Paper · 2010 · Crop Management

Long‐term Crop Rotation and Tillage Affects Wheat and Double‐crop Soybean and Selected Soil Properties

Kenneth W. Kelley; Daniel W. Sweeney

11
claims
17
verbatim quotes
7
citations
1
research areas
—
Not open access

Abstract

Field studies were conducted from 1996 through 2006 in southeastern Kansas to evaluate the influence of previous crop [corn, Zea mays L.; grain sorghum, Sorghum bicolor (L.); and soybean, Glycine max (L.) Merr.] and tillage system (conventional versus no‐till) on grain yield of hard red winter wheat ( Triticum aestivum L.) and double‐crop soybean in a 2‐year rotation. On average, wheat yield was greater following corn or soybean than following grain sorghum. Yield of double‐crop soybean averaged 20% greater when wheat followed corn or grain sorghum than when wheat followed full‐season soybean. Tillage system influenced grain yield of double‐crop soybean more than it influenced wheat yield. Double‐crop soybean yield often was greater for continuous no‐till than for conventional or one‐time no‐till per cropping cycle. Soil analyses at the end of the study showed that total C and total N were greater for no‐till than for conventional in the 0‐ to 3‐inch depth, but total C and total N were greater for conventional than no‐till in the 3‐ to 6‐inch depth. In the multi‐cropping systems of the eastern Great Plains, both crop rotation and tillage system can significantly influence grain yield and selected soil properties.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat yield was greater after corn than after grain sorghum.

Treatment
following corne0
Outcome
wheat yielde0
Direction
greatere0
Comparator
following grain sorghume0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“On average, wheat yield was greater following corn or soybean than following grain sorghum.”

✓ located verbatim in the source · abstract, characters 371–462 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat yield was greater after soybean than after grain sorghum.

Treatment
soybeane0
Outcome
wheat yielde0
Direction
greatere0
Comparator
following grain sorghume0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“On average, wheat yield was greater following corn or soybean than following grain sorghum.”

✓ located verbatim in the source · abstract, characters 371–462 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Double-crop soybean yield was 20% greater when wheat followed corn rather than full-season soybean.

Taxon
soybeanGlycine maxe0
Treatment
wheat followed corne0
Outcome
Yield of double‐crop soybeane0
Direction
greatere0
Value
20%e0
Comparator
wheat followed full‐season soybeane0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Yield of double‐crop soybean averaged 20% greater when wheat followed corn or grain sorghum than when wheat followed full‐season soybean.”

✓ located verbatim in the source · abstract, characters 463–600 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Double-crop soybean yield was 20% greater when wheat followed grain sorghum rather than full-season soybean.

Taxon
soybeanGlycine maxe0
Treatment
wheat followed corn or grain sorghume0
Outcome
Yield of double‐crop soybeane0
Direction
greatere0
Value
20%e0
Comparator
wheat followed full‐season soybeane0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Yield of double‐crop soybean averaged 20% greater when wheat followed corn or grain sorghum than when wheat followed full‐season soybean.”

✓ located verbatim in the source · abstract, characters 463–600 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tillage influenced double-crop soybean yield more than wheat yield.

Taxon
soybeanGlycine maxe0
Outcome
grain yield of double‐crop soybeane0
Direction
moree0
Comparator
wheat yielde0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Tillage system influenced grain yield of double‐crop soybean more than it influenced wheat yield.”

✓ located verbatim in the source · abstract, characters 601–698 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Continuous no-till often raised double-crop soybean yield above conventional tillage.

Taxon
soybeanGlycine maxe0
Treatment
continuous no‐tille0
Outcome
Double‐crop soybean yielde0
Direction
greatere0
Qualifier
oftene0
Comparator
conventionale0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Double‐crop soybean yield often was greater for continuous no‐till than for conventional or one‐time no‐till per cropping cycle.”

✓ located verbatim in the source · abstract, characters 699–827 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Continuous no-till often raised double-crop soybean yield above one-time no-till.

Taxon
soybeanGlycine maxe0
Treatment
continuous no‐tille0
Outcome
Double‐crop soybean yielde0
Direction
greatere0
Qualifier
oftene0
Comparator
one‐time no‐tille0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Double‐crop soybean yield often was greater for continuous no‐till than for conventional or one‐time no‐till per cropping cycle.”

✓ located verbatim in the source · abstract, characters 699–827 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

No-till had greater total C than conventional tillage at 0 to 3 inches.

Treatment
no‐tille0
Outcome
total Ce0
Direction
greatere0
Qualifier
0‐ to 3‐inch depthe0
Comparator
conventionale0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“total C and total N were greater for no‐till than for conventional in the 0‐ to 3‐inch depth”

✓ located verbatim in the source · abstract, characters 878–970 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

No-till had greater total N than conventional tillage at 0 to 3 inches.

Treatment
no‐tille0
Outcome
total Ne0
Direction
greatere0
Qualifier
0‐ to 3‐inch depthe0
Comparator
conventionale0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“total C and total N were greater for no‐till than for conventional in the 0‐ to 3‐inch depth”

✓ located verbatim in the source · abstract, characters 878–970 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Conventional tillage had greater total C than no-till at 3 to 6 inches.

Treatment
conventionale0
Outcome
total Ce0
Direction
greatere0
Qualifier
3‐ to 6‐inch depthe0
Comparator
no‐tille0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“total C and total N were greater for conventional than no‐till in the 3‐ to 6‐inch depth.”

✓ located verbatim in the source · abstract, characters 976–1065 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Conventional tillage had greater total N than no-till at 3 to 6 inches.

Treatment
conventionale0
Outcome
total Ne0
Direction
greatere0
Qualifier
3‐ to 6‐inch depthe0
Comparator
no‐tille0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“total C and total N were greater for conventional than no‐till in the 3‐ to 6‐inch depth.”

✓ located verbatim in the source · abstract, characters 976–1065 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑

Zea mays subsp. mays · yield · Triticum aestivum (wheat)Results differ

19 papers: 13 positive, 6 negative or no effect

12 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. no effect
  3. negative

15 papers more in this group

See all 19 papers →

Zea mays subsp. mays · yield · Glycine max (soybean)Results differ

70 papers: 48 positive, 22 negative or no effect

47 papers in the same direction as this paper · 20 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

66 papers more in this group

See all 70 papers →

Sorghum · yield · Glycine max (soybean)Positive and negative results

23 papers: 20 positive, 3 negative or no effect

19 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

19 papers more in this group

See all 23 papers →

Triticum aestivum · yield · Glycine max (soybean)Positive and negative results

57 papers: 36 positive, 21 negative or no effect

35 papers in the same direction as this paper · 16 in the opposite direction · 5 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

53 papers more in this group

See all 57 papers →

Glycine max · yield · Triticum aestivum (wheat)Positive and negative results

61 papers: 45 positive, 16 negative or no effect

44 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

57 papers more in this group

See all 61 papers →

tillage · yield · Glycine max (soybean)Positive and negative results

390 papers: 264 positive, 126 negative or no effect

263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. 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.