Abstract
This study evaluates the impact of cultural practices and cultural associations on the density, morphological and biochemical characteristics of bacteria PGPR in a tomato experimental field in Saguia, Niamey region of Niger. After the experiments, morphological and biochemical analyses (Gram, API 20E) were carried out. The results show that the microbial density varies significantly with the type and dose of fertilizer, with maximum values observed below the recommended dose in ASD medium and under the poultry dropper in PDA medium. The bacterial genera PGPR identified are Bacillus spp., Serratia rubidaea, Burkholderia cepacia and Stenotrophomonas maltophilia, as well as fungi such as Candida non albicans and Aspergillus fumigatus. Crop associations also influence microbial diversity, although less markedly than organic amendments. The study concludes that organic fertilizers, particularly at optimized doses, promote soil biological fertility by stimulating the density and diversity of beneficial microorganisms. These results support the adoption of sustainable agroecological practices to improve market productivity in Sahelian areas.
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Claims 6
Claim · model-written summary
Microbial density in the tomato field varied significantly with the type and dose of fertilizer.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- type and dose of fertilizere0
- Outcome
- microbial densitye0
- Direction
- variese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“the microbial density varies significantly with the type and dose of fertilizer”
Claim · model-written summary
Maximum microbial density in ASD medium was observed below the recommended fertilizer dose.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- below the recommended dosee0
- Outcome
- maximum valuese0
- Direction
- maximume0
- Setting
- ASD mediume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“maximum values observed below the recommended dose in ASD medium”
Claim · model-written summary
Maximum microbial density in PDA medium was observed under poultry dropping.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- the poultry droppere0
- Outcome
- maximum valuese0
- Direction
- maximume0
- Setting
- PDA mediume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“maximum values observed below the recommended dose in ASD medium and under the poultry dropper in PDA medium”
Claim · model-written summary
PGPR genera identified were Bacillus spp., Serratia rubidaea, Burkholderia cepacia and Stenotrophomonas maltophilia, plus fungi Candida non albicans and Aspergillus fumigatus.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- bacterial genera PGPR identifiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The bacterial genera PGPR identified are Bacillus spp., Serratia rubidaea, Burkholderia cepacia and Stenotrophomonas maltophilia, as well as fungi such as Candida non albicans and Aspergillus fumigatus”
Claim · model-written summary
Crop associations also influenced microbial diversity, less markedly than organic amendments.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Crop associationse0
- Outcome
- microbial diversitye0
- Direction
- influencee0
- Comparator
- organic amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“Crop associations also influence microbial diversity, although less markedly than organic amendments”
Claim · model-written summary
The authors conclude that organic fertilizers, particularly at optimized doses, promote soil biological fertility by stimulating density and diversity of beneficial microorganisms.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- organic fertilizerse0
- Outcome
- soil biological fertilitye0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“organic fertilizers, particularly at optimized doses, promote soil biological fertility by stimulating the density and diversity of beneficial microorganisms”