Paper · 1966 · Agronomy Journal

Responses of Potato Plants to Fertilization and Soil Moisture Tension Under Induced Soil Compaction1

Herman Timm; W. J. Flocker

17
claims
32
verbatim quotes
38
citations
2
research areas
—
Not open access

Abstract

Abstract Potato plants were grown 3 different years in noncompacted, moderately compacted, and severely compacted soils. Changes in yield and quality of tubers were measured against different levels of N and P and against soil moisture tension. Total and U. S. No. 1 tuber yields were affected adversely by compacted soil. Tuber deformity was confined to angular development conforming to the shape of adjacent clods. Second growth and growth cracks in tubers were of no consequence. No consistent change in specific gravity was found. Neither yield nor quality of the tubers was enhanced by use of N higher than 180 pounds per acre. Addition of P had no appreciable effect. Soil P reserves were high. Tuber yield and quality in all soils were best when the soil moisture tension was near 0.5 atm. At a lower tension (0.2 atm) enlarged lenticels were more prevalent, and at a higher tension (0.7 atm) the yield and percent of U. S. No. 1 tubers diminished in severely compacted soil. Without proper control of the soil moisture regime in compacted soils, loss in tuber yield and quality could be accentuated. Neither changes in fertilizer nor irrigation practices alleviated the adverse effects of soil compaction on potato yield or quality.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 17

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Compacted soil adversely affected total tuber yield.

Taxon
Potato plantsSolanum tuberosumt0
Treatment
compacted soile0
Outcome
Totale0
Direction
affected adverselye0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total and U. S. No. 1 tuber yields were affected adversely by compacted soil.”

✓ located verbatim in the source · abstract, characters 245–322 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Compacted soil adversely affected U. S. No. 1 tuber yield.

Taxon
Potato plantsSolanum tuberosumt0
Treatment
compacted soile0
Outcome
U. S. No. 1 tuber yieldse0
Direction
affected adverselye0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total and U. S. No. 1 tuber yields were affected adversely by compacted soil.”

✓ located verbatim in the source · abstract, characters 245–322 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tuber deformity was angular and conformed to neighboring clods.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
Tuber deformitye0
Qualifier
angular development conforming to the shape of adjacent clodse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Tuber deformity was confined to angular development conforming to the shape of adjacent clods.”

✓ located verbatim in the source · abstract, characters 323–417 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Second growth and growth cracks were inconsequential.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
Second growth and growth cracks in tuberse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Second growth and growth cracks in tubers were of no consequence.”

✓ located verbatim in the source · abstract, characters 418–483 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Specific gravity showed no consistent change.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
specific gravitye0
Direction
No consistent changee0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“No consistent change in specific gravity was found.”

✓ located verbatim in the source · abstract, characters 484–535 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen above 180 pounds per acre did not enhance tuber yield.

Taxon
Potato plantsSolanum tuberosumt0
Treatment
N higher than 180 pounds per acree0
Outcome
yielde0
Direction
Neithere0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Neither yield nor quality of the tubers was enhanced by use of N higher than 180 pounds per acre.”

✓ located verbatim in the source · abstract, characters 536–633 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen above 180 pounds per acre did not enhance tuber quality.

Taxon
Potato plantsSolanum tuberosumt0
Treatment
N higher than 180 pounds per acree0
Outcome
quality of the tuberse0
Direction
Neithere0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Neither yield nor quality of the tubers was enhanced by use of N higher than 180 pounds per acre.”

✓ located verbatim in the source · abstract, characters 536–633 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Phosphorus addition had no appreciable effect.

Taxon
Potato plantsSolanum tuberosumt0
Treatment
Addition of Pe0
Outcome
no appreciable effecte0
Direction
no appreciable effecte0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Addition of P had no appreciable effect.”

✓ located verbatim in the source · abstract, characters 634–674 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Soil phosphorus reserves were high.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
Soil P reservese0
Direction
highe0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Soil P reserves were high.”

✓ located verbatim in the source · abstract, characters 675–701 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Tuber yield was best near 0.5 atm soil moisture tension.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
Tuber yielde0
Direction
beste0
Value
0.5 atme0
Qualifier
in all soilse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Tuber yield and quality in all soils were best when the soil moisture tension was near 0.5 atm.”

✓ located verbatim in the source · abstract, characters 702–797 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Tuber quality was best near 0.5 atm soil moisture tension.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
qualitye0
Direction
beste0
Value
0.5 atme0
Qualifier
in all soilse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Tuber yield and quality in all soils were best when the soil moisture tension was near 0.5 atm.”

✓ located verbatim in the source · abstract, characters 702–797 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Enlarged lenticels were more prevalent at 0.2 atm.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
enlarged lenticelse0
Direction
more prevalente0
Value
0.2 atme0
Setting
lower tensione0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“At a lower tension (0.2 atm) enlarged lenticels were more prevalent”

✓ located verbatim in the source · abstract, characters 798–865 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

At 0.7 atm, tuber yield diminished in severely compacted soil.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
yielde0
Direction
diminishede0
Value
0.7 atme0
Setting
severely compacted soile0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“at a higher tension (0.7 atm) the yield and percent of U. S. No. 1 tubers diminished in severely compacted soil.”

✓ located verbatim in the source · abstract, characters 871–983 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

At 0.7 atm, the percentage of U. S. No. 1 tubers diminished in severely compacted soil.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
percent of U. S. No. 1 tuberse0
Direction
diminishede0
Value
0.7 atme0
Setting
severely compacted soile0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“at a higher tension (0.7 atm) the yield and percent of U. S. No. 1 tubers diminished in severely compacted soil.”

✓ located verbatim in the source · abstract, characters 871–983 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Without moisture control, compaction-related tuber yield and quality losses could worsen.

Taxon
Potato plantsSolanum tuberosumt0
Outcome
loss in tuber yield and qualitye0
Qualifier
Without proper control of the soil moisture regime in compacted soilse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Without proper control of the soil moisture regime in compacted soils, loss in tuber yield and quality could be accentuated.”

✓ located verbatim in the source · abstract, characters 984–1108 · show in text ↑
t0

“Potato Plants”

✓ located verbatim in the source · title, characters 13–26 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Changes in fertilizer did not alleviate compaction damage to potato yield or quality.

Treatment
changes in fertilizere0
Outcome
adverse effects of soil compaction on potato yield or qualitye0
Direction
Neithere0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Neither changes in fertilizer nor irrigation practices alleviated the adverse effects of soil compaction on potato yield or quality.”

✓ located verbatim in the source · abstract, characters 1109–1241 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Changes in irrigation did not alleviate compaction damage to potato yield or quality.

Treatment
irrigation practicese0
Outcome
adverse effects of soil compaction on potato yield or qualitye0
Direction
Neithere0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Neither changes in fertilizer nor irrigation practices alleviated the adverse effects of soil compaction on potato yield or quality.”

✓ located verbatim in the source · abstract, characters 1109–1241 · show in text ↑

irrigation · quality: general · Solanum tuberosum (potato)Positive and negative results

9 papers: 5 positive, 4 negative or no effect

3 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

fertilization · quality: general · Solanum tuberosum (potato)Positive and negative results

41 papers: 31 positive, 10 negative or no effect

9 papers in the same direction as this paper · 31 in the opposite direction

  1. positive
  2. positive
  3. positive

37 papers more in this group

See all 41 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.