Abstract
Field trials were performed in 1994 and 1995 on potatoes and broccoli in order to compare two different spraying techniques: air-assisted spraying and conventional spraying. In the field, a boom sprayer providing both air-assisted and conventional spraying was used. Air assistance was provided by creating a high velocity air curtain that spans the whole length of the boom. Nozzles were placed close and in front of the air exit and tilted such that the spray patterns from individual nozzles merged before droplets were fully entrained into the air curtain. A mix of water and fluorescent tracer was applied at application rates of 100 L/ha and 200 L/ha. Sampling was made at different heights within the plant foliage and on both sides of the leaves. The analysis was performed using image analysis to measure the area covered by droplets. Field results show that air-assisted spraying provides a better overall spray penetration andcoverage than conventional application. The applications at lower volume (100 L/ha) using air assistance and the applications at higher volume (200 L/ha) without air assistance yield comparable results. Results from field experiments compare well to results from spray chamber experiments for broccoli but not for potato. A plausible explanation for thisdifference is that greenhouse grown potato plants were quite different than field grown ones while greenhouse and field grown broccoli plants were very similar.
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Claims 7
Claim · model-written summary
Air-assisted spraying improved overall spray penetration over conventional spraying on potatoes and broccoli.
- Taxon
- potatoes and broccoli
Solanum tuberosum
Brassica oleracea var. italicae1 - Treatment
- air-assisted sprayinge0
- Outcome
- spray penetratione0
- Direction
- bettere0
- Comparator
- conventional applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field results show that air-assisted spraying provides a better overall spray penetration andcoverage than conventional application.”
e1“potatoes and broccoli”
Claim · model-written summary
Air-assisted spraying improved overall coverage over conventional spraying on potatoes and broccoli.
- Taxon
- potatoes and broccoliSolanum tuberosumBrassica oleracea var. italicae1
- Treatment
- air-assisted sprayinge0
- Outcome
- coveragee0
- Direction
- bettere0
- Comparator
- conventional applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field results show that air-assisted spraying provides a better overall spray penetration andcoverage than conventional application.”
e1“potatoes and broccoli”
Claim · model-written summary
Lower volume spraying with air assistance performed comparably to higher volume spraying without it.
- Taxon
- potatoes and broccoliSolanum tuberosumBrassica oleracea var. italicae1
- Treatment
- lower volume (100 L/ha) using air assistancee0
- Outcome
- comparable resultse0
- Direction
- comparablee0
- Comparator
- higher volume (200 L/ha) without air assistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The applications at lower volume (100 L/ha) using air assistance and the applications at higher volume (200 L/ha) without air assistance yield comparable results.”
e1“potatoes and broccoli”
Claim · model-written summary
Broccoli field and spray-chamber results agreed.
- Taxon
- broccoliBrassica oleracea var. italicae0
- Outcome
- Results from field experiments compare welle0
- Comparator
- spray chamber experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from field experiments compare well to results from spray chamber experiments for broccoli but not for potato.”
Claim · model-written summary
Potato field and spray-chamber results did not agree.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- but not for potatoe0
- Comparator
- spray chamber experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from field experiments compare well to results from spray chamber experiments for broccoli but not for potato.”
Claim · model-written summary
Differences between greenhouse and field grown potato plants may explain the disagreement.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- thisdifferencee0
- Qualifier
- greenhouse grown potato plants were quite different than field grown onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A plausible explanation for thisdifference is that greenhouse grown potato plants were quite different than field grown ones while greenhouse and field grown broccoli plants were very similar.”
Claim · model-written summary
Greenhouse and field grown broccoli plants were very similar.
- Taxon
- broccoliBrassica oleracea var. italicae0
- Outcome
- very similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“greenhouse and field grown broccoli plants were very similar.”
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See all 79 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.