Abstract
Introduction: Production of strawberries in greenhouses and polytunnels is gaining popularity worldwide. This study investigated the effect of reuse of coir and peat, two substrates commonly adapted to soilless strawberry production, as well as stand-alone wood fiber from Norway spruce, a promising substrate candidate. Methods: The experiment was performed in a polytunnel at NIBIO Apelsvoll, Norway, and evaluated both virgin substrates, as well as spent materials that were used in one or two years. Yield, berry quality and plant architecture of the strawberry cultivar 'Malling Centenary' were registered. In addition, chemical and physical properties of virgin and reused substrates were investigated. Results: While plants grown in peat and wood fiber had highest yield in the first year of production, the berry yield was slightly reduced when these substrates were utilized for the second and third time. However, yield was comparable to the yield level attained in new and reused coir. Interestingly, berries grown in wood fiber had a tendency to a higher sugar accumulation. This substrate also produced the highest plants. Stand-alone wood fiber was the substrate with the highest accumulation of nitrogen during the three consecutive production cycles. All three investigated materials revealed a trend for decreased potassium accumulation. Wood fiber is characterized by the highest percentage of cellulose, however after three years of production the cellulose content was reducedto the same levels as for coir and peat. Discussion: Implementation of wood fiber as a growing medium, as well as general practice of substrate reuse can be therefore an achievable strategy for more sustainable berry production.
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Claims 11
Claim · model-written summary
Strawberries in peat and wood fiber had the highest first-year yield.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- peat and wood fibere0
- Outcome
- yielde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“plants grown in peat and wood fiber had highest yield in the first year of production”
t0“strawberry”
Claim · model-written summary
Reuse of peat slightly reduced strawberry berry yield in the second and third production cycles.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- peate1
- Outcome
- berry yielde0
- Direction
- reducede0
- Qualifier
- second and third timee0
- Comparator
- first year of productione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the berry yield was slightly reduced when these substrates were utilized for the second and third time”
e1“plants grown in peat and wood fiber had highest yield in the first year of production”
t0“strawberry”
Claim · model-written summary
Reuse of wood fiber slightly reduced strawberry berry yield in the second and third production cycles.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- wood fibere1
- Outcome
- berry yielde0
- Direction
- reducede0
- Qualifier
- second and third timee0
- Comparator
- first year of productione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the berry yield was slightly reduced when these substrates were utilized for the second and third time”
e1“plants grown in peat and wood fiber had highest yield in the first year of production”
t0“strawberry”
Claim · model-written summary
Strawberry yield in reused peat and wood fiber was comparable to new and reused coir.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- yielde0
- Direction
- comparablee0
- Comparator
- new and reused coire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield was comparable to the yield level attained in new and reused coir”
t0“strawberry”
Claim · model-written summary
Berries grown in wood fiber tended to accumulate more sugar.
- Taxon
- strawberryFragaria ×ananassat0
- Organ / stage
- berriese0
- Treatment
- wood fibere0
- Outcome
- sugar accumulatione0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“berries grown in wood fiber had a tendency to a higher sugar accumulation”
t0“strawberry”
Claim · model-written summary
Wood fiber produced the tallest strawberry plants.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- wood fibere1
- Outcome
- highest plantse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This substrate also produced the highest plants.”
e1“berries grown in wood fiber had a tendency to a higher sugar accumulation”
t0“strawberry”
Claim · model-written summary
Wood fiber accumulated the most nitrogen across three production cycles.
Not reportedTaxon
Verbatim
e0“Stand-alone wood fiber was the substrate with the highest accumulation of nitrogen during the three consecutive production cycles.”
Claim · model-written summary
Potassium accumulation tended to decline in all three substrates.
Not reportedTaxon
Verbatim
e0“All three investigated materials revealed a trend for decreased potassium accumulation.”
Claim · model-written summary
Wood fiber started with the highest cellulose percentage.
Not reportedTaxon
Verbatim
e0“Wood fiber is characterized by the highest percentage of cellulose”
Claim · model-written summary
After three years, wood fiber cellulose content fell to the same level as coir and peat.
- Outcome
- cellulose contente0
- Direction
- reducedtoe0
- Qualifier
- after three years of productione0
- Comparator
- coir and peate0
Not reportedTaxon
Verbatim
e0“after three years of production the cellulose content was reducedto the same levels as for coir and peat”
Claim · model-written summary
The authors proposed wood fiber and substrate reuse as sustainable berry-production strategies.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- Implementation of wood fiber as a growing medium, as well as general practice of substrate reusee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Implementation of wood fiber as a growing medium, as well as general practice of substrate reuse can be therefore an achievable strategy for more sustainable berry production.”
t0“strawberry”
The same questions in other papers
growing medium · yield · Fragaria x ananassa (strawberry)Positive and negative results
13 papers in the same direction as this paper · 52 in the opposite direction
- positive
- no effect
- positive
62 papers more in this group
See all 66 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.