Abstract
Mineral and organic fertilization can be optimized by using rhizobacteria which increases dry matter, yield, and nutrients in the soil and plant, among the other biological inputs. However, the discovery of single microbes or a consortium that can benefit plants has been a challenge. In this context, this study aimed to evaluate the effects of Bacillus subtilis and Bacillus pumilus combined with mineral fertilization and sugar and alcohol industry by-products in presprouted and the initial growth phase of sugar cane seedlings. The study was carried out in two phases. Phase 1 included presprouted seedlings with T1 = untreated control, T2 = B. subtilis, T3 = B. pumilus, and T4 = B. subtilis + B. pumilus treatments. Phase 2 included the same treatments with four types of fertilization: F1 = mineral fertilization, F2 = mineral fertilization + vinasse, F3 = mineral fertilization + filter cake, and F4 = mineral fertilization + filter cake compost. Of the phase 1 treatments, T2 (B. subtilis) was the best promoter of root growth and the total dry matter compared to the control with an increase of 23.0% compared to the control. In phase 2, B. pumilus application, increased the total dry matter by 13%, the number of tillers by 37%, and the diameter of the tillers by 48% when combined with mineral fertilization. The combined application of B. subtilis and B. pumilus increased the phosphorus content by 13% in soil treated with mineral fertilization and filter cake compost. The results of the this study strongly suggest that the use of B. subtilis and B. pumilus together with these by-products can improve soil fertility parameters and decrease adverse effects associated with vinasse fertilization, in addition to providing shoot and root growth and providing collective synergy for a high yield of sugarcane production with environmental benefits.
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Claims 6
Claim · model-written summary
Bacillus subtilis treatment gave the largest increase in root growth and total dry matter of presprouted sugarcane seedlings relative to the control, by 23.0%.
- Taxon
- Sugarcanet0
- Treatment
- B. subtilise1
- Interactor
- B. subtilis
Bacillus subtilise1symbiont - Outcome
- root growth and the total dry mattere1
- Direction
- increasee1
- Value
- 23.0%e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugarcane growth and nutrition levels are differentially affected by the application of PGPR and cane waste”
e1“T2 (B. subtilis) was the best promoter of root growth and the total dry matter compared to the control with an increase of 23.0% compared to the control”
Claim · model-written summary
Bacillus pumilus application increased total dry matter of sugarcane by 13% when combined with mineral fertilization.
- Taxon
- Sugarcanet0
- Treatment
- B. pumilus applicatione2
- Interactor
- B. pumilusBacillus pumiluse2symbiont
- Outcome
- total dry mattere2
- Direction
- increasede2
- Value
- 13%e2
- Qualifier
- when combined with mineral fertilizatione2
Not reportedComparator
Verbatim
t0“Sugarcane growth and nutrition levels are differentially affected by the application of PGPR and cane waste”
e2“In phase 2, B. pumilus application, increased the total dry matter by 13%, the number of tillers by 37%, and the diameter of the tillers by 48% when combined with mineral fertilization”
Claim · model-written summary
Bacillus pumilus application increased the number of sugarcane tillers by 37% when combined with mineral fertilization.
- Taxon
- Sugarcanet0
- Treatment
- B. pumilus applicatione2
- Interactor
- B. pumilusBacillus pumiluse2symbiont
- Outcome
- the number of tillerse2
- Direction
- increasede2
- Value
- 37%e2
- Qualifier
- when combined with mineral fertilizatione2
Not reportedComparator
Verbatim
t0“Sugarcane growth and nutrition levels are differentially affected by the application of PGPR and cane waste”
e2“In phase 2, B. pumilus application, increased the total dry matter by 13%, the number of tillers by 37%, and the diameter of the tillers by 48% when combined with mineral fertilization”
Claim · model-written summary
Bacillus pumilus application increased the diameter of sugarcane tillers by 48% when combined with mineral fertilization.
- Taxon
- Sugarcanet0
- Treatment
- B. pumilus applicatione2
- Interactor
- B. pumilusBacillus pumiluse2symbiont
- Outcome
- the diameter of the tillerse2
- Direction
- increasede2
- Value
- 48%e2
- Qualifier
- when combined with mineral fertilizatione2
Not reportedComparator
Verbatim
t0“Sugarcane growth and nutrition levels are differentially affected by the application of PGPR and cane waste”
e2“In phase 2, B. pumilus application, increased the total dry matter by 13%, the number of tillers by 37%, and the diameter of the tillers by 48% when combined with mineral fertilization”
Claim · model-written summary
The combined application of B. subtilis and B. pumilus increased soil phosphorus content by 13% in soil treated with mineral fertilization and filter cake compost.
- Taxon
- Sugarcanet0
- Treatment
- combined application of B. subtilis and B. pumiluse3
- Interactor
- B. subtilisBacillus subtilise3symbiont
- Second interactor
- B. pumilusBacillus pumiluse3symbiont
- Outcome
- phosphorus contente3
- Direction
- increasede3
- Value
- 13%e3
- Qualifier
- in soil treated with mineral fertilization and filter cake composte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugarcane growth and nutrition levels are differentially affected by the application of PGPR and cane waste”
e3“The combined application of B. subtilis and B. pumilus increased the phosphorus content by 13% in soil treated with mineral fertilization and filter cake compost”
Claim · model-written summary
The authors recommend combining B. subtilis and B. pumilus with these by-products, which they suggest can improve soil fertility parameters and reduce adverse effects of vinasse fertilization.
Verbatim
t0“Sugarcane growth and nutrition levels are differentially affected by the application of PGPR and cane waste”
e4“The results of the this study strongly suggest that the use of B. subtilis and B. pumilus together with these by-products can improve soil fertility parameters and decrease adverse effects associated with vinasse fertilization”
The same questions in other papers
Bacillus subtilis · growth · Saccharum officinarum (sugarcane)Results agree
2 papers in the same direction as this paper
- positive
- positive
Bacillus subtilis · nutrient: content · Saccharum officinarum (sugarcane)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.