Abstract
Soybean [ Glycine max (L.) Merr.] yield response to tillage and crop rotation has varied among studies. Information regarding the effects of crop rotation and tillage on protein and oil concentrations in soybean grain is limited. A 3‐yr field study was conducted near Arlington, WI using conventional tillage and no‐tillage systems in seven soybean and corn ( Zea mays L.) rotations. The objective was to determine the effect of tillage system and crop rotation on the yield, protein concentration, and oil concentration of soybean grain. The tillage × rotation interaction was significant ( P ≤ 0.05) for grain yield. In the no‐tillage system, yields dropped 42% from 4.00 Mg ha −1 in first‐year soybean following 5 yr of consecutive corn to 2.33 Mg ha −1 in continuous soybean. In the conventional tillage system, yields dropped 35% from 3.01 Mg ha −1 in first‐year soybean following 5 yr of consecutive corn to 2.04 Mg ha −1 in continuous soybean. The tillage × rotation interaction was significant ( P ≤ 0.05) for protein concentration. In the conventional tillage system, protein concentration decreased from 357 mg kg −1 in first‐year soybean following five consecutive years of corn to 351 mg kg −1 in fifth‐year soybean following five consecutive years of corn. No clear trend was observed for protein concentration in the no‐tillage system. Oil concentration increased as consecutive years of soybean production increased in both tillage systems at a similar rate.
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Claims 7
Claim · model-written summary
Tillage and rotation interacted significantly for soybean grain yield.
Not reportedTaxonDirection
Verbatim
e0“The tillage × rotation interaction was significant ( P ≤ 0.05) for grain yield.”
Claim · model-written summary
Under no tillage, yield fell 42% from 4.00 to 2.33 Mg ha −1 between first-year soybean after corn and continuous soybean.
- Taxon
- soybean
Glycine maxe0 - Treatment
- continuous soybeane0
- Outcome
- yieldse0
- Direction
- droppede0
- Value
- 42%e0
- Qualifier
- no‐tillage systeme0
- Comparator
- first‐year soybean following 5 yr of consecutive corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the no‐tillage system, yields dropped 42% from 4.00 Mg ha −1 in first‐year soybean following 5 yr of consecutive corn to 2.33 Mg ha −1 in continuous soybean.”
Claim · model-written summary
Under conventional tillage, yield fell 35% from 3.01 to 2.04 Mg ha −1 between first-year soybean after corn and continuous soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- continuous soybeane0
- Outcome
- yieldse0
- Direction
- droppede0
- Value
- 35%e0
- Qualifier
- conventional tillage systeme0
- Comparator
- first‐year soybean following 5 yr of consecutive corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the conventional tillage system, yields dropped 35% from 3.01 Mg ha −1 in first‐year soybean following 5 yr of consecutive corn to 2.04 Mg ha −1 in continuous soybean.”
Claim · model-written summary
Tillage and rotation interacted significantly for protein concentration.
Not reportedTaxonDirection
Verbatim
e0“The tillage × rotation interaction was significant ( P ≤ 0.05) for protein concentration.”
Claim · model-written summary
With conventional tillage, protein concentration declined from 357 to 351 mg kg −1 between first- and fifth-year soybean after corn.
- Taxon
- soybeanGlycine maxe0
- Treatment
- fifth‐year soybean following five consecutive years of corne0
- Outcome
- protein concentratione0
- Direction
- decreasede0
- Value
- 351 mg kg −1e0
- Qualifier
- 357 mg kg −1e0
- Comparator
- first‐year soybean following five consecutive years of corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the conventional tillage system, protein concentration decreased from 357 mg kg −1 in first‐year soybean following five consecutive years of corn to 351 mg kg −1 in fifth‐year soybean following five consecutive years of corn.”
Claim · model-written summary
Protein concentration showed no clear trend under no tillage.
Not reportedTaxonDirection
Verbatim
e0“No clear trend was observed for protein concentration in the no‐tillage system.”
Claim · model-written summary
Oil concentration rose with consecutive soybean years in both tillage systems at a similar rate.
- Taxon
- soybeanGlycine maxe0
- Treatment
- consecutive years of soybean productione0
- Outcome
- Oil concentratione0
- Direction
- increasede0
- Qualifier
- both tillage systems at a similar ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil concentration increased as consecutive years of soybean production increased in both tillage systems at a similar rate.”
The same questions in other papers
rotation · yield · Glycine max (soybean)Positive and negative results
36 papers in the same direction as this paper · 107 in the opposite direction
- positive
- positive
- positive
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See all 144 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.