Abstract
Abstract Termination of an existing failed corn stand before replanting is essential. Two studies were conducted in Stoneville and Verona, MS, from 2020 to 2021 to evaluate timing of corn or soybean replanting following different herbicide treatments applied to simulated failed stands of corn. Treatments included paraquat alone at 841 g ai ha −1 , paraquat at 841 g ha −1 + metribuzin at 211 g ai ha −1 , and clethodim at 51 g ai ha −1 + glyphosate at 1,121 g ae ha −1 applied at the V2 growth stage. Replant timings were 1 and 7 d after herbicide treatment (DAT). Pooled across replant timings, paraquat + metribuzin provided the greatest control 3 DAT compared with other treatments in both studies. At 14 and 21 DAT, clethodim + glyphosate controlled more corn than did paraquat + metribuzin and paraquat alone. Control of a simulated failed corn stand with paraquat alone never exceeded 50% at 3 to 21 DAT. Soybean yield in all plots receiving herbicide treatment targeting simulated failed corn stands were similar and ≥2,150 kg ha −1 . When applied at the V2 corn growth stage, both clethodim + glyphosate and paraquat + metribuzin controlled a simulated failed stand of corn. This study demonstrated the importance of terminating failed stands of corn before replanting because of dramatic reductions in yield in the plots not treated with herbicide.
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Claims 6
Claim · model-written summary
Paraquat plus metribuzin gave the greatest control of simulated failed corn 3 DAT compared with other treatments.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- paraquat + metribuzine3
- Outcome
- controle3
- Direction
- greateste3
- Qualifier
- 3 DATe3
- Comparator
- other treatmentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to simulated failed stands of corn”
e3“Pooled across replant timings, paraquat + metribuzin provided the greatest control 3 DAT compared with other treatments in both studies”
Claim · model-written summary
Clethodim plus glyphosate controlled more corn than paraquat plus metribuzin or paraquat alone at 14 and 21 DAT.
- Taxon
- cornZea mays subsp. mayse4
- Treatment
- clethodim + glyphosatee4
- Outcome
- corne4
- Direction
- controlled moree4
- Qualifier
- At 14 and 21 DATe4
- Comparator
- paraquat + metribuzin and paraquat alonee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“At 14 and 21 DAT, clethodim + glyphosate controlled more corn than did paraquat + metribuzin and paraquat alone”
Claim · model-written summary
Paraquat alone never exceeded 50% control of a simulated failed corn stand at 3 to 21 DAT.
- Taxon
- cornZea mays subsp. mayse5
- Treatment
- paraquat alonee5
- Outcome
- Control of a simulated failed corn stande5
- Direction
- never exceedede5
- Value
- 50%e5
- Qualifier
- at 3 to 21 DATe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Control of a simulated failed corn stand with paraquat alone never exceeded 50% at 3 to 21 DAT”
Claim · model-written summary
Soybean yield was similar and at least 2,150 kg ha-1 in all plots receiving herbicide treatment on simulated failed corn stands.
- Taxon
- soybean
Glycine maxe2 - Treatment
- herbicide treatment targeting simulated failed corn standse2
- Outcome
- Soybean yielde2
- Direction
- similare2
- Value
- ≥2,150 kg ha −1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Soybean yield in all plots receiving herbicide treatment targeting simulated failed corn stands were similar and ≥2,150 kg ha −1”
Claim · model-written summary
Terminating failed corn stands before replanting prevented dramatic yield reductions compared with plots not treated with herbicide.
- Taxon
- cornZea mays subsp. mayse7
- Treatment
- terminating failed stands of corne7
- Outcome
- yielde7
- Direction
- reductionse7
- Comparator
- plots not treated with herbicidee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“terminating failed stands of corn before replanting because of dramatic reductions in yield in the plots not treated with herbicide”
Claim · model-written summary
Clethodim plus glyphosate and paraquat plus metribuzin applied at the V2 corn stage controlled a simulated failed corn stand.
- Taxon
- cornZea mays subsp. mayse6
- Organ / stage
- V2 corn growth stagee6
- Treatment
- clethodim + glyphosate and paraquat + metribuzine6
- Outcome
- simulated failed stand of corne6
- Direction
- controllede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“When applied at the V2 corn growth stage, both clethodim + glyphosate and paraquat + metribuzin controlled a simulated failed stand of corn”
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