Paper · 2020 · Kansas Agricultural Experiment Station Research Reports

Tillage Intensity in a Long-Term Wheat-Sorghum-Fallow Rotation

A. Schlegel; A. Burnett

14
claims
42
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by

Abstract

This study was initiated in 1991 at the Kansas State University Southwest Research- Extension Center near Tribune, KS. The purpose of the study was to identify the effects of tillage intensity on precipitation capture, soil water storage, and grain yield in a wheat-sorghum-fallow rotation. Grain yields of wheat and grain sorghum increased with decreased tillage intensity in a wheat-sorghum-fallow (WSF) rotation. In 2019, available soil water at sorghum planting was greater for no-tillage (NT) than reduced tillage (RT) which was greater than conventional tillage (CT). For wheat there was a similar pattern as sorghum, with available soil water at wheat planting being in the order of NT>RT>CT. Averaged across the 19-yr study, available soil water at wheat planting was similar for NT and RT and approximately 1 inch greater than CT. Average available soil water at sorghum planting was greater in the order RT≥NT>CT. Averaged across the past 19 years, NT wheat yields were 5 bu/a greater than RT and 9 bu/a greater than CT. Grain sorghum yields in 2019 were 50% greater in long-term NT compared to short-term NT with the lowest yields with CT. Averaged across the past 19 years, sorghum yields with long-term NT have been 58% greater than with short-term NT (79 vs. 50 bu/a).

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 14

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat grain yield increased as tillage intensity decreased.

Treatment
decreased tillage intensitye0
Outcome
Grain yields of wheate0
Direction
increasede0

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

“Grain yields of wheat and grain sorghum increased with decreased tillage intensity in a wheat-sorghum-fallow (WSF) rotation.”

✓ located verbatim in the source · abstract, characters 291–415 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Sorghum grain yield increased as tillage intensity decreased.

Taxon
grain sorghumSorghum bicolore0
Treatment
decreased tillage intensitye0
Outcome
Grain yields of wheat and grain sorghume0
Direction
increasede0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yields of wheat and grain sorghum increased with decreased tillage intensity in a wheat-sorghum-fallow (WSF) rotation.”

✓ located verbatim in the source · abstract, characters 291–415 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2019, sorghum planting soil water was greatest under no tillage, then reduced tillage, then conventional tillage.

Taxon
sorghumSorghume0
Treatment
no-tillage (NT)e0
Outcome
available soil water at sorghum plantinge0
Direction
greatere0
Qualifier
In 2019e0
Comparator
reduced tillage (RT)e0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“In 2019, available soil water at sorghum planting was greater for no-tillage (NT) than reduced tillage (RT) which was greater than conventional tillage (CT).”

✓ located verbatim in the source · abstract, characters 416–573 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2019, reduced tillage had more soil water at sorghum planting than conventional tillage.

Taxon
sorghumSorghume0
Treatment
reduced tillage (RT)e0
Outcome
available soil water at sorghum plantinge0
Direction
greatere0
Comparator
conventional tillage (CT)e0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“In 2019, available soil water at sorghum planting was greater for no-tillage (NT) than reduced tillage (RT) which was greater than conventional tillage (CT).”

✓ located verbatim in the source · abstract, characters 416–573 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2019, wheat planting soil water ranked no tillage above reduced tillage above conventional tillage.

Outcome
available soil water at wheat plantinge0
Direction
NT>RT>CTe0

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

“available soil water at wheat planting being in the order of NT>RT>CT”

✓ located verbatim in the source · abstract, characters 629–698 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Across 19 years, wheat planting soil water was similar under no tillage and reduced tillage.

Treatment
NTe0
Outcome
available soil water at wheat plantinge0
Direction
similare0
Comparator
RTe0

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

“Averaged across the 19-yr study, available soil water at wheat planting was similar for NT and RT and approximately 1 inch greater than CT.”

✓ located verbatim in the source · abstract, characters 700–839 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across 19 years, no tillage wheat planting soil water was about one inch greater than conventional tillage.

Treatment
NTe0
Outcome
available soil water at wheat plantinge0
Direction
greatere0
Value
1 inche0
Comparator
CTe0

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

“Averaged across the 19-yr study, available soil water at wheat planting was similar for NT and RT and approximately 1 inch greater than CT.”

✓ located verbatim in the source · abstract, characters 700–839 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across 19 years, reduced tillage wheat planting soil water was about one inch greater than conventional tillage.

Treatment
RTe0
Outcome
available soil water at wheat plantinge0
Direction
greatere0
Value
1 inche0
Comparator
CTe0

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

“Averaged across the 19-yr study, available soil water at wheat planting was similar for NT and RT and approximately 1 inch greater than CT.”

✓ located verbatim in the source · abstract, characters 700–839 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Average sorghum planting soil water ranked reduced tillage at least as high as no tillage, above conventional tillage.

Taxon
sorghumSorghume0
Outcome
available soil water at sorghum plantinge0
Direction
greatere0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Average available soil water at sorghum planting was greater in the order RT≥NT>CT.”

✓ located verbatim in the source · abstract, characters 840–923 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across 19 years, no tillage wheat yielded 5 bu/a more than reduced tillage.

Treatment
NTe0
Outcome
wheat yieldse0
Direction
greatere0
Value
5 bu/ae0
Comparator
RTe0

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

“Averaged across the past 19 years, NT wheat yields were 5 bu/a greater than RT and 9 bu/a greater than CT.”

✓ located verbatim in the source · abstract, characters 924–1030 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across 19 years, no tillage wheat yielded 9 bu/a more than conventional tillage.

Treatment
NTe0
Outcome
wheat yieldse0
Direction
greatere0
Value
9 bu/ae0
Comparator
CTe0

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

“Averaged across the past 19 years, NT wheat yields were 5 bu/a greater than RT and 9 bu/a greater than CT.”

✓ located verbatim in the source · abstract, characters 924–1030 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2019, long term no tillage sorghum yielded 50% more than short term no tillage.

Taxon
Grain sorghumSorghum bicolore0
Treatment
long-term NTe0
Outcome
yieldse0
Direction
greatere0
Value
50%e0
Comparator
short-term NTe0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain sorghum yields in 2019 were 50% greater in long-term NT compared to short-term NT with the lowest yields with CT.”

✓ located verbatim in the source · abstract, characters 1031–1150 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Conventional tillage had the lowest sorghum yield in 2019.

Taxon
Grain sorghumSorghum bicolore0
Outcome
lowest yields with CTe0
Direction
loweste0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain sorghum yields in 2019 were 50% greater in long-term NT compared to short-term NT with the lowest yields with CT.”

✓ located verbatim in the source · abstract, characters 1031–1150 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across 19 years, long term no tillage sorghum yielded 58% more than short term no tillage.

Taxon
sorghumSorghume0
Treatment
long-term NTe0
Outcome
sorghum yieldse0
Direction
greatere0
Value
58%e0
Qualifier
79 vs. 50 bu/ae0
Comparator
short-term NTe0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Averaged across the past 19 years, sorghum yields with long-term NT have been 58% greater than with short-term NT (79 vs. 50 bu/a).”

✓ located verbatim in the source · abstract, characters 1151–1282 · show in text ↑
t0

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑
t1

“Wheat-Sorghum-Fallow Rotation”

✓ located verbatim in the source · title, characters 33–62 · show in text ↑

tillage · yield · SorghumResults differ

123 papers: 102 positive, 21 negative or no effect

101 papers in the same direction as this paper · 17 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

119 papers more in this group

See all 123 papers →

tillage · soil: physics · SorghumPositive and negative results

16 papers: 14 positive, 2 negative or no effect

13 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. no effect
  3. positive

12 papers more in this group

See all 16 papers →

tillage · yield · Sorghum bicolor (sorghum)Positive and negative results

48 papers: 29 positive, 19 negative or no effect

28 papers in the same direction as this paper · 16 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

44 papers more in this group

See all 48 papers →

tillage · soil: physics · Triticum aestivum (wheat)Positive and negative results

142 papers: 118 positive, 24 negative or no effect

117 papers in the same direction as this paper · 22 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

138 papers more in this group

See all 142 papers →

tillage · yield · Triticum aestivum (wheat)Positive and negative results

1,414 papers: 1,116 positive, 298 negative or no effect

1,115 papers in the same direction as this paper · 257 in the opposite direction · 41 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

1,410 papers more in this group

See all 1,414 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.