Abstract
Field experiments were conducted in 1989 and 1990 on silty clay and sandy loam soils to evaluate weed control and soybean yield with early-April preplant incorporation of selective herbicides in stale seedbed soybean followed by non-selective weed control measures at planting. Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PRE controlled sicklepod, pitted morningglory, and hemp sesbania to the same extent of that treatment applied PPI at planting. All stale seedbed treatments with POST applications and glyphosate, paraquat, or tillage at planting controlled pitted morningglory over 70%. However, imazaquin or metribuzin applied PPI early without a POST treatment controlled sicklepod and pitted morningglory poorly. Frequently, applying PPI herbicides at planting increased control compared with early PPI applications, but this was overcome by POST treatments. Early stale seedbed applications of metribuzin did not result in more than 60% control of hemp sesbania, whereas metribuzin applied PPI at planting controlled over 85%. However, metribuzin plus chlorimuron controlled hemp sesbania at least 74%, regardless of application timing or tillage method, whereas no imazaquin treatment achieved over 65% control. All stale seedbed herbicide treatments increased soybean yield compared with the untreated stale seedbed check. Selective herbicide treatments with either non-selective herbicide in a stale seedbed program resulted in equivalent yield to PPI at planting treatments most often, except with metribuzin.
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Claims 13
Claim · model-written summary
Early metribuzin followed by chlorimuron and glyphosate or paraquat controlled sicklepod as well as the at-planting program.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PREe0
- Interactor
- sicklepode0weed
- Outcome
- controlled sicklepode0
- Direction
- same extente0
- Comparator
- that treatment applied PPI at plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PRE controlled sicklepod, pitted morningglory, and hemp sesbania to the same extent of that treatment applied PPI at planting.”
t0“Soybean”
Claim · model-written summary
The early combination controlled pitted morningglory as well as the at-planting program.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PREe0
- Interactor
- pitted morningglorye0weed
- Outcome
- pitted morningglorye0
- Direction
- same extente0
- Comparator
- that treatment applied PPI at plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PRE controlled sicklepod, pitted morningglory, and hemp sesbania to the same extent of that treatment applied PPI at planting.”
t0“Soybean”
Claim · model-written summary
The early combination controlled hemp sesbania as well as the at-planting program.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PREe0
- Interactor
- hemp sesbaniae0weed
- Outcome
- hemp sesbaniae0
- Direction
- same extente0
- Comparator
- that treatment applied PPI at plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PRE controlled sicklepod, pitted morningglory, and hemp sesbania to the same extent of that treatment applied PPI at planting.”
t0“Soybean”
Claim · model-written summary
Stale seedbed programs with POST and glyphosate, paraquat or tillage controlled pitted morningglory over 70%.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- stale seedbed treatments with POST applications and glyphosate, paraquat, or tillage at plantinge0
- Interactor
- pitted morningglorye0weed
- Outcome
- controlled pitted morningglorye0
- Value
- over 70%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All stale seedbed treatments with POST applications and glyphosate, paraquat, or tillage at planting controlled pitted morningglory over 70%.”
t0“Soybean”
Claim · model-written summary
Early imazaquin or metribuzin without POST poorly controlled sicklepod.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- imazaquin or metribuzin applied PPI early without a POST treatmente0
- Interactor
- sicklepode0weed
- Outcome
- controlled sicklepode0
- Direction
- poorlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“imazaquin or metribuzin applied PPI early without a POST treatment controlled sicklepod and pitted morningglory poorly.”
t0“Soybean”
Claim · model-written summary
Early imazaquin or metribuzin without POST poorly controlled pitted morningglory.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- imazaquin or metribuzin applied PPI early without a POST treatmente0
- Interactor
- pitted morningglorye0weed
- Outcome
- pitted morningglorye0
- Direction
- poorlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“imazaquin or metribuzin applied PPI early without a POST treatment controlled sicklepod and pitted morningglory poorly.”
t0“Soybean”
Claim · model-written summary
Applying PPI herbicides at planting often improved weed control over early PPI, offset by POST treatment.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- applying PPI herbicides at plantinge0
- Outcome
- controle0
- Direction
- increasede0
- Qualifier
- overcome by POST treatmentse0
- Comparator
- early PPI applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Frequently, applying PPI herbicides at planting increased control compared with early PPI applications, but this was overcome by POST treatments.”
t0“Soybean”
Claim · model-written summary
Early metribuzin gave no more than 60% hemp sesbania control.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Early stale seedbed applications of metribuzine0
- Interactor
- hemp sesbaniae0weed
- Outcome
- control of hemp sesbaniae0
- Direction
- did not result in more thane0
- Value
- 60%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early stale seedbed applications of metribuzin did not result in more than 60% control of hemp sesbania”
t0“Soybean”
Claim · model-written summary
Metribuzin PPI at planting controlled hemp sesbania over 85%.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- metribuzin applied PPI at plantinge0
- Interactor
- hemp sesbaniae1weed
- Outcome
- controllede0
- Value
- over 85%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metribuzin applied PPI at planting controlled over 85%.”
e1“control of hemp sesbania”
t0“Early Season Herbicide Applications for Weed Control in Stale Seedbed Soybean (Glycine max)”
Claim · model-written summary
Metribuzin plus chlorimuron controlled hemp sesbania at least 74% regardless of timing or tillage.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- metribuzin plus chlorimurone0
- Interactor
- hemp sesbaniae0weed
- Outcome
- controlled hemp sesbaniae0
- Value
- at least 74%e0
- Qualifier
- regardless of application timing or tillage methode0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metribuzin plus chlorimuron controlled hemp sesbania at least 74%, regardless of application timing or tillage method”
t0“Soybean”
Claim · model-written summary
No imazaquin treatment exceeded 65% hemp sesbania control.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no imazaquin treatment achieved over 65% control.”
t0“Soybean”
Claim · model-written summary
All stale seedbed herbicide treatments increased soybean yield over untreated stale seedbed.
- Taxon
- soybeanGlycine maxe0
- Treatment
- stale seedbed herbicide treatmentse0
- Outcome
- soybean yielde0
- Direction
- increasede0
- Comparator
- untreated stale seedbed checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All stale seedbed herbicide treatments increased soybean yield compared with the untreated stale seedbed check.”
Claim · model-written summary
Selective herbicide with either nonselective herbicide usually matched at-planting PPI yield, except metribuzin.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Selective herbicide treatments with either non-selective herbicide in a stale seedbed programe0
- Outcome
- yielde0
- Direction
- equivalente0
- Qualifier
- except with metribuzine0
- Comparator
- PPI at planting treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selective herbicide treatments with either non-selective herbicide in a stale seedbed program resulted in equivalent yield to PPI at planting treatments most often, except with metribuzin.”
t0“Soybean”
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See all 123 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.