Abstract
Field experiments were conducted at three locations in Mississippi in 1995 and 1996 to evaluate labeled and alternative herbicides and herbicide combinations for weed desiccation prior to soybean harvest. Weeds evaluated included pitted morningglory, hemp sesbania, spotted spurge, common cocklebur, and sicklepod. Soybean yield and harvestable soybean losses were not affected by preharvest herbicide treatments, spray volume, or surfactant concentration. Soybean moisture was most consistently reduced by glufosinate compared to the untreated and other herbicides and herbicide combinations evaluated. Most desiccation treatments at Stoneville and Brooksville resulted in foreign material similar to the weed-free check. Glufosinate at 0.84, 1.1, and 1.4 kg ai/ha desiccated all weeds evaluated 90% or more with no differences among rates. The addition of 3.4 or 6.7 kg ai/ha sodium chlorate to 0.28 kg ai/ha paraquat, 1.1 and 2.2 kg ai/ha glyphosate, or 0.28 and 0.56 kg ai/ha oxyfluorfen increased desiccation of most weeds evaluated, with no difference between sodium chlorate rates. In some instances, reducing application volume from 281 to 94 L/ha improved pitted morningglory desiccation when 0.28 g/ha paraquat was applied alone. There were no differences between 0.25 and 0.50% (v/v) surfactant for most parameters evaluated.
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Claims 7
Claim · model-written summary
Preharvest treatments, spray volume, and surfactant concentration did not affect soybean yield or harvestable losses.
- Taxon
- Soybean
Glycine maxe0 - Treatment
- preharvest herbicide treatments, spray volume, or surfactant concentratione0
- Outcome
- Soybean yield and harvestable soybean lossese0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean yield and harvestable soybean losses were not affected by preharvest herbicide treatments, spray volume, or surfactant concentration.”
Claim · model-written summary
Glufosinate most consistently reduced soybean moisture.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- glufosinatee0
- Outcome
- Soybean moisturee0
- Direction
- reducede0
- Comparator
- the untreated and other herbicides and herbicide combinationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean moisture was most consistently reduced by glufosinate compared to the untreated and other herbicides and herbicide combinations evaluated.”
Claim · model-written summary
Most desiccation treatments at Stoneville and Brooksville produced foreign material similar to the weed-free check.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Most desiccation treatmentse0
- Outcome
- foreign materiale0
- Direction
- similare0
- Comparator
- weed-free checke0
- Setting
- Stoneville and Brooksvillee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most desiccation treatments at Stoneville and Brooksville resulted in foreign material similar to the weed-free check.”
t0“Soybean”
Claim · model-written summary
Glufosinate at three tested rates desiccated all evaluated weeds by at least 90%, without rate differences.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Glufosinate at 0.84, 1.1, and 1.4 kg ai/hae0
- Outcome
- desiccated all weeds evaluatede0
- Direction
- desiccatede0
- Value
- 90% or moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glufosinate at 0.84, 1.1, and 1.4 kg ai/ha desiccated all weeds evaluated 90% or more with no differences among rates.”
t0“Soybean”
Claim · model-written summary
Adding sodium chlorate increased desiccation of most evaluated weeds, with no rate difference.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 3.4 or 6.7 kg ai/ha sodium chloratee0
- Outcome
- desiccation of most weeds evaluatede0
- Direction
- increasede0
- Comparator
- 0.28 kg ai/ha paraquat, 1.1 and 2.2 kg ai/ha glyphosate, or 0.28 and 0.56 kg ai/ha oxyfluorfene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of 3.4 or 6.7 kg ai/ha sodium chlorate to 0.28 kg ai/ha paraquat, 1.1 and 2.2 kg ai/ha glyphosate, or 0.28 and 0.56 kg ai/ha oxyfluorfen increased desiccation of most weeds evaluated, with no difference between sodium chlorate rates.”
t0“Soybean”
Claim · model-written summary
Lower application volume sometimes improved pitted morningglory desiccation with paraquat.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- reducing application volume from 281 to 94 L/hae0
- Interactor
- pitted morningglorye0weed
- Outcome
- pitted morningglory desiccatione0
- Direction
- improvede0
- Comparator
- 281e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In some instances, reducing application volume from 281 to 94 L/ha improved pitted morningglory desiccation when 0.28 g/ha paraquat was applied alone.”
t0“Soybean”
Claim · model-written summary
The two surfactant concentrations did not differ for most evaluated parameters.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 0.25 and 0.50% (v/v) surfactante0
- Outcome
- most parameters evaluatede0
- Direction
- no differencese0
- Comparator
- 0.50% (v/v) surfactante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no differences between 0.25 and 0.50% (v/v) surfactant for most parameters evaluated.”
t0“Soybean”
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