Abstract
The exploitation of phosphate mines generates an important quantity of phosphate sludge that remains accumulated and not valorized. In this context, composting with organic matter and rhizospheric microorganisms offers an interesting alternative and that is more sustainable for agriculture. This work aims to investigate the synergetic effect of arbuscular mycorrhizal fungi (AMF), phosphate-solubilizing bacteria (PSB) and phospho-compost (PC), produced from phosphate-laundered sludge and organic wastes, and their combination on plant growth, phosphorus solubilization and phosphatase activities (alkaline and acid). Inoculated mycorrhizae and bacteria strains used in this study were selected from plant rhizosphere grown on phosphate-laundered sludge. Significant (p < .05) increases in plant growth was observed when inoculated with both consortia and PC (PC+ PSB+ AMF) similar to those recorded in plants amended with chemical fertilizer. Tripartite inoculated tomato had a significantly (p < .05) higher shoot height; shoot and root dry weight, root colonization and available P content, than the control. Co-inoculation with PC and AMF greatly increased alkaline phosphatase activity and the rate of mycorrhizal intensity. We conclude that PC and endophytic AMF and PSB consortia contribute to a tripartite inoculation in tomato seedlings and are coordinately involved in plant growth and phosphorus solubilization. These results open up promising prospects for using formulate phospho-compost enriched with phosphorus-solubilizing microorganisms (PSM) in crop cultivation as biofertilizers to solve problems of phosphate-laundered sludge accumulation.
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Claims 7
Claim · model-written summary
Combined PC, PSB and AMF increased tomato plant growth significantly, similarly to chemical fertilizer.
- Taxon
- Tomato Seedlings
Solanum lycopersicume1 - Treatment
- both consortia and PC (PC+ PSB+ AMF)e0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e2symbiont
- Second interactor
- phosphate-solubilizing bacteria (PSB)e2symbiont
- Outcome
- plant growthe0
- Direction
- increasese0
- Comparator
- plants amended with chemical fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant (p < .05) increases in plant growth was observed when inoculated with both consortia and PC (PC+ PSB+ AMF) similar to those recorded in plants amended with chemical fertilizer”
e1“Growth of Tomato Seedlings ( Solanum lycopersicum L.)”
e2“arbuscular mycorrhizal fungi (AMF), phosphate-solubilizing bacteria (PSB)”
Claim · model-written summary
Tripartite inoculation increased shoot height, shoot dry weight, and root dry weight relative to controls.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Tripartite inoculatede0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e1symbiont
- Second interactor
- phosphate-solubilizing bacteria (PSB)e1symbiont
- Outcome
- shoot height; shoot and root dry weighte0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tripartite inoculated tomato had a significantly (p < .05) higher shoot height; shoot and root dry weight, root colonization and available P content, than the control”
e1“arbuscular mycorrhizal fungi (AMF), phosphate-solubilizing bacteria (PSB)”
Claim · model-written summary
Tripartite inoculation increased root colonization relative to controls.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Tripartite inoculatede0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e1symbiont
- Second interactor
- phosphate-solubilizing bacteria (PSB)e1symbiont
- Outcome
- root colonizatione0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tripartite inoculated tomato had a significantly (p < .05) higher shoot height; shoot and root dry weight, root colonization and available P content, than the control”
e1“arbuscular mycorrhizal fungi (AMF), phosphate-solubilizing bacteria (PSB)”
Claim · model-written summary
Tripartite inoculation increased available P content relative to controls.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Tripartite inoculatede0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e1symbiont
- Second interactor
- phosphate-solubilizing bacteria (PSB)e1symbiont
- Outcome
- available P contente0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tripartite inoculated tomato had a significantly (p < .05) higher shoot height; shoot and root dry weight, root colonization and available P content, than the control”
e1“arbuscular mycorrhizal fungi (AMF), phosphate-solubilizing bacteria (PSB)”
Claim · model-written summary
Co-inoculation with PC and AMF increased alkaline phosphatase activity.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Treatment
- Co-inoculation with PC and AMFe0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e2symbiont
- Outcome
- alkaline phosphatase activitye0
- Direction
- greatly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Co-inoculation with PC and AMF greatly increased alkaline phosphatase activity and the rate of mycorrhizal intensity”
e1“tomato seedlings”
e2“arbuscular mycorrhizal fungi (AMF)”
Claim · model-written summary
Co-inoculation with PC and AMF increased mycorrhizal intensity.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Treatment
- Co-inoculation with PC and AMFe0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e2symbiont
- Outcome
- rate of mycorrhizal intensitye0
- Direction
- greatly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Co-inoculation with PC and AMF greatly increased alkaline phosphatase activity and the rate of mycorrhizal intensity”
e1“tomato seedlings”
e2“arbuscular mycorrhizal fungi (AMF)”
Claim · model-written summary
The authors suggest phospho-compost enriched with phosphorus-solubilizing microorganisms as a crop biofertilizer.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Outcome
- using formulate phospho-compost enriched with phosphorus-solubilizing microorganisms (PSM) in crop cultivation as biofertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using formulate phospho-compost enriched with phosphorus-solubilizing microorganisms (PSM) in crop cultivation as biofertilizers”
e1“tomato seedlings”
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