Abstract
Abstract Mixed municipal solid waste compost (MSWC) was evaluated as a soilless potting mix component for greenhouse production using four floricultural crops: dusty miller ( Senecio cineraria ), hybrid petunia ( Petunia × hybrida ), Japanese holly fern ( Cyrtomium falcatum ), and begonia ( Begonia × semperflorens-cultorum ). Dusty miller and petunia plugs were transplanted into 36-cell trays filled with MSWC based substrates and grown for two months. Petunia only grew well in the blend with the lowest MSWC ratio (33%), while dusty miller grew well in all MSWC blends. Japanese holly fern and begonia liners were transplanted into 15 cm (6 in) azalea pots and grown for 12 weeks in five substrates: 100% pine bark (PB), 3: 1 PB: MSWC, 1: 1 PB: MSWC, 1: 3 PB: MSWC, and commercially available Fafard 3B Mix. In addition to substrate, a controlled-release fertilizer was applied at two rates to form a two-way factorial completely randomized design. Replacement of PB with MSWC resulted at least equal plant quality and growth of begonia in the aspects of growth index, leaf greenness (SPAD value), flower number, visual rating, and shoot fresh and dry weight. For Japanese holly fern, replacement of PB with MSWC resulted in a lower visual rating, but without other negative responses in plant. For the four greenhouse crops tested, plant growth and quality were seldom negatively affected at low ratios of MSWC (25 to 33%o). However, our studies indicate the impact of blending traditional pine bark with higher than 50% MSWC is species specific.
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Claims 8
Claim · model-written summary
Petunia grew well only with the lowest compost ratio.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_flowers_in_Westgate_Gardens%2C_Canterbury.jpg?width=500)
Verbatim
e0“Petunia only grew well in the blend with the lowest MSWC ratio (33%)”
Claim · model-written summary
Dusty miller grew well in every tested compost blend.
- Taxon
- dusty miller
Gonospermum ptarmiciflorume0
- Treatment
- all MSWC blendse0
- Outcome
- grew welle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dusty miller grew well in all MSWC blends”
Claim · model-written summary
Replacing pine bark with compost gave begonia at least equal growth index, leaf greenness and flower number.
- Treatment
- MSWCe0
- Outcome
- growth index, leaf greenness (SPAD value), flower numbere0
- Direction
- at least equale0
- Comparator
- PBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Replacement of PB with MSWC resulted at least equal plant quality and growth of begonia in the aspects of growth index, leaf greenness (SPAD value), flower number, visual rating, and shoot fresh and dry weight.”
Claim · model-written summary
Replacing pine bark with compost gave begonia at least equal visual rating and shoot weights.
- Treatment
- MSWCe0
- Outcome
- visual rating, and shoot fresh and dry weighte0
- Direction
- at least equale0
- Comparator
- PBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Replacement of PB with MSWC resulted at least equal plant quality and growth of begonia in the aspects of growth index, leaf greenness (SPAD value), flower number, visual rating, and shoot fresh and dry weight.”
Claim · model-written summary
Compost replacement lowered the visual rating of Japanese holly fern.
- Taxon
- Japanese holly fern
Ilex crenatae0 - Treatment
- MSWCe0
- Outcome
- visual ratinge0
- Direction
- lowere0
- Comparator
- PBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“For Japanese holly fern, replacement of PB with MSWC resulted in a lower visual rating”
Claim · model-written summary
Compost replacement produced no other negative response in Japanese holly fern.
- Taxon
- Japanese holly fern
Ilex crenatae0 - Treatment
- MSWCe0
- Outcome
- other negative responsese0
- Direction
- withoute0
- Comparator
- PBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“For Japanese holly fern, replacement of PB with MSWC resulted in a lower visual rating, but without other negative responses in plant.”
Claim · model-written summary
At low compost ratios, greenhouse crop growth and quality were seldom harmed.
Verbatim
e0“For the four greenhouse crops tested, plant growth and quality were seldom negatively affected at low ratios of MSWC (25 to 33%o).”
t0“Four Floricultural Crops”
Claim · model-written summary
At compost proportions above 50%, the impact of pine bark blending was species specific.
- Taxon
- Floricultural Cropst0
- Treatment
- higher than 50% MSWCe0
- Outcome
- impact of blending traditional pine barke0
Not reportedDirection
Verbatim
e0“the impact of blending traditional pine bark with higher than 50% MSWC is species specific”
t0“Four Floricultural Crops”
The same questions in other papers
fertilization · growth · BegoniaPositive and negative results
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See all 7 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.