Abstract
Most of the soils are N and P-deficient and require high applications of chemical fertilizers to ensure optimal crop production. However, this practice poses in most cases serious environmental issues. In recent years, inoculation with beneficial bacteria has emerged as a safe and sustainable alternative to chemical fertilizers. In this context, we investigated the effect of two symbiotic Agrobacterium radiobacter strains (LMR670 and LMR676) and two plant growth-promoting rhizobacteria Bacillus sp. (M131) and Enterobacter sp. (P1S6), as single or combined inoculants, on common bean growth and yield under N and P-deficient conditions. In a first trial, Agrobacterium strains’ symbiotic efficiency with common bean was evaluated in a low phosphorus and nitrogen soil under greenhouse conditions. Strain LMR670 recorded the highest nodules number (53 nodules per plant) and shoot dry weight (0.553 g plant-1). This strain was then used in combination with the PGP rhizobacteria in a common bean co-inoculation assay under sufficient and deficient P levels (80 kg ha-1of P and No P added). Single inoculation with LMR670 recorded the highest shoot dry weight (82% increase compared to non-fertilized control) compared to combined inoculants (46-47% increase). To corroborate the obtained results, a field experiment was conducted using the same treatments. LMR670 as a single inoculant or mixed with M131 was consistently effective leading to common bean yields comparable to N and P fertilized plants (13.07 t ha-1 and 12.35 t ha-1 respectively). In addition, single inoculation with the multi-PGP strain M131 showed positive effects on all common bean growth parameters and yield value (14 t ha-1); exceeding even N and P fertilized control plants. These results suggest that the strains LMR670 and M131 can be used, in a single or combined inoculation, as effective biological fertilizers for common bean cultivation to replace phosphorus and nitrogen fertilizers. Globally our results highlight the potential of native phytobeneficial strains for successful nodulation, growth and yield of common bean under N and P-deficient conditions.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
LMR670 inoculation gave the highest nodule number in common bean (53 nodules per plant) under low P and N greenhouse conditions.
- Taxon
- common bean
Phaseolus vulgarise0 - Material
- LMR670e1
- Treatment
- Strain LMR670e1
- Interactor
- LMR670e1symbiont
- Outcome
- nodules numbere1
- Direction
- higheste1
- Value
- 53 nodules per plante1
- Setting
- greenhouse conditionse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on common bean growth and yield under N and P-deficient conditions”
e1“Strain LMR670 recorded the highest nodules number (53 nodules per plant) and shoot dry weight (0.553 g plant-1)”
e2“Agrobacterium strains’ symbiotic efficiency with common bean was evaluated in a low phosphorus and nitrogen soil under greenhouse conditions”
Claim · model-written summary
LMR670 inoculation gave the highest shoot dry weight in common bean (0.553 g plant-1).
- Taxon
- common beanPhaseolus vulgarise0
- Material
- LMR670e1
- Treatment
- Strain LMR670e1
- Interactor
- LMR670e1symbiont
- Outcome
- shoot dry weighte1
- Direction
- higheste1
- Value
- 0.553 g plant-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on common bean growth and yield under N and P-deficient conditions”
e1“Strain LMR670 recorded the highest nodules number (53 nodules per plant) and shoot dry weight (0.553 g plant-1)”
Claim · model-written summary
Single inoculation with LMR670 raised common bean shoot dry weight by 82% over the non-fertilized control.
- Taxon
- common beanPhaseolus vulgarise0
- Material
- LMR670e3
- Treatment
- Single inoculation with LMR670e3
- Interactor
- LMR670e3symbiont
- Outcome
- shoot dry weighte3
- Direction
- increasee3
- Value
- 82%e3
- Comparator
- non-fertilized controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on common bean growth and yield under N and P-deficient conditions”
e3“Single inoculation with LMR670 recorded the highest shoot dry weight (82% increase compared to non-fertilized control) compared to combined inoculants (46-47% increase)”
Claim · model-written summary
Single LMR670 inoculation gave a higher common bean shoot dry weight than combined inoculants (46-47% increase).
- Taxon
- common beanPhaseolus vulgarise0
- Material
- LMR670e3
- Treatment
- Single inoculation with LMR670e3
- Interactor
- LMR670e3symbiont
- Outcome
- shoot dry weighte3
- Direction
- higheste3
- Qualifier
- 46-47% increasee3
- Comparator
- combined inoculantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on common bean growth and yield under N and P-deficient conditions”
e3“Single inoculation with LMR670 recorded the highest shoot dry weight (82% increase compared to non-fertilized control) compared to combined inoculants (46-47% increase)”
Claim · model-written summary
LMR670 alone or mixed with M131 gave common bean yields comparable to N and P fertilized plants (13.07 and 12.35 t ha-1) in the field.
- Taxon
- common beanPhaseolus vulgarise0
- Material
- LMR670e4
- Treatment
- LMR670 as a single inoculant or mixed with M131e4
- Interactor
- LMR670e4symbiont
- Second interactor
- M131e4symbiont
- Outcome
- common bean yieldse4
- Direction
- comparablee4
- Value
- 13.07 t ha-1 and 12.35 t ha-1 respectivelye4
- Qualifier
- consistently effectivee4
- Comparator
- N and P fertilized plantse4
- Setting
- a field experimente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on common bean growth and yield under N and P-deficient conditions”
e4“LMR670 as a single inoculant or mixed with M131 was consistently effective leading to common bean yields comparable to N and P fertilized plants (13.07 t ha-1 and 12.35 t ha-1 respectively)”
e5“a field experiment was conducted using the same treatments”
Claim · model-written summary
Single inoculation with the multi-PGP strain M131 exceeded N and P fertilized control plants in common bean growth parameters and yield (14 t ha-1).
- Taxon
- common beanPhaseolus vulgarise0
- Material
- M131e6
- Treatment
- single inoculation with the multi-PGP strain M131e6
- Interactor
- M131e6symbiont
- Outcome
- growth parameters and yield valuee6
- Direction
- exceedinge6
- Value
- 14 t ha-1e6
- Qualifier
- showed positive effectse6
- Comparator
- N and P fertilized control plantse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on common bean growth and yield under N and P-deficient conditions”
e6“single inoculation with the multi-PGP strain M131 showed positive effects on all common bean growth parameters and yield value (14 t ha-1); exceeding even N and P fertilized control plants”
Claim · model-written summary
Strains LMR670 and M131 are recommended as biological fertilizers to replace phosphorus and nitrogen fertilizers in common bean cultivation.
- Taxon
- common beanPhaseolus vulgarise7
- Outcome
- replace phosphorus and nitrogen fertilizerse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“These results suggest that the strains LMR670 and M131 can be used, in a single or combined inoculation, as effective biological fertilizers for common bean cultivation to replace phosphorus and nitrogen fertilizers”
The same questions in other papers
inoculation · growth · Phaseolus vulgaris (common bean)Results differ
105 papers in the same direction as this paper · 20 in the opposite direction
- negative
- negative
- negative
122 papers more in this group
See all 126 papers →inoculation · yield · Phaseolus vulgaris (common bean)Positive and negative results
152 papers in the same direction as this paper · 36 in the opposite direction · 6 reporting no difference from an alternative
- negative
- no effect
- negative
191 papers more in this group
See all 195 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.