Abstract
We evaluated the feasibility of incorporating vermicompost as a potting amendment into a commercial ornamental production system. Pansies (Viola × wittrockiana subsp. Delta) and primulas (Primula acaulis subsp. Oriental) were grown in peat-based conventional greenhouse medium substituted with 5%, 15% and 25% (v/v) commercial and pig slurry vermicompost. Vegetative growth and flowering were evaluated and compared to plants grown with 0% vermicompost. We observed a general reduction of growth in both species with increasing concentrations of commercial and pig slurry vermicompost. The highest percentage of vermicompost (25%) showed 20% of plant mortality, high levels of stress and damage to the photosynthetic apparatus, as well as a significant reduction in the number and biomass of leaves and in flower production. Most likely, the increase in electrical conductivity and pH interacted synergistically with the decrease in air space produced after the application of vermicompost and were magnified under sub-irrigation, causing the observed effects on plant growth. Therefore the cultivation system must be taken into account when incorporating vermicompost as a growing media constituent in commercial conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Pansy growth was reduced as vermicompost concentration increased, compared with 0% vermicompost.
- Taxon
- Viola × wittrockiana
Viola ×wittrockianae1 - Treatment
- increasing concentrations of commercial and pig slurry vermicomposte0
- Outcome
- growthe0
- Direction
- reductione0
- Comparator
- 0% vermicomposte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We observed a general reduction of growth in both species with increasing concentrations of commercial and pig slurry vermicompost”
e1“Pansies (Viola × wittrockiana subsp. Delta) and primulas (Primula acaulis subsp. Oriental) were grown in peat-based conventional greenhouse medium substituted with 5%, 15% and 25% (v/v) commercial and pig slurry vermicompost”
e2“compared to plants grown with 0% vermicompost”
Claim · model-written summary
Primula growth was reduced as vermicompost concentration increased, compared with 0% vermicompost.
- Taxon
- Primula acaulis
Primula vulgarise1 - Treatment
- increasing concentrations of commercial and pig slurry vermicomposte0
- Outcome
- growthe0
- Direction
- reductione0
- Comparator
- 0% vermicomposte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We observed a general reduction of growth in both species with increasing concentrations of commercial and pig slurry vermicompost”
e1“Pansies (Viola × wittrockiana subsp. Delta) and primulas (Primula acaulis subsp. Oriental) were grown in peat-based conventional greenhouse medium substituted with 5%, 15% and 25% (v/v) commercial and pig slurry vermicompost”
e2“compared to plants grown with 0% vermicompost”
Claim · model-written summary
The highest vermicompost rate (25%) caused about 20% plant mortality compared with 0% vermicompost.
Verbatim
t0“two commercially-grown ornamental plant species”
e2“compared to plants grown with 0% vermicompost”
e3“The highest percentage of vermicompost (25%) showed 20% of plant mortality”
Claim · model-written summary
The highest vermicompost rate (25%) significantly reduced the number and biomass of leaves.
Verbatim
t0“two commercially-grown ornamental plant species”
e2“compared to plants grown with 0% vermicompost”
e3“The highest percentage of vermicompost (25%) showed 20% of plant mortality”
e4“a significant reduction in the number and biomass of leaves and in flower production”
Claim · model-written summary
The highest vermicompost rate (25%) significantly reduced flower production.
Verbatim
t0“two commercially-grown ornamental plant species”
e2“compared to plants grown with 0% vermicompost”
e3“The highest percentage of vermicompost (25%) showed 20% of plant mortality”
e4“a significant reduction in the number and biomass of leaves and in flower production”
Claim · model-written summary
Higher electrical conductivity and pH, together with less air space, likely caused the observed effects on plant growth.
Verbatim
t0“two commercially-grown ornamental plant species”
e5“the increase in electrical conductivity and pH interacted synergistically with the decrease in air space produced after the application of vermicompost”
e7“causing the observed effects on plant growth”
Claim · model-written summary
The cultivation system must be considered when incorporating vermicompost as a growing media constituent.
Verbatim
t0“two commercially-grown ornamental plant species”
e6“incorporating vermicompost as a growing media constituent in commercial conditions”
The same questions in other papers
fertilization · growth · Viola x wittrockianaPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.