”
Claim · model-written summary
Nozzle types did not differ in soybean yield components.
- Taxon
- soybeanGlycine maxe0
- Treatment
- spray nozzle typese0
- Outcome
- soybean yield componentse0
- Direction
- no differencese0
- Comparator
- among the spray nozzle typese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no differences among the spray nozzle types regarding the analysis of incidence, severity and soybean yield components.”
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application · disease · Glycine max (soybean)Positive and negative results
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See all 404 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.