Abstract
There has been a rapid increase of soybean [ Glycine max (L.) Merr.] production in cropping systems in Wisconsin. The objective of this research was to determine the influence of five management systems on agronomic traits for three soybean cultivars grown at two different planting dates. An older cultivar (Hardin) and two newer cultivars (DeKalb CX232 and Spansoy 250) were grown in five management systems between 1997 and 2000. Four management systems were located on a silt loam soil and consisted of conventional and no‐tillage systems with and without irrigation. The fifth management system was located on a sandy loam soil that was irrigated. A planting date × cultivar interaction was observed on the silt loam soil where CX232 yielded 7% greater for the early planting date (4.37 Mg ha −1 ) than for the late planting date, but no planting date effect was observed for Hardin and Spansoy 250. Over all cultivars, yield was 4% greater for early planting on the silt loam soil. Grain yield and other agronomic traits were not influenced by cultivar and planting date on the sandy loam soil. Tillage and irrigation did not affect grain yield or most of the other agronomic traits. Regression of cultivar means on management system indicated an equal stability for yield among the cultivars tested with Hardin tending to be the most stable. It was concluded that soybean cultivar decisions in the Upper Midwest should be based on selecting the highest yielding cultivars adapted to a particular geographic region and location regardless of management system.
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 9
Claim · model-written summary
Cultivar CX232 yielded 7% more with early than late planting on silt loam soil
- Taxon
- Glycine max
Glycine maxe0 - Material
- CX232e1
- Treatment
- early planting datee1
- Outcome
- yielde1
- Direction
- greatere1
- Value
- 7%e1
- Comparator
- late planting datee1
- Setting
- silt loam soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e1“A planting date × cultivar interaction was observed on the silt loam soil where CX232 yielded 7% greater for the early planting date (4.37 Mg ha −1 ) than for the late planting date”
Claim · model-written summary
Planting date had no effect on yield of cultivar Hardin
- Taxon
- Glycine maxGlycine maxe0
- Material
- Hardine2
- Treatment
- planting datee2
- Outcome
- planting date effecte2
- Direction
- no_changeinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e2“no planting date effect was observed for Hardin and Spansoy 250”
Claim · model-written summary
Planting date had no effect on yield of cultivar Spansoy 250
- Taxon
- Glycine maxGlycine maxe0
- Material
- Spansoy 250e2
- Treatment
- planting datee2
- Outcome
- planting date effecte2
- Direction
- no_changeinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e2“no planting date effect was observed for Hardin and Spansoy 250”
Claim · model-written summary
Across cultivars, early planting gave 4% higher yield than late planting on silt loam soil
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- early plantinge4
- Outcome
- yielde4
- Direction
- greatere4
- Value
- 4%e4
- Setting
- silt loam soile4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e4“Over all cultivars, yield was 4% greater for early planting on the silt loam soil”
Claim · model-written summary
Cultivar and planting date did not influence grain yield of soybean on sandy loam soil
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- cultivar and planting datee5
- Outcome
- Grain yielde5
- Direction
- not influencede5
- Setting
- sandy loam soile5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e5“Grain yield and other agronomic traits were not influenced by cultivar and planting date on the sandy loam soil”
Claim · model-written summary
Tillage and irrigation did not affect grain yield of soybean
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- Tillage and irrigatione6
- Outcome
- grain yielde6
- Direction
- did not affecte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e6“Tillage and irrigation did not affect grain yield or most of the other agronomic traits”
Claim · model-written summary
Soybean cultivars tested had equal yield stability across management systems
- Taxon
- Glycine maxGlycine maxe0
- Material
- cultivars testede7
- Outcome
- stability for yielde7
- Qualifier
- equal stabilitye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e7“Regression of cultivar means on management system indicated an equal stability for yield among the cultivars tested with Hardin tending to be the most stable”
Claim · model-written summary
Cultivar Hardin tended to be the most yield-stable cultivar across management systems
- Taxon
- Glycine maxGlycine maxe0
- Material
- Hardine7
- Outcome
- stability for yielde7
- Qualifier
- tending to be the most stablee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean [ Glycine max (L.) Merr.] production”
e7“Regression of cultivar means on management system indicated an equal stability for yield among the cultivars tested with Hardin tending to be the most stable”
Claim · model-written summary
Soybean cultivar decisions in the Upper Midwest should be based on selecting the highest yielding cultivars adapted to a region regardless of management system
- Taxon
- soybeanGlycine maxe7
- Outcome
- selecting the highest yielding cultivars adapted to a particular geographic regione7
- Qualifier
- regardless of management systeme7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“soybean cultivar decisions in the Upper Midwest should be based on selecting the highest yielding cultivars adapted to a particular geographic region and location regardless of management system”
The same questions in other papers
sowing time · yield · Glycine max (soybean)Positive and negative results
114 papers in the same direction as this paper · 89 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- negative
203 papers more in this group
See all 207 papers →irrigation · yield · Glycine max (soybean)Positive and negative results
78 papers in the same direction as this paper · 264 in the opposite direction
- positive
- positive
- positive
339 papers more in this group
See all 343 papers →tillage · yield · Glycine max (soybean)Positive and negative results
125 papers in the same direction as this paper · 264 in the opposite direction
- positive
- positive
- positive
386 papers more in this group
See all 390 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.