Abstract
Abstract There are numerous reports of the beneficial effects of rotating corn ( Zea mays L.) and soybean [ Glycine max (L.) Merr.]. However, few studies have been specifically designed to document the important corn‐soybean rotation effect. The objective of this study was to determine the impact of various corn and soybean cropping patterns on the yield of both crops. The 9‐year field study conducted at two locations was managed for maximum production. Cropping sequences consisted of: continuous monoculture with the same cultivar; continuous monoculture with cultivars alternated; annual rotation of the two crops; and 1, 2, 3, 4, and 5 yr of monoculture following 5 yr of the other crop. Annually rotated corn yielded 10% better, and first‐year corn yielded 15% better than corn under monoculture. Annually rotated soybean yielded 8% better, and first year soybean yielded 17% better than soybean under monoculture. With monoculture of either crop, alternating two different cultivars annually resulted in the same yield as continuous cropping of just one cultivar. There were differences in the response of the two crops to increasing years of monoculture: the lowest corn yield was from second year corn; the lowest soybean yield was from extended monoculture. Total corn dry weight was affected by cropping sequence but soybean dry weight was not. Our data suggest that, from a yield standpoint, a superior cropping sequence for Minnesota would include at least three, and possibly more crops.
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Claims 11
Claim · model-written summary
Annually rotated corn yielded 10% better than corn under monoculture.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- Annually rotatede1
- Outcome
- yieldt0
- Direction
- bettere1
- Value
- 10%e1
- Comparator
- corn under monoculturee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e1“Annually rotated corn yielded 10% better”
e2“than corn under monoculture”
Claim · model-written summary
First-year corn yielded 15% better than corn under monoculture.
- Taxon
- cornZea mays subsp. mayse3
- Treatment
- first‐yeare3
- Outcome
- yieldt0
- Direction
- bettere3
- Value
- 15%e3
- Comparator
- corn under monoculturee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e3“first‐year corn yielded 15% better than corn under monoculture”
Claim · model-written summary
Annually rotated soybean yielded 8% better than soybean under monoculture.
- Taxon
- soybean
Glycine maxe4 - Treatment
- Annually rotatede4
- Outcome
- yieldt0
- Direction
- bettere4
- Value
- 8%e4
- Comparator
- soybean under monoculturee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e4“Annually rotated soybean yielded 8% better”
e2“than soybean under monoculture”
Claim · model-written summary
First year soybean yielded 17% better than soybean under monoculture.
- Taxon
- soybeanGlycine maxe1
- Treatment
- first yeare1
- Outcome
- yieldt0
- Direction
- bettere1
- Value
- 17%e1
- Comparator
- soybean under monoculturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e1“first year soybean yielded 17% better than soybean under monoculture”
Claim · model-written summary
With monoculture of corn, alternating two cultivars annually gave the same yield as continuous cropping of one cultivar.
- Taxon
- cornZea mays subsp. mayse3
- Treatment
- alternating two different cultivars annuallye5
- Outcome
- yielde5
- Direction
- the samee5
- Comparator
- continuous cropping of just one cultivare5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e3“rotating corn ( Zea mays L.)”
e5“With monoculture of either crop, alternating two different cultivars annually resulted in the same yield as continuous cropping of just one cultivar”
Claim · model-written summary
With monoculture of soybean, alternating two cultivars annually gave the same yield as continuous cropping of one cultivar.
- Taxon
- soybeanGlycine maxe4
- Treatment
- alternating two different cultivars annuallye5
- Outcome
- yielde5
- Direction
- the samee5
- Comparator
- continuous cropping of just one cultivare5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e4“soybean [ Glycine max (L.) Merr.]”
e5“With monoculture of either crop, alternating two different cultivars annually resulted in the same yield as continuous cropping of just one cultivar”
Claim · model-written summary
The lowest corn yield came from second year corn.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- corn yielde1
- Direction
- loweste1
- Qualifier
- second year corne1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e1“the lowest corn yield was from second year corn”
Claim · model-written summary
The lowest soybean yield came from extended monoculture.
- Taxon
- soybeanGlycine maxe1
- Outcome
- soybean yielde1
- Direction
- loweste1
- Qualifier
- extended monoculturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e1“the lowest soybean yield was from extended monoculture”
Claim · model-written summary
Total corn dry weight was affected by cropping sequence.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- cropping sequencee1
- Outcome
- Total corn dry weighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e1“Total corn dry weight was affected by cropping sequence”
Claim · model-written summary
Soybean dry weight was not affected by cropping sequence.
- Taxon
- soybeanGlycine maxe1
- Outcome
- soybean dry weighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e1“soybean dry weight was not”
Claim · model-written summary
A superior cropping sequence for Minnesota would include at least three, and possibly more, crops (authors' recommendation).
- Taxon
- Corn and SoybeanGlycine maxZea mays subsp. mayst0
- Outcome
- superior cropping sequencee5
- Qualifier
- at least three, and possibly more cropse5
- Setting
- Minnesotae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Affects Yield of Corn and Soybean”
e5“Our data suggest that, from a yield standpoint, a superior cropping sequence for Minnesota would include at least three, and possibly more crops”
The same questions in other papers
rotation · yield · Glycine max (soybean)Positive and negative results
106 papers in the same direction as this paper · 30 in the opposite direction · 7 reporting no difference from an alternative
- negative
- negative
- no effect
140 papers more in this group
See all 144 papers →rotation · yield · Zea mays (maize)Positive and negative results
253 papers in the same direction as this paper · 52 in the opposite direction · 16 reporting no difference from an alternative
- negative
- negative
- no effect
318 papers more in this group
See all 322 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.