Abstract
A 4-year trial was established in Oct. 2016 in western Oregon to evaluate the effects of various in-row mulch treatments on yield, fruit quality, and costs of installation and maintenance during establishment of northern highbush blueberry ( Vaccinium corymbosum L. ‘Duke’). The treatments included douglas fir [ Pseudotsuga menziesii (Mirb.) Franco] sawdust, black weed mat (woven polypropylene groundcover), green weed mat, and sawdust covered with black or green weed mat. Fruit were harvested during 2018–20 (second through fourth growing seasons). Weed mat color had no effect on yield or fruit quality. In 2018, yield was higher with black weed mat over sawdust mulch than with black weed mat alone, whereas mulch had no effects during 2019 and 2020, or on cumulative yield. Percent total soluble solids in the berries was highest with sawdust and weed mat alone compared with weed mat over sawdust mulches, whereas berry weight, diameter, and firmness were unaffected by mulch. Sawdust was the most expensive mulch over the lifespan of the planting because it required replenishment after 2 years. Black weed mat over sawdust resulted in the highest net profit when fruit sales and cost of materials and labor were considered.
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Claims 7
Claim · model-written summary
Weed mat color had no effect on yield or fruit quality.
- Taxon
- northern highbush blueberry
Vaccinium corymbosumt0 - Treatment
- Weed mat colore0
- Outcome
- yield or fruit qualitye0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed mat color had no effect on yield or fruit quality”
t0“Northern Highbush Blueberry”
Claim · model-written summary
Black weed mat over sawdust increased 2018 yield relative to black weed mat alone.
- Taxon
- northern highbush blueberryVaccinium corymbosumt0
- Treatment
- black weed mat over sawdust mulche0
- Outcome
- yielde0
- Direction
- highere0
- Qualifier
- In 2018e0
- Comparator
- black weed mat alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2018, yield was higher with black weed mat over sawdust mulch than with black weed mat alone”
t0“Northern Highbush Blueberry”
Claim · model-written summary
Mulch had no yield effect in 2019 and 2020 or on cumulative yield.
- Taxon
- northern highbush blueberryVaccinium corymbosumt0
- Treatment
- mulche0
- Outcome
- cumulative yielde0
- Direction
- no effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mulch had no effects during 2019 and 2020, or on cumulative yield”
t0“Northern Highbush Blueberry”
Claim · model-written summary
Total soluble solids were highest with sawdust and weed mat alone compared with weed mat over sawdust.
- Taxon
- northern highbush blueberryVaccinium corymbosumt0
- Treatment
- sawdust and weed mat alonee0
- Outcome
- Percent total soluble solids in the berriese0
- Direction
- higheste0
- Comparator
- weed mat over sawdust mulchese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percent total soluble solids in the berries was highest with sawdust and weed mat alone compared with weed mat over sawdust mulches”
t0“Northern Highbush Blueberry”
Claim · model-written summary
Berry weight, diameter, and firmness were unaffected by mulch.
- Taxon
- northern highbush blueberryVaccinium corymbosumt0
- Treatment
- mulche0
- Outcome
- berry weight, diameter, and firmnesse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“berry weight, diameter, and firmness were unaffected by mulch”
t0“Northern Highbush Blueberry”
Claim · model-written summary
Sawdust was the most expensive mulch because replenishment was required after two years.
- Taxon
- northern highbush blueberryVaccinium corymbosumt0
- Treatment
- Sawduste0
- Outcome
- most expensive mulche0
- Direction
- most expensivee0
- Qualifier
- replenishment after 2 yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sawdust was the most expensive mulch over the lifespan of the planting because it required replenishment after 2 years”
t0“Northern Highbush Blueberry”
Claim · model-written summary
Black weed mat over sawdust gave the highest net profit.
- Taxon
- northern highbush blueberryVaccinium corymbosumt0
- Treatment
- Black weed mat over sawduste0
- Outcome
- net profite0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Black weed mat over sawdust resulted in the highest net profit when fruit sales and cost of materials and labor were considered”
t0“Northern Highbush Blueberry”
The same questions in other papers
mulching · yield · Vaccinium corymbosum (highbush blueberry)Results differ
7 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
5 papers more in this group
See all 9 papers →growing medium · yield · Vaccinium corymbosum (highbush blueberry)Positive and negative results
8 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
7 papers more in this group
See all 11 papers →growing medium · quality: sugar starch · Vaccinium corymbosum (highbush blueberry)Results agree
1 paper in the same direction as this paper
- positive
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.