Paper · 1981 · Journal of the American Society for Horticultural Science

Soil, Tree, and Fruit Responses to Lime and to Type and Timing of Nitrogenous Fertilizer Applications under ‘Sturdeespur Delicious’ Apple trees1

William J. Lord; John H. Baker; Richard A. Damon

9
claims
17
verbatim quotes
10
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Incorporating high Ca lime with the soil in the planting hole for trees of ‘Sturdeespur Delicious’ apple ( Malus domestica Borkh.) on Malling-Merton 106 rootstock increased leaf Ca for the first 2 years. Annual soil applications of NH 4 NO 3 for 8 years, in comparison to applications of KNO 3 or Ca (NO 3 ) 2 , increased acidity of soil to depths of 50 to 61 cm. Soil Ca levels were reduced by NH 4 NO 3 but were not increased by Ca (NO 3 ) 2 . The trees were fertilized either 1 month prior to bloom or at bloom. Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High-calcium lime raised apple leaf calcium for the first two years.

Treatment
Incorporating high Ca lime with the soil in the planting holee0
Outcome
leaf Cae0
Direction
increasede0
Qualifier
for the first 2 yearse0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValue

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Incorporating high Ca lime with the soil in the planting hole for trees of ‘Sturdeespur Delicious’ apple ( Malus domestica Borkh.) on Malling-Merton 106 rootstock increased leaf Ca for the first 2 years”

✓ located verbatim in the source · abstract, characters 9–211 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ammonium nitrate increased soil acidity compared with nitrate alternatives.

Treatment
NH 4 NO 3e0
Outcome
acidity of soile0
Direction
increasede0
Qualifier
to depths of 50 to 61 cme0
Comparator
applications of KNO 3 or Ca (NO 3 ) 2e0

Not reportedMaterialOrgan / stageInteractorInteractor roleSettingValue

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Annual soil applications of NH 4 NO 3 for 8 years, in comparison to applications of KNO 3 or Ca (NO 3 ) 2 , increased acidity of soil to depths of 50 to 61 cm”

✓ located verbatim in the source · abstract, characters 213–371 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ammonium nitrate reduced soil calcium.

Treatment
NH 4 NO 3e0
Outcome
Soil Ca levelse0
Direction
reducede0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Soil Ca levels were reduced by NH 4 NO 3”

✓ located verbatim in the source · abstract, characters 373–413 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Calcium nitrate did not increase soil calcium.

Treatment
Ca (NO 3 ) 2e0
Outcome
Soil Ca levelse0
Direction
not increasede0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Soil Ca levels were reduced by NH 4 NO 3 but were not increased by Ca (NO 3 ) 2”

✓ located verbatim in the source · abstract, characters 373–452 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen source and application timing had no appreciable influence on tree growth and leaf nutrition.

Treatment
Time of application or N sourcee0
Outcome
tree growth, leaf nutritione0
Direction
no appreciable influencee0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage”

✓ located verbatim in the source · abstract, characters 524–702 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen source and application timing had no appreciable influence on yield.

Treatment
Time of application or N sourcee0
Outcome
yielde0
Direction
no appreciable influencee0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage”

✓ located verbatim in the source · abstract, characters 524–702 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen source and application timing had no appreciable influence on fruit calcium.

Treatment
Time of application or N sourcee0
Outcome
fruit Ca levelse0
Direction
no appreciable influencee0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage”

✓ located verbatim in the source · abstract, characters 524–702 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen source and application timing had no appreciable influence on bitter pit and cork spot.

Treatment
Time of application or N sourcee0
Outcome
bitter pit and cork spote0
Direction
no appreciable influencee0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage”

✓ located verbatim in the source · abstract, characters 524–702 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen source and application timing had no appreciable influence on internal breakdown after storage.

Treatment
Time of application or N sourcee0
Outcome
internal breakdown after storagee0
Direction
no appreciable influencee0

Not reportedMaterialOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage”

✓ located verbatim in the source · abstract, characters 524–702 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 132–137 · show in text ↑

calcium atom · nutrient: content · Malus domestica (apple)Results differ

51 papers: 37 positive, 14 negative or no effect

36 papers in the same direction as this paper · 14 in the opposite direction

  1. positive
  2. no effect
  3. no effect

47 papers more in this group

See all 51 papers →

lime · nutrient: content · Malus domestica (apple)Positive and negative results

11 papers: 10 positive, 1 negative or no effect

9 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

7 papers more in this group

See all 11 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.