Paper · 1990 · Paper - American Society of Agricultural Engineers

Soil compaction and crop response to wheat/soybean interseeding.

Ahmad Khalilian; C. E. Hood; J. H. Palmer; et al.

8
claims
11
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

ABSTRACT Tests were conducted in Coastal Plain soils for three years to determine proper fall primary tillage for a system that supports interseeding soybean into standing wheat. The residual effects of various tillage systems and controlled traffic on soybean yield, crop response, and hardpan formation were determined. Use of a Paratill greatly reduced soil compaction, especially in the E horizon. For each tillage system, there were no significant differences in cone index values measured two and eight months after tillage in non-traffic rows. A good correlation between average soil cone index in the E horizon and soybean root length was demonstrated. Deep tillage significantly increased wheat and soybean yields. Interseeded soybean consistently yielded more than double-cropped soybean planted after wheat harvest at irrigated and non-irrigated locations. Due to controlled traffic patterns associated with the interseeding system, only one deep tillage operation before small grain seeding is required for the wheat/soybean double-cropping system. The residual effect of deep tillage operations will extend for one additional year when interseeding is practiced in costal plain soils.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Paratill greatly reduced soil compaction.

Taxon
soybeanGlycine maxt0
Treatment
Paratille0
Outcome
soil compactione0
Direction
reducede0
Qualifier
E horizone0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Use of a Paratill greatly reduced soil compaction, especially in the E horizon.”

✓ located verbatim in the source · abstract, characters 322–401 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 43–50 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Cone index did not differ significantly between two and eight months after tillage in non-traffic rows.

Taxon
soybeanGlycine maxt0
Outcome
cone index valuese0
Direction
no significant differencese0
Qualifier
non-traffic rowse0
Comparator
two and eight months after tillagee0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“there were no significant differences in cone index values measured two and eight months after tillage in non-traffic rows.”

✓ located verbatim in the source · abstract, characters 427–550 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 43–50 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Soybean root length correlated with mean soil cone index in the E horizon.

Taxon
soybeanGlycine maxe0
Outcome
soybean root lengthe0
Comparator
average soil cone index in the E horizone0

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“A good correlation between average soil cone index in the E horizon and soybean root length was demonstrated.”

✓ located verbatim in the source · abstract, characters 551–660 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Deep tillage significantly increased wheat yield.

Treatment
Deep tillagee0
Outcome
wheate0
Direction
increasede0

Not reportedComparator

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

“Deep tillage significantly increased wheat and soybean yields.”

✓ located verbatim in the source · abstract, characters 661–723 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Deep tillage significantly increased soybean yield.

Taxon
soybeanGlycine maxe0
Treatment
Deep tillagee0
Outcome
soybean yieldse0
Direction
increasede0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Deep tillage significantly increased wheat and soybean yields.”

✓ located verbatim in the source · abstract, characters 661–723 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Interseeded soybean yielded more than double-cropped soybean at irrigated and non-irrigated locations.

Taxon
soybeanGlycine maxe0
Treatment
Interseeded soybeane0
Outcome
yieldede0
Direction
more thane0
Comparator
double-cropped soybean planted after wheat harveste0
Setting
irrigated and non-irrigated locationse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Interseeded soybean consistently yielded more than double-cropped soybean planted after wheat harvest at irrigated and non-irrigated locations.”

✓ located verbatim in the source · abstract, characters 724–867 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors concluded that one deep tillage operation before small grain seeding is required with controlled traffic interseeding.

Outcome
one deep tillage operation before small grain seedinge0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“only one deep tillage operation before small grain seeding is required for the wheat/soybean double-cropping system.”

✓ located verbatim in the source · abstract, characters 944–1060 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors concluded that residual deep tillage effects extend one additional year with interseeding.

Taxon
soybeanGlycine maxt0
Outcome
residual effect of deep tillage operationse0
Value
one additional yeare0
Setting
costal plain soilse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The residual effect of deep tillage operations will extend for one additional year when interseeding is practiced in costal plain soils.”

✓ located verbatim in the source · abstract, characters 1061–1197 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 43–50 · show in text ↑

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

38 papers: 19 positive, 19 negative or no effect

18 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

34 papers more in this group

See all 38 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.