Abstract
Straw returning, a core practice in conservation tillage, promotes sustainable intensification; however, it faces challenges such as inefficient decomposition, nutrient competition, and pathogen accumulation. To address these limitations, this study aimed to develop a multifunctional microbial consortium specifically designed for straw-incorporating cropping systems. The consortium comprises four Bacillus strains with complementary enzymatic systems, isolated from diverse ecological niches. It exhibited robust lignocellulolytic enzyme production, with manganese peroxidase (7709.33 U/L), laccase (450.65 U/L), endo-β-1,4-glucanase (154.67 U/mL), and filter paper activity (309.18 U/L). The consortium significantly enhanced rice straw degradation by 37.18% and increased nitrogen (N) release by 16.13% compared to the control. Moreover, the consortium exhibited a 67.56% inhibition rate against Magnaporthe oryzae and reduced both the incidence rate and disease index of leaf blast and panicle blast. Field trials revealed increases in the rice grain yield of 9.63% and 6.94% when applied alone and 6.75% and 5.18% when co-applied with straw residues. These findings highlight the multifunctional agricultural potential of the consortium and provide a sustainable strategy to overcome the limitations of straw-incorporating farming systems.
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Claims 10
Claim · model-written summary
The four-strain Bacillus consortium showed manganese peroxidase of 7709.33 U/L.
Not reportedComparator
Verbatim
e1“manganese peroxidase (7709.33 U/L)”
Claim · model-written summary
The four-strain Bacillus consortium showed laccase of 450.65 U/L.
Not reportedComparator
Verbatim
e1“laccase (450.65 U/L)”
Claim · model-written summary
The four-strain Bacillus consortium showed endo-β-1,4-glucanase of 154.67 U/mL.
Not reportedComparator
Verbatim
e1“endo-β-1,4-glucanase (154.67 U/mL)”
Claim · model-written summary
The four-strain Bacillus consortium showed filter paper activity of 309.18 U/L.
Not reportedComparator
Verbatim
e1“filter paper activity (309.18 U/L)”
Claim · model-written summary
The consortium significantly enhanced rice straw degradation by 37.18% relative to the control.
- Taxon
- rice
Oryza sativae1 - Treatment
- The consortiume1
- Outcome
- straw degradatione1
- Direction
- enhancede1
- Value
- 37.18%e1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The consortium significantly enhanced rice straw degradation by 37.18% and increased nitrogen (N) release by 16.13% compared to the control”
Claim · model-written summary
The consortium increased nitrogen release from rice straw by 16.13% relative to the control.
- Taxon
- riceOryza sativae1
- Treatment
- The consortiume1
- Outcome
- nitrogen (N) releasee1
- Direction
- increasede1
- Value
- 16.13%e1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The consortium significantly enhanced rice straw degradation by 37.18% and increased nitrogen (N) release by 16.13% compared to the control”
Claim · model-written summary
The consortium inhibited Magnaporthe oryzae with a 67.56% inhibition rate.
- Treatment
- the consortiume1
- Interactor
- Magnaporthe oryzae
Pyricularia oryzaee1pathogen - Second interactor
- the consortiume1biocontrol_agent
- Outcome
- inhibition ratee1
- Value
- 67.56%e1
Not reportedTaxonComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the consortium exhibited a 67.56% inhibition rate against Magnaporthe oryzae and reduced both the incidence rate and disease index of leaf blast and panicle blast”
Claim · model-written summary
The consortium reduced the incidence rate and disease index of leaf blast and panicle blast.
- Treatment
- the consortiume1
- Interactor
- Magnaporthe oryzaePyricularia oryzaee1pathogen
- Second interactor
- the consortiume1biocontrol_agent
- Outcome
- incidence rate and disease index of leaf blast and panicle blaste1
- Direction
- reducede1
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the consortium exhibited a 67.56% inhibition rate against Magnaporthe oryzae and reduced both the incidence rate and disease index of leaf blast and panicle blast”
Claim · model-written summary
In field trials the consortium applied alone increased rice grain yield by 9.63% and 6.94%.
- Taxon
- riceOryza sativae1
- Treatment
- applied alonee1
- Outcome
- grain yielde1
- Direction
- increasese1
- Value
- 9.63% and 6.94%e1
- Setting
- Field trialse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Field trials revealed increases in the rice grain yield of 9.63% and 6.94% when applied alone and 6.75% and 5.18% when co-applied with straw residues”
Claim · model-written summary
In field trials the consortium co-applied with straw residues increased rice grain yield by 6.75% and 5.18%.
- Taxon
- riceOryza sativae1
- Treatment
- co-applied with straw residuese1
- Outcome
- grain yielde1
- Direction
- increasese1
- Value
- 6.75% and 5.18%e1
- Setting
- Field trialse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Field trials revealed increases in the rice grain yield of 9.63% and 6.94% when applied alone and 6.75% and 5.18% when co-applied with straw residues”