Abstract
The production of highbush blueberries is increasing worldwide. Organic production of blueberries in Sweden is presently very limited but is expected to have a great potential to expand as the berries are popular and have a good shelf life. The fact that blueberries require acid soils raises several questions concerning suitable substrates in combination with mycorrhizal inoculation and fertilization in organic production systems. Field and pot experiments have been established during 2011 and 2012 with the aim of developing a sustainable production system for high quality organic blueberries. After the second experimental year, total fruit yields were similar for plants grown in a plastic tunnel and in the open field. Yields were not affected by the addition of 10% forest soil to the peat-based substrate. Inoculation with ericoid mycorrhizal fungi had little effect on shoot length in a greenhouse pot experiment. Blueberries may be particularly suitable for organic production as the need for fertilizers is low combined with a relatively low disease pressure on the blueberry crop in the Nordic countries. The Swedish blueberry production might be expected to expand in the near future. The development of a successful and resource-efficient growing system for organic blueberries may encourage new blueberry growers to chose organic production.
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Claims 4
Claim · model-written summary
Total fruit yields were similar for plants grown in a plastic tunnel and in the open field.
- Taxon
- Northern highbush blueberries
Vaccinium corymbosumt0 - Treatment
- plastic tunnele0
- Outcome
- total fruit yieldse0
- Direction
- similare0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Northern highbush blueberries”
e0“total fruit yields were similar for plants grown in a plastic tunnel and in the open field”
Claim · model-written summary
Adding 10% forest soil to the peat-based substrate did not affect yields.
- Taxon
- Northern highbush blueberriesVaccinium corymbosumt0
- Treatment
- addition of 10% forest soile1
- Outcome
- Yieldse1
- Direction
- not affectede1
- Comparator
- peat-based substratee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Northern highbush blueberries”
e1“Yields were not affected by the addition of 10% forest soil to the peat-based substrate”
Claim · model-written summary
Inoculation with ericoid mycorrhizal fungi had little effect on shoot length in a greenhouse pot experiment.
- Taxon
- Northern highbush blueberriesVaccinium corymbosumt0
- Treatment
- Inoculation with ericoid mycorrhizal fungie2
- Interactor
- ericoid mycorrhizal fungie2symbiont
- Outcome
- shoot lengthe2
- Direction
- no_changeinferrede2
- Setting
- greenhouse pot experimente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Northern highbush blueberries”
e2“Inoculation with ericoid mycorrhizal fungi had little effect on shoot length in a greenhouse pot experiment”
Claim · model-written summary
The authors judge blueberries particularly suitable for organic production, given low fertilizer need and low disease pressure in the Nordic countries.
Verbatim
e3“Blueberries may be particularly suitable for organic production as the need for fertilizers is low combined with a relatively low disease pressure on the blueberry crop in the Nordic countries”
The same questions in other papers
protected cultivation · yield · Vaccinium corymbosum (highbush blueberry)Positive and negative results
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mycorrhiza · growth · Vaccinium corymbosum (highbush blueberry)Positive and negative results
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3 papers in the same direction as this paper · 5 in the opposite direction
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See all 9 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.