Abstract
Irrigated soybean ( Glycine max L. Merr.) grown using raised seedbeds often produces higher yields than crops grown on flat seedbeds. However, research confirming this is limited. Two soybean cultivars were grown at Stoneville, MS, in 10‐inch twin rows, spaced 40 inches between centers on raised seedbeds and flat seedbeds in 2009 and 2010. Seeding at 81,000, 121,500, 162,000, and 202,500 seeds/acre occurred in mid April. Raised beds were furrow irrigated while flat seedbeds were flooded. Raised beds had a minimum 2.9 bu/acre yield increase for all seeding rates except 202,500 seeds/acre which did not differ between bed type. They also produced ≥ 4.0 bu/acre yield increase for both cultivars in 2010 and 13.1 bu/acre for one cultivar in 2009. Raised beds produced more plants per acre in 2009 than 2010. Stands in 2010 were less than 2009 due to early drought. Pods per plant were greater in 2010 (69 to 76) than 2009 (49 to 58) but lower 100‐seed weights in 2010 (0.41 to 0.50 oz) versus 2009 (0.56 to 0.64 oz) resulted in less yield in 2010 (47.8 to 61.9 bu/acre) than 2009 (57.5 to 90.1 bu/acre).
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Claims 9
Claim · model-written summary
Raised beds increased soybean yield by at least 2.9 bu/acre except at 202,500 seeds/acre.
- Taxon
- soybean
Glycine maxe1 - Treatment
- Raised bedse0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 2.9 bu/acree0
- Qualifier
- all seeding rates except 202,500 seeds/acree0
- Comparator
- bed typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Raised beds had a minimum 2.9 bu/acre yield increase for all seeding rates except 202,500 seeds/acre which did not differ between bed type”
e1“soybean ( Glycine max L. Merr.) grown using raised seedbeds”
Claim · model-written summary
At 202,500 seeds/acre, soybean yield did not differ by bed type.
- Taxon
- soybeanGlycine maxe1
- Treatment
- raised seedbedse1
- Outcome
- yielde2
- Direction
- did not differe0
- Qualifier
- 202,500 seeds/acree0
- Comparator
- bed typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“202,500 seeds/acre which did not differ between bed type”
e1“soybean ( Glycine max L. Merr.) grown using raised seedbeds”
e2“Raised beds had a minimum 2.9 bu/acre yield increase for all seeding rates except 202,500 seeds/acre which did not differ between bed type”
Claim · model-written summary
Raised beds increased yield by at least 4.0 bu/acre for both cultivars in 2010.
- Taxon
- soybeanGlycine maxe1
- Treatment
- raised seedbedse1
- Outcome
- yielde0
- Direction
- increasee0
- Value
- ≥ 4.0 bu/acree0
- Qualifier
- both cultivars in 2010e0
- Comparator
- flat seedbedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“They also produced ≥ 4.0 bu/acre yield increase for both cultivars in 2010”
e1“soybean ( Glycine max L. Merr.) grown using raised seedbeds often produces higher yields than crops grown on flat seedbeds”
Claim · model-written summary
Raised beds increased yield by 13.1 bu/acre for one cultivar in 2009.
- Taxon
- soybeanGlycine maxe1
- Treatment
- raised seedbedse1
- Outcome
- yielde2
- Direction
- increasee2
- Value
- 13.1 bu/acree0
- Qualifier
- one cultivar in 2009e0
- Comparator
- flat seedbedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“13.1 bu/acre for one cultivar in 2009”
e1“soybean ( Glycine max L. Merr.) grown using raised seedbeds often produces higher yields than crops grown on flat seedbeds”
e2“yield increase for both cultivars in 2010 and 13.1 bu/acre”
Claim · model-written summary
Raised beds produced more plants per acre in 2009 than in 2010.
- Taxon
- soybeanGlycine maxe1
- Outcome
- plants per acree0
- Direction
- moree0
- Comparator
- 2010e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Raised beds produced more plants per acre in 2009 than 2010”
e1“soybean ( Glycine max L. Merr.)”
Claim · model-written summary
Soybean stands were lower in 2010 than 2009 due to early drought.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stands in 2010 were less than 2009 due to early drought”
e1“soybean ( Glycine max L. Merr.)”
Claim · model-written summary
Pods per plant were greater in 2010 than 2009.
- Taxon
- soybeanGlycine maxe1
- Outcome
- Pods per plante0
- Direction
- greatere0
- Value
- 69 to 76e0
- Qualifier
- 49 to 58e0
- Comparator
- 2009e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pods per plant were greater in 2010 (69 to 76) than 2009 (49 to 58)”
e1“soybean ( Glycine max L. Merr.)”
Claim · model-written summary
100-seed weights were lower in 2010 than 2009.
- Taxon
- soybeanGlycine maxe1
- Outcome
- 100‐seed weightse0
- Direction
- lowere0
- Value
- 0.41 to 0.50 oze0
- Qualifier
- 0.56 to 0.64 oze0
- Comparator
- 2009e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower 100‐seed weights in 2010 (0.41 to 0.50 oz) versus 2009 (0.56 to 0.64 oz)”
e1“soybean ( Glycine max L. Merr.)”
Claim · model-written summary
Soybean yield was lower in 2010 than 2009.
- Taxon
- soybeanGlycine maxe1
- Outcome
- yielde0
- Direction
- lesse0
- Value
- 47.8 to 61.9 bu/acree0
- Qualifier
- 57.5 to 90.1 bu/acree0
- Comparator
- 2009e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less yield in 2010 (47.8 to 61.9 bu/acre) than 2009 (57.5 to 90.1 bu/acre)”
e1“soybean ( Glycine max L. Merr.)”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative
- no effect
- no effect
- no effect
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.