Abstract
High Resolution Image Download MS PowerPoint Slide Considering the importance of rice ( Oryza sativa L.) for global food and its significant production in Brazil, strategies for its sustainable production are focused on technologies to increase productivity and decrease the use of chemical nitrogen fertilizers. An alternative for this is the use of plant growth-promoting bacteria that have proven to be efficient for increasing production and nutrient promotion in cereals. This study reports the use of coinoculation with Azospirillum brasilense and Pseudomonas fluorescens to inoculate irrigated rice through seed treatment (ST) with inoculant and seed inoculation in planting furrow technology (PFT) in four field experiments. The inoculation technologies increased rice yields in the presence of A. brasilense + P. fluorescens and with a reduction in mineral N (30 kg of N ha –1 ), equal to or greater when nitrogen fertilizer was present alone. Our results demonstrate that coinoculation with A. brasilense (strain Ab-V6) and P. fluorescens (strain CCTB03) increases the efficiency of N use from a mineral source in irrigated rice, with an increase of 37% in economic production (grains per unit of N applied), providing better agronomic performance of the crop.
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Claims 3
Claim · model-written summary
Coinoculation with both bacteria and reduced mineral nitrogen gave rice yields equal to or above fertilizer alone.
- Taxon
- rice
Oryza sativae0 - Treatment
- A. brasilense + P. fluorescense0
- Interactor
- A. brasilense
Azospirillum brasilensee0symbiont - Second interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0symbiont - Outcome
- rice yieldse0
- Direction
- equal to or greatere0
- Qualifier
- reduction in mineral N (30 kg of N ha –1 )e0
- Comparator
- nitrogen fertilizer was present alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“The inoculation technologies increased rice yields in the presence of A. brasilense + P. fluorescens and with a reduction in mineral N (30 kg of N ha –1 ), equal to or greater when nitrogen fertilizer was present alone”
Claim · model-written summary
Coinoculation increased mineral nitrogen use efficiency in irrigated rice.
- Taxon
- riceOryza sativae0
- Treatment
- coinoculation with A. brasilense (strain Ab-V6) and P. fluorescens (strain CCTB03)e0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Second interactor
- P. fluorescensPseudomonas fluorescense0symbiont
- Outcome
- efficiency of N use from a mineral sourcee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“coinoculation with A. brasilense (strain Ab-V6) and P. fluorescens (strain CCTB03) increases the efficiency of N use from a mineral source in irrigated rice”
Claim · model-written summary
Coinoculation increased grain production per unit nitrogen by 37%.
- Taxon
- riceOryza sativat0
- Treatment
- Coinoculationt0
- Outcome
- economic production (grains per unit of N applied)e0
- Direction
- increasee0
- Value
- 37%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with an increase of 37% in economic production (grains per unit of N applied)”
t0“Coinoculation with Growth-Promoting Bacteria Increases the Efficiency of Nitrogen Use by Irrigated Rice”
The same questions in other papers
Azospirillum brasilense · yield · Oryza sativa (rice)Results differ
15 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- no effect
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See all 19 papers →Pseudomonas fluorescens · yield · Oryza sativa (rice)Results differ
29 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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See all 31 papers →inoculation · yield · Oryza sativa (rice)Positive and negative results
381 papers in the same direction as this paper · 31 in the opposite direction · 5 reporting no difference from an alternative
- negative
- negative
- no effect
414 papers more in this group
See all 418 papers →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.