Abstract
Abstract Background: Stimulatory efficacy of spent mushroom compost (SMC) cannot be overemphasized. Aims: In this study, the effect of SMC on phytoremediation and plant's response to heavy metal polluted soil was investigated and suggested for the establishment of feasible soil remediation. Methods: Heavy metal polluted soil (80 kg) was sterilized at 121°C in soil sterilizer for 30 min and repeated four more times to remove microbial interference. Five kg of soil was packed into pots supplemented with SMC of Pleurotus ostreatus at different concentrations of 10, 20, 30, and 40%, and control (no SMC), and used to grow the test plant ( Megathyrsus maximus commonly known as Guinea grass) for 90 d. Effect of SMC treatments on chemical characteristics of the soil was determined through soil analysis before and after the experiment. Plant response to SMC in polluted soils was studied by observing root proliferation, plant growth, and biomass. Results: The results suggest that SMC treatment modified soil chemical characteristics, the germination index (GI), plant growth, and phytoremediation potential. The soil's pH increased from 4.3 in control to 6.8 both in 40 and 30% SMC treatments; also the soil's nutrients, cation exchange capacity (CEC), and GI improved with incremental increase in SMC treatments, while the heavy metal removal was best observed at 40 and 30% treatments. In addition, the bio‐stimulatory effect of SMC was confirmed on guinea grass root proliferation, growth, phytomass and its phytoremediation potentials on heavy metals. Conclusions: The SMC is therefore suggested for soil stimulation to improve plant's growth and phytoremediation.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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
SMC raised soil pH from 4.3 to 6.8 at 30% and 40% application.
- Taxon
- Megathyrsus maximus
.jpg?width=60)
Megathyrsus maximuse1 - Treatment
- 40 and 30% SMC treatmentse0
- Outcome
- soil's pHe0
- Direction
- increasede0
- Value
- 6.8e0
- Qualifier
- 4.3e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The soil's pH increased from 4.3 in control to 6.8 both in 40 and 30% SMC treatments”
e1“Megathyrsus maximus commonly known as Guinea grass”
Claim · model-written summary
Soil nutrients improved as SMC concentration increased.
- Taxon
- Megathyrsus maximusMegathyrsus maximuse1
- Treatment
- SMC treatmentse0
- Outcome
- soil's nutrientse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil's nutrients, cation exchange capacity (CEC), and GI improved with incremental increase in SMC treatments”
e1“Megathyrsus maximus commonly known as Guinea grass”
Claim · model-written summary
Soil cation exchange capacity improved with increasing SMC.
- Taxon
- Megathyrsus maximusMegathyrsus maximuse1
- Treatment
- SMC treatmentse0
- Outcome
- cation exchange capacity (CEC)e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil's nutrients, cation exchange capacity (CEC), and GI improved with incremental increase in SMC treatments”
e1“Megathyrsus maximus commonly known as Guinea grass”
Claim · model-written summary
Germination index improved with increasing SMC.
- Taxon
- Megathyrsus maximusMegathyrsus maximuse1
- Treatment
- SMC treatmentse0
- Outcome
- GIe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil's nutrients, cation exchange capacity (CEC), and GI improved with incremental increase in SMC treatments”
e1“Megathyrsus maximus commonly known as Guinea grass”
Claim · model-written summary
Heavy metal removal was best at 30% and 40% SMC.
- Taxon
- Megathyrsus maximusMegathyrsus maximuse1
- Treatment
- 40 and 30% treatmentse0
- Outcome
- heavy metal removale0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“heavy metal removal was best observed at 40 and 30% treatments”
e1“Megathyrsus maximus commonly known as Guinea grass”
Claim · model-written summary
SMC stimulated Guinea grass root proliferation, growth, phytomass and phytoremediation potential.
- Taxon
- guinea grassMegathyrsus maximuse0
- Treatment
- SMCe0
- Outcome
- root proliferation, growth, phytomasse0
- Direction
- bio‐stimulatorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bio‐stimulatory effect of SMC was confirmed on guinea grass root proliferation, growth, phytomass and its phytoremediation potentials on heavy metals”
Claim · model-written summary
The authors suggested SMC for soil stimulation to improve plant growth and phytoremediation.
Verbatim
e0“The SMC is therefore suggested for soil stimulation to improve plant's growth and phytoremediation”
The same questions in other papers
fertilization · nutrient: content · Megathyrsus maximus (Guinea grass)Positive and negative results
7 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
5 papers more in this group
See all 9 papers →fertilization · growth · Megathyrsus maximus (Guinea grass)Positive and negative results
22 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- no effect
25 papers more in this group
See all 29 papers →fertilization · soil: chemistry · Megathyrsus maximus (Guinea grass)Results agree
1 paper in the same direction as this paper
- positive
fertilization · molecular: metabolites · Megathyrsus maximus (Guinea grass)Results agree
2 papers in the same direction as this paper
- positive
- 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.