Abstract
Amelioration of degraded soils has triggered interest regarding alternatives to supply nutrient and improve microbial diversity through the integrated use of organic manure and biofertilizers. In this light, a screenhouse experiment set in a completely randomized design (CRD) with seven (7) treatments, Bacillus thurin- giensis (5 ml), digestate (22.4 t ha-1), 50% of digestate + NPK 15:15:15 (11.2 & 3.1 t ha-1), Digestate + B. thuringiensis (22.4 t ha-1 & 5 ml), Digestate + B. thu- ringiensis + Glomus mosseae 22.4 t ha-1, 5 ml & 500 g), positive control (NPK 15:15:15) and negative control with no treatment, replicated three (3) times was done. This research was carried out in the screen house of the department of soil science and land management, Faculty of Agriculture, University of Benin, with the aim of evaluating the agronomic value of anaerobic digestate (derived from cattle rumen content waste), inoculants of B. thuringiensis and G. mosseae in comparison with chemical fertilizer (NPK 15:15:15), while determining its’ ef- fect on soil microbial properties, growth and yield of tomato. The results showed that application of NPK 15:15:15 at a rate of 6.1 t ha-1 caused a significant de- crease in number of leaves of the tomato plant with a total of 50 and 56 leaves/ plant in pots treated with NPK 15:15:15, and a combination of digestate and NPK respectively at 8 WAT. At 8 WAT, total organic carbon of the soil was best im- proved in soil with a treatment of digestate, bacteria and mycorrhiza inoculum (61%), and was also significantly improved in the positive control (63%), with the pots with no treatments having the least amount of organic carbon (1.8%). Total nitrogen was highest in treatments of digestate and both inoculums at 5.7% and least in soils with a combination of digestate and NPK 15:15:15 (0.3%). Soil microbial population of bacteria and fungi increased by 20% and 43% respective- ly. These findings indicate that a combination of anaerobic digestate, B. thurin- giensis and G. mosseae applied at 22.4 t ha -1, 5 ml and 500 g respectively is best suited for tomato cultivation and is recommended for optimum growth and yield of tomato in the study area
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Claims 10
Claim · model-written summary
NPK application significantly decreased tomato leaf number.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- NPK 15:15:15 at a rate of 6.1 t ha-1e0
- Outcome
- number of leavese0
- Direction
- de- creasee0
- Value
- 50e0
- Qualifier
- 8 WATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of NPK 15:15:15 at a rate of 6.1 t ha-1 caused a significant de- crease in number of leaves of the tomato plant with a total of 50 and 56 leaves/ plant in pots treated with NPK 15:15:15, and a combination of digestate and NPK respectively at 8 WAT”
Claim · model-written summary
Digestate plus NPK pots had 56 tomato leaves per plant at 8 WAT.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- a combination of digestate and NPKe0
- Outcome
- leaves/ plante0
- Value
- 56e0
- Qualifier
- 8 WATe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50 and 56 leaves/ plant in pots treated with NPK 15:15:15, and a combination of digestate and NPK respectively at 8 WAT”
t0“growth and yield of tomato.”
Claim · model-written summary
Digestate with bacterial and mycorrhizal inocula improved soil organic carbon to 61%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- digestate, bacteria and mycorrhiza inoculume0
- Outcome
- total organic carbon of the soile0
- Direction
- im- provede0
- Value
- 61%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total organic carbon of the soil was best im- proved in soil with a treatment of digestate, bacteria and mycorrhiza inoculum (61%)”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
NPK control soil organic carbon was significantly improved to 63%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- positive controle0
- Outcome
- total organic carbon of the soile0
- Direction
- improvede0
- Value
- 63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total organic carbon of the soil was best im- proved in soil with a treatment of digestate, bacteria and mycorrhiza inoculum (61%), and was also significantly improved in the positive control (63%)”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
Untreated pots had the least soil organic carbon, 1.8%.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- organic carbone0
- Direction
- leaste0
- Value
- 1.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pots with no treatments having the least amount of organic carbon (1.8%)”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
Digestate with both inocula yielded the highest soil total nitrogen at 5.7%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- digestate and both inoculumse0
- Outcome
- Total nitrogene0
- Direction
- higheste0
- Value
- 5.7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total nitrogen was highest in treatments of digestate and both inoculums at 5.7%”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
Digestate plus NPK soil had the least total nitrogen, 0.3%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- a combination of digestate and NPK 15:15:15e0
- Outcome
- Total nitrogene0
- Direction
- leaste0
- Value
- 0.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total nitrogen was highest in treatments of digestate and both inoculums at 5.7% and least in soils with a combination of digestate and NPK 15:15:15 (0.3%)”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
Soil bacterial population increased by 20%.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- Soil microbial population of bacteriae0
- Direction
- increasede0
- Value
- 20%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil microbial population of bacteria and fungi increased by 20% and 43% respective- ly.”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
Soil fungal population increased by 43%.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- fungie0
- Direction
- increasede0
- Value
- 43%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil microbial population of bacteria and fungi increased by 20% and 43% respective- ly.”
e1“soil microbial properties, growth and yield of tomato.”
Claim · model-written summary
The authors recommend digestate with bacterial and mycorrhizal inocula for tomato growth and yield.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- a combination of anaerobic digestate, B. thurin- giensis and G. mosseae applied at 22.4 t ha -1, 5 ml and 500 g respectivelye0
- Interactor
- B. thurin- giensise0symbiont
- Second interactor
- G. mosseae
Funneliformis mosseaee0symbiont - Outcome
- optimum growth and yield of tomatoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a combination of anaerobic digestate, B. thurin- giensis and G. mosseae applied at 22.4 t ha -1, 5 ml and 500 g respectively is best suited for tomato cultivation and is recommended for optimum growth and yield of tomato in the study area”
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