Abstract
A reduction in soybean ( Glycine max (L.) Merr.) yield of 25% (1968) to 30% (1969) resulted from one smooth pigweed ( Amaranthus hybridus L.) per ft in 30-inch rows. A giant foxtail ( Setaria faberii Herrm.) infestation of one plant per ft in 30-inch rows reduced yield 13% in 1969. Harvesting before weeds were desiccated resulted in significant threshing and separating losses as speed was increased from 1 to 2 and 3 mph. Stubble, lodging, and stalk losses were more than double in the pigweed and foxtail plots when compared to the weed-free plots after weeds were desiccated by frost.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Smooth pigweed reduced soybean yield 25% in 1968 and 30% in 1969.
- Taxon
- soybean
Glycine maxe0 - Treatment
- one smooth pigweed ( Amaranthus hybridus L.) per ft in 30-inch rowse0
- Interactor
- smooth pigweed
Amaranthus hybriduse0weed - Outcome
- soybean ( Glycine max (L.) Merr.) yielde0
- Direction
- reductione0
- Value
- 25% (1968) to 30% (1969)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A reduction in soybean ( Glycine max (L.) Merr.) yield of 25% (1968) to 30% (1969) resulted from one smooth pigweed ( Amaranthus hybridus L.) per ft in 30-inch rows”
Claim · model-written summary
Giant foxtail reduced soybean yield 13% in 1969.
- Taxon
- soybeanGlycine maxe1
- Treatment
- giant foxtail ( Setaria faberii Herrm.) infestation of one plant per ft in 30-inch rowse0
- Interactor
- giant foxtaile0weed
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 13%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A giant foxtail ( Setaria faberii Herrm.) infestation of one plant per ft in 30-inch rows reduced yield 13% in 1969”
e1“soybean ( Glycine max (L.) Merr.) yield”
Claim · model-written summary
Increasing harvest speed before weed desiccation significantly increased threshing and separating losses.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- speede0
- Interactor
- weedse0weed
- Outcome
- threshing and separating lossese0
- Direction
- increasede0
- Value
- 1 to 2 and 3 mphe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting before weeds were desiccated resulted in significant threshing and separating losses as speed was increased from 1 to 2 and 3 mph”
t0“Soybean”
Claim · model-written summary
Stubble, lodging, and stalk losses were more than double in weed plots after frost desiccation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- pigweed and foxtail plotse0
- Interactor
- pigweed and foxtaile0weed
- Outcome
- Stubble, lodging, and stalk lossese0
- Direction
- more than doublee0
- Qualifier
- after weeds were desiccated by froste0
- Comparator
- weed-free plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stubble, lodging, and stalk losses were more than double in the pigweed and foxtail plots when compared to the weed-free plots after weeds were desiccated by frost”
t0“Soybean”
The same questions in other papers
Alopecurus pratensis · yield · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Amaranthus hybridus · yield · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- negative
Alopecurus pratensis · growth · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- negative
infection · yield · Glycine max (soybean)Results differ
41 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
47 papers more in this group
See all 51 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.