Abstract
Rockwool is an inert growing media popular in the hydroponics industry. Eventually the rockwool fills with plant material and must be replaced and the residuals are disposed. Composting of this material will conserve landfill space. Although the rockwool itself is stable, roots and other plant materials remaining after harvest can decompose. We studied the effect of composting greenwaste feedstock mixed with spent rockwool in the amount of 10% volume on plant growth. A greenhouse experiment was conducted with two types of soils: sandy loam and clay, each with and without rockwool, and applied at rates 0, 25, 50, and 100 t ha−1 to pots which were then seeded with okra, tomato, or chili pepper. Results indicate that plant growth of all three crops was unaffected by the presence of (10% volume) spent rockwool in the compost. In all cases, increase in application rate of compost enhanced plant growth significantly. While the growth of tomato was unaffected by soil type, shoot weights of okra and chili pepper plants were significantly lower in sandy soil compared to clay loam soil.
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Claims 7
Claim · model-written summary
Spent rockwool in compost did not affect okra growth.
- Taxon
- Okra
.jpg?width=60)
Abelmoschus esculentust0 - Treatment
- (10% volume) spent rockwool in the composte0
- Outcome
- plant growthe0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“plant growth of all three crops was unaffected by the presence of (10% volume) spent rockwool in the compost.”
t0“Okra”
Claim · model-written summary
Spent rockwool in compost did not affect tomato growth.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- (10% volume) spent rockwool in the composte0
- Outcome
- plant growthe0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth of all three crops was unaffected by the presence of (10% volume) spent rockwool in the compost.”
t0“Tomato”
Claim · model-written summary
Spent rockwool in compost did not affect chili pepper growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth of all three crops was unaffected by the presence of (10% volume) spent rockwool in the compost.”
t0“Chili Peppers”
Claim · model-written summary
Increasing compost application rate significantly enhanced growth of all three crops.
- Taxon
- Okra, Tomato, and Chili PeppersSolanum lycopersicum
CapsicumAbelmoschus esculentust0 - Treatment
- increase in application rate of composte0
- Outcome
- plant growthe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all cases, increase in application rate of compost enhanced plant growth significantly.”
t0“Okra, Tomato, and Chili Peppers”
Claim · model-written summary
Tomato growth was unaffected by soil type.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- growth of tomatoe0
- Direction
- unaffectede0
- Setting
- soil typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth of tomato was unaffected by soil type”
t0“Tomato”
Claim · model-written summary
Okra shoot weight was significantly lower in sandy soil than clay loam soil.
- Taxon
- okraAbelmoschus esculentuse0
- Treatment
- sandy soile0
- Outcome
- shoot weightse0
- Direction
- lowere0
- Comparator
- clay loam soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot weights of okra and chili pepper plants were significantly lower in sandy soil compared to clay loam soil.”
Claim · model-written summary
Chili pepper shoot weight was significantly lower in sandy soil than clay loam soil.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot weights of okra and chili pepper plants were significantly lower in sandy soil compared to clay loam soil.”
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