Abstract
The soil microbiota is critical to plant performance. Improving the ability of plant-associated soil probiotics is thus essential for establishing dependable and sustainable crop yields. Although fertilizer applications may provide an effective way of steering soil microbes, it is still unknown how the positive effects of soil-borne probiotics can be maximized and how their effects are mediated. This work aims to seek the ecological mechanisms involved in cabbage growth using bio-organic fertilizers. We conducted a long-term field experiment in which we amended soil with non-sterilized organic or sterilized organic fertilizer either containing Trichoderma guizhouense NJAU4742 or lacking this inoculum and tracked cabbage plant growth and the soil fungal community. Trichoderma-amended bio-organic fertilizers significantly increased cabbage plant biomass and this effect was attributed to changes in the resident fungal community composition, including an increase in the relative abundance and number of indigenous soil growth-promoting fungal taxa. We specifically highlight the fundamental role of the biodiversity and population density of these plant-beneficial fungal taxa in improving plant growth. Together, our results suggest that the beneficial effects of bio-organic fertilizer seem to be a combination of the biological inoculum within the organic amendment as well as the indirect promotion through effects on the diversity and composition of the soil resident plant-beneficial fungal microbiome.
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Claims 4
Claim · model-written summary
Trichoderma-amended bio-organic fertilizers significantly increased cabbage plant biomass compared with fertilizers lacking the inoculum in a long-term field experiment.
- Taxon
- cabbage
Brassica oleracea var. capitatae2 - Treatment
- Trichoderma-amended bio-organic fertilizerse2
- Interactor
- Trichoderma guizhouense NJAU4742Trichoderma guizhouensee3symbiont
- Outcome
- plant biomasse2
- Direction
- increasede2
- Comparator
- lacking this inoculume3
- Setting
- long-term field experimente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We conducted a long-term field experiment”
e2“Trichoderma-amended bio-organic fertilizers significantly increased cabbage plant biomass”
e3“either containing Trichoderma guizhouense NJAU4742 or lacking this inoculum”
Claim · model-written summary
Trichoderma-amended fertilizers increased the relative abundance and number of indigenous soil growth-promoting fungal taxa.
- Taxon
- cabbageBrassica oleracea var. capitatae2
- Treatment
- Trichoderma-amended bio-organic fertilizerse2
- Outcome
- relative abundance and number of indigenous soil growth-promoting fungal taxae4
- Direction
- increasee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Trichoderma-amended bio-organic fertilizers significantly increased cabbage plant biomass”
e4“an increase in the relative abundance and number of indigenous soil growth-promoting fungal taxa”
Claim · model-written summary
Biodiversity and population density of plant-beneficial soil fungal taxa are highlighted as fundamental to improved plant growth.
- Taxon
- cabbageBrassica oleracea var. capitatae2
- Outcome
- plant growthe5
- Qualifier
- biodiversity and population density of these plant-beneficial fungal taxae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Trichoderma-amended bio-organic fertilizers significantly increased cabbage plant biomass”
e5“We specifically highlight the fundamental role of the biodiversity and population density of these plant-beneficial fungal taxa in improving plant growth”
Claim · model-written summary
Bio-organic fertilizer benefits are proposed to combine the inoculum effect with indirect promotion through the soil resident plant-beneficial fungal microbiome.
- Taxon
- cabbageBrassica oleracea var. capitatae2
- Outcome
- beneficial effectse6
- Qualifier
- indirect promotion through effects on the diversity and composition of the soil resident plant-beneficial fungal microbiomee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Trichoderma-amended bio-organic fertilizers significantly increased cabbage plant biomass”
e6“the beneficial effects of bio-organic fertilizer seem to be a combination of the biological inoculum within the organic amendment as well as the indirect promotion through effects on the diversity and composition of the soil resident plant-beneficial fungal microbiome”
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