Paper · 1995 · HortScience

Blueberry Production in a High-density, Evergreen System

R.K. Reeder; R.L. Darnell; T.A. Obreza

5
claims
7
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Blueberry plants fertilized at 3-week intervals with nitrogen (N) throughout the year and protected from freezing temperatures avoid dormancy and produce an off-season “winter” crop. Southwestern Florida offers a climate where this production system can be implemented without undue fear of freezes. `Sharpblue', `Gulfcoast', and `Warmabe' southern highbush blueberry cultivars have been planted at high density (10,000 plants/ha) to determine the feasibility of successfully establishing an evergreen production system for blueberry. Three rates of N fertilization (84, 168, and 252 kg·ha –1 ) and the use of peat or municipal solid waste (MSW) compost as soil amendments are being evaluated in this study. Initial data on plant growth indicate that, during the first 9 months of the planting, 168 kg N/ha will produce plants similar in height, but with significantly less volume, to those receiving 252 kg N/ha. MSW compost appears to be a beneficial soil amendment for blueberry establishment despite an increase in soil pH associated with the compost amendment.

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Claims 5

Observationobservedoriginal resultmeasured

Claim · model-written summary

Year round nitrogen and freeze protection allow blueberry to avoid dormancy and yield an off season winter crop.

Taxon
Blueberrye0
Treatment
fertilized at 3-week intervals with nitrogen (N) throughout the year and protected from freezing temperaturese0
Outcome
avoid dormancy and produce an off-season “winter” crope0

Verbatim

e0

“Blueberry plants fertilized at 3-week intervals with nitrogen (N) throughout the year and protected from freezing temperatures avoid dormancy and produce an off-season “winter” crop.”

✓ located verbatim in the source · abstract, characters 0–182 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 168 kg N/ha, plant height was similar to 252 kg N/ha in the first nine months.

Taxon
Blueberryt0
Treatment
168 kg N/hae0
Outcome
heighte0
Direction
similare0
Qualifier
first 9 monthse0
Comparator
252 kg N/hae0

Verbatim

e0

“during the first 9 months of the planting, 168 kg N/ha will produce plants similar in height, but with significantly less volume, to those receiving 252 kg N/ha.”

✓ located verbatim in the source · abstract, characters 752–913 · show in text ↑
t0

“Blueberry”

✓ located verbatim in the source · title, characters 0–9 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

At 168 kg N/ha, plant volume was significantly lower than at 252 kg N/ha.

Taxon
Blueberryt0
Treatment
168 kg N/hae0
Outcome
volumee0
Direction
lesse0
Qualifier
first 9 monthse0
Comparator
252 kg N/hae0

Verbatim

e0

“during the first 9 months of the planting, 168 kg N/ha will produce plants similar in height, but with significantly less volume, to those receiving 252 kg N/ha.”

✓ located verbatim in the source · abstract, characters 752–913 · show in text ↑
t0

“Blueberry”

✓ located verbatim in the source · title, characters 0–9 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Municipal solid waste compost appeared beneficial for blueberry establishment.

Taxon
blueberrye0
Treatment
MSW composte0
Outcome
blueberry establishmente0
Direction
beneficiale0

Not reportedComparator

Verbatim

e0

“MSW compost appears to be a beneficial soil amendment for blueberry establishment despite an increase in soil pH associated with the compost amendment.”

✓ located verbatim in the source · abstract, characters 914–1065 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Compost amendment was associated with increased soil pH.

Treatment
compost amendmente0
Outcome
soil pHe0
Direction
increasee0

Not reportedTaxon

Verbatim

e0

“MSW compost appears to be a beneficial soil amendment for blueberry establishment despite an increase in soil pH associated with the compost amendment.”

✓ located verbatim in the source · abstract, characters 914–1065 · show in text ↑

nitrogen · growth · VacciniumPositive and negative results

8 papers: 5 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

fertilization · growth · VacciniumPositive and negative results

20 papers: 16 positive, 4 negative or no effect

15 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

16 papers more in this group

See all 20 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.