Paper · 1973 · Canadian Journal of Plant Science

EFFECTS OF SOIL AMENDMENTS ON THE GROWTH AND PRODUCTIVITY OF THE HIGHBUSH BLUEBERRY

L. R. TOWNSEND

5
claims
10
verbatim quotes
4
citations
3
research areas
✓
Open access

Abstract

In a 6-yr field study with highbush blueberries (Vaccinium corymbosum L.) the incorporation of raw sawdust or peat with the soil, plus surface-applied fertilizer, did not increase yields, bush size, or vigor. Control bushes were more vigorous, produced higher yields with larger fruit, and usually had lower levels of all nutrients, Ca excepted, than those receiving the other treatments even though the differences were not generally significant at the 5% level. Regression equations revealed that leaf Ca, bush size, and winter injury were the most important variables associated with yields, whereas fruit size was most closely related to leaf Ca, Mg, and N.

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Claims 5

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sawdust or peat with surface fertilizer did not increase yield, bush size, or vigor.

Taxon
HIGHBUSH BLUEBERRYVaccinium corymbosumt0
Treatment
raw sawdust or peate0
Outcome
yields, bush size, or vigore0
Direction
did not increasee0

Not reportedComparator

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

Vaccinium corymbosum
Vaccinium corymbosum · TaxonThe original Uploader was Oven Fresh at English Wikipedia · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the incorporation of raw sawdust or peat with the soil, plus surface-applied fertilizer, did not increase yields, bush size, or vigor”

✓ located verbatim in the source · abstract, characters 74–207 · show in text ↑
t0

“HIGHBUSH BLUEBERRY”

✓ located verbatim in the source · title, characters 65–83 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Control bushes were more vigorous and yielded more and larger fruit.

Taxon
HIGHBUSH BLUEBERRYVaccinium corymbosumt0
Outcome
more vigorous, produced higher yields with larger fruite0
Comparator
Control bushese0

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

Vaccinium corymbosum
Vaccinium corymbosum · TaxonThe original Uploader was Oven Fresh at English Wikipedia · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Control bushes were more vigorous, produced higher yields with larger fruit”

✓ located verbatim in the source · abstract, characters 209–284 · show in text ↑
t0

“HIGHBUSH BLUEBERRY”

✓ located verbatim in the source · title, characters 65–83 · show in text ↑
Observationobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Controls usually had lower nutrient levels except calcium; differences generally lacked 5% significance.

Taxon
HIGHBUSH BLUEBERRYVaccinium corymbosumt0
Outcome
lower levels of all nutrients, Ca exceptede0

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

Vaccinium corymbosum
Vaccinium corymbosum · TaxonThe original Uploader was Oven Fresh at English Wikipedia · Public domain · Wikimedia Commons ↗

Verbatim

e0

“usually had lower levels of all nutrients, Ca excepted, than those receiving the other treatments even though the differences were not generally significant at the 5% level”

✓ located verbatim in the source · abstract, characters 290–462 · show in text ↑
t0

“HIGHBUSH BLUEBERRY”

✓ located verbatim in the source · title, characters 65–83 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Leaf calcium, bush size and winter injury were the most important variables associated with yield.

Taxon
HIGHBUSH BLUEBERRYVaccinium corymbosumt0
Compound
Cae0
Outcome
yieldse0

Not reportedDirection

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

Vaccinium corymbosum
Vaccinium corymbosum · TaxonThe original Uploader was Oven Fresh at English Wikipedia · Public domain · Wikimedia Commons ↗

Verbatim

e0

“leaf Ca, bush size, and winter injury were the most important variables associated with yields”

✓ located verbatim in the source · abstract, characters 499–593 · show in text ↑
t0

“HIGHBUSH BLUEBERRY”

✓ located verbatim in the source · title, characters 65–83 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Fruit size was most closely related to leaf calcium, magnesium and nitrogen.

Taxon
HIGHBUSH BLUEBERRYVaccinium corymbosumt0
Compound
Ca, Mg, and Ne0
Outcome
fruit sizee0

Not reportedDirection

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

Vaccinium corymbosum
Vaccinium corymbosum · TaxonThe original Uploader was Oven Fresh at English Wikipedia · Public domain · Wikimedia Commons ↗

Verbatim

e0

“fruit size was most closely related to leaf Ca, Mg, and N”

✓ located verbatim in the source · abstract, characters 603–660 · show in text ↑
t0

“HIGHBUSH BLUEBERRY”

✓ located verbatim in the source · title, characters 65–83 · show in text ↑

growing medium · yield · Vaccinium corymbosum (highbush blueberry)Positive and negative results

11 papers: 9 positive, 2 negative or no effect

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

  1. positive
  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.