Abstract
Returns to land, management, and risk were compared where glyphosate and four graminicides (quizalofop-P, fluazifop-P, sethoxydim, and clethodim) were used for johnsongrass control in glyphosate-tolerant soybean. In 1994 and 1995, returns to land, management, and risk for glyphosate-tolerant soybean were highest using glyphosate and lowest using sethoxydim. Break-even analysis showed that yields needed for equivalent returns with any nontransgenic soybean cultivar treated with any of the graminicides could range from 67 kg/ha less to 202 kg/ha more than the yields achieved with glyphosate. Based on this methodology, farmers would increase their return to land, management, and risk by planting glyphosate-tolerant soybean if expected yield from a standard cultivar treated with a standard herbicide program were less than the break-even yield.
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Claims 4
Claim · model-written summary
Glyphosate gave the highest returns in glyphosate-tolerant soybean.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- glyphosatee0
- Interactor
- johnsongrass
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Sorghum halepensee1weed - Outcome
- returns to land, management, and riske0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“returns to land, management, and risk for glyphosate-tolerant soybean were highest using glyphosate and lowest using sethoxydim”
e1“johnsongrass control in glyphosate-tolerant soybean”
t0“Soybean (Glycine max)”
Claim · model-written summary
Sethoxydim gave the lowest returns in glyphosate-tolerant soybean.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- sethoxydime0
- Interactor
- johnsongrassSorghum halepensee1weed
- Outcome
- returns to land, management, and riske0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“returns to land, management, and risk for glyphosate-tolerant soybean were highest using glyphosate and lowest using sethoxydim”
e1“johnsongrass control in glyphosate-tolerant soybean”
t0“Soybean (Glycine max)”
Claim · model-written summary
Break-even yields for nontransgenic cultivars with graminicides ranged from 67 kg/ha less to 202 kg/ha more than with glyphosate.
- Taxon
- SoybeanGlycine maxt0
- Interactor
- johnsongrassSorghum halepensee1weed
- Outcome
- yields needed for equivalent returnse0
- Value
- 67 kg/ha less to 202 kg/ha moree0
- Comparator
- glyphosatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yields needed for equivalent returns with any nontransgenic soybean cultivar treated with any of the graminicides could range from 67 kg/ha less to 202 kg/ha more than the yields achieved with glyphosate”
e1“johnsongrass control in glyphosate-tolerant soybean”
t0“Soybean (Glycine max)”
Claim · model-written summary
The authors recommend glyphosate-tolerant soybean when standard-cultivar expected yield is below break-even yield.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- planting glyphosate-tolerant soybeane0
- Qualifier
- expected yield from a standard cultivar treated with a standard herbicide program were less than the break-even yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmers would increase their return to land, management, and risk by planting glyphosate-tolerant soybean if expected yield from a standard cultivar treated with a standard herbicide program were less than the break-even yield”
t0“Soybean (Glycine max)”
The same questions in other papers
Sethoxydim · Sorghum halepense · Glycine max (soybean)Positive and negative results
5 in the opposite direction
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15 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
13 papers more in this group
See all 17 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.