Abstract
Field studies were conducted over a 2-year period at Urbana, Illinois, to evaluate soybean ( Glycine max (L.) Merr., var. Harosoy 63 and Wayne) and weed yields as influenced by row spacing, variety, weed control methods, and 2,3,5-triiodobenzoic acid (hereinafter referred to as TIBA). Soybean yield increased and weed yield decreased as row spacing was decreased. Compared to the yield from 40-inch rows, soybean yield increase was 10, 18, and 20% for 30, 20, and 10-inch rows, respectively. Both cultivation and applications of a,a,a -trifluoro-2,6-dinitro- N,N -dipropyl- p -toluidine (trifluralin) controlled annual grass weeds at all row spacings. Cultivation controlled broadleaf weeds at all row spacings. Some broadleaf weeds, unaffected by trifluralin, made sufficient growth to impair soybean yields in wide rows but not in narrow rows.
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Claims 9
Claim · model-written summary
Soybean yield increased as row spacing decreased.
- Taxon
- Soybean
Glycine maxe0 - Treatment
- row spacinge0
- Outcome
- Soybean yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean yield increased and weed yield decreased as row spacing was decreased.”
Claim · model-written summary
Weed yield decreased as row spacing decreased.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- row spacinge0
- Interactor
- weede0weed
- Outcome
- weed yielde0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean yield increased and weed yield decreased as row spacing was decreased.”
Claim · model-written summary
Soybean yield in 30-inch rows was 10% higher than 40-inch rows.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 30e0
- Outcome
- soybean yielde0
- Direction
- increasee0
- Value
- 10e0
- Comparator
- 40-inch rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the yield from 40-inch rows, soybean yield increase was 10, 18, and 20% for 30, 20, and 10-inch rows, respectively.”
Claim · model-written summary
Soybean yield in 20-inch rows was 18% higher than 40-inch rows.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 20e0
- Outcome
- soybean yielde0
- Direction
- increasee0
- Value
- 18e0
- Comparator
- 40-inch rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the yield from 40-inch rows, soybean yield increase was 10, 18, and 20% for 30, 20, and 10-inch rows, respectively.”
Claim · model-written summary
Soybean yield in 10-inch rows was 20% higher than 40-inch rows.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 10-inch rowse0
- Outcome
- soybean yielde0
- Direction
- increasee0
- Value
- 20%e0
- Comparator
- 40-inch rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the yield from 40-inch rows, soybean yield increase was 10, 18, and 20% for 30, 20, and 10-inch rows, respectively.”
Claim · model-written summary
Cultivation controlled annual grass weeds at every row spacing.
- Treatment
- cultivatione0
- Interactor
- annual grass weedse0weed
- Outcome
- controlled annual grass weedse0
- Direction
- controllede0
Not reportedTaxonComparator
Verbatim
e0“Both cultivation and applications of a,a,a -trifluoro-2,6-dinitro- N,N -dipropyl- p -toluidine (trifluralin) controlled annual grass weeds at all row spacings.”
Claim · model-written summary
Trifluralin controlled annual grass weeds at every row spacing.
- Treatment
- trifluraline0
- Interactor
- annual grass weedse0weed
- Outcome
- controlled annual grass weedse0
- Direction
- controllede0
Not reportedTaxonComparator
Verbatim
e0“Both cultivation and applications of a,a,a -trifluoro-2,6-dinitro- N,N -dipropyl- p -toluidine (trifluralin) controlled annual grass weeds at all row spacings.”
Claim · model-written summary
Cultivation controlled broadleaf weeds at all row spacings.
- Treatment
- Cultivatione0
- Interactor
- broadleaf weedse0weed
- Outcome
- controlled broadleaf weedse0
- Direction
- controllede0
Not reportedTaxonComparator
Verbatim
e0“Cultivation controlled broadleaf weeds at all row spacings.”
Claim · model-written summary
Broadleaf weeds unaffected by trifluralin impaired soybean yields in wide but not narrow rows.
- Taxon
- soybeanGlycine maxe0
- Interactor
- broadleaf weedse0weed
- Outcome
- soybean yieldse0
- Setting
- wide rowse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some broadleaf weeds, unaffected by trifluralin, made sufficient growth to impair soybean yields in wide rows but not in narrow rows.”
The same questions in other papers
trifluralin · weed · Glycine max (soybean)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 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.