Abstract
Abstract Phosphate-solubilizing bacteria represent a bioalternative in making soil-immobilized phosphorus (P) available to plants, and consequently improve agriculture sustainability and reduce nutrient pollution. In this study, we examined whether Rhizobium sp. B02 inoculation can affect the soil P fractions. Moreover, we investigated how inoculation influences the growth, physiological traits, and productivity of the maize crop. Field tests were carried out to evaluate the combined application of strain B02 and reduced doses of P fertilizer. Soil P fractionation was performed after crop harvesting, assessing the P dynamics. To study the plant response, samplings were carried out in three phenological stages—the vegetative stage of the 7 fully emerged leaves with leaf collars (V7), the vegetative stage of the tassel (VT), and the reproductive stage of physiological maturity (R6). Using 50% of P fertilizer recommended, the strain inoculation increased the labile inorganic P fraction by 14% compared to the control treatment at the same dose, indicating that it favored the Pi mobility. Under these same conditions in the V7 and VT phenological stages, the inoculation significantly improved shoot length (28 and 3%) and shoot dry weight (9.8 and 12%). B02 inoculation increased grain yield by 696 kg ha −1 using 50% of the recommended rate of P fertilizer, phenocopying the complete P fertilization treatment without inoculation. Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize and increased the soil P availability.
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Claims 7
Claim · model-written summary
Rhizobium B02 inoculation with half-rate P fertilizer increased labile inorganic P by 14% over the same-rate control.
- Treatment
- strain inoculatione0
- Interactor
- Rhizobium sp. B02e1symbiont
- Outcome
- labile inorganic P fractione0
- Direction
- increasede0
- Value
- 14%e0
- Qualifier
- 50% of P fertilizer recommendede0
- Comparator
- control treatment at the same dosee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using 50% of P fertilizer recommended, the strain inoculation increased the labile inorganic P fraction by 14% compared to the control treatment at the same dose”
e1“Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize”
t0“maize”
Claim · model-written summary
B02 inoculation increased maize shoot length at V7 by 28%.
- Organ / stage
- V7e0
- Treatment
- inoculatione0
- Interactor
- Rhizobium sp. B02e1symbiont
- Outcome
- shoot lengthe0
- Direction
- improvede0
- Value
- 28e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under these same conditions in the V7 and VT phenological stages, the inoculation significantly improved shoot length (28 and 3%) and shoot dry weight (9.8 and 12%)”
e1“Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize”
t0“maize”
Claim · model-written summary
B02 inoculation increased maize shoot length at VT by 3%.
- Organ / stage
- VTe0
- Treatment
- inoculatione0
- Interactor
- Rhizobium sp. B02e1symbiont
- Outcome
- shoot lengthe0
- Direction
- improvede0
- Value
- 3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under these same conditions in the V7 and VT phenological stages, the inoculation significantly improved shoot length (28 and 3%) and shoot dry weight (9.8 and 12%)”
e1“Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize”
t0“maize”
Claim · model-written summary
B02 inoculation increased maize shoot dry weight at V7 by 9.8%.
- Organ / stage
- V7e0
- Treatment
- inoculatione0
- Interactor
- Rhizobium sp. B02e1symbiont
- Outcome
- shoot dry weighte0
- Direction
- improvede0
- Value
- 9.8e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under these same conditions in the V7 and VT phenological stages, the inoculation significantly improved shoot length (28 and 3%) and shoot dry weight (9.8 and 12%)”
e1“Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize”
t0“maize”
Claim · model-written summary
B02 inoculation increased maize shoot dry weight at VT by 12%.
- Organ / stage
- VTe0
- Treatment
- inoculatione0
- Interactor
- Rhizobium sp. B02e1symbiont
- Outcome
- shoot dry weighte0
- Direction
- improvede0
- Value
- 12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under these same conditions in the V7 and VT phenological stages, the inoculation significantly improved shoot length (28 and 3%) and shoot dry weight (9.8 and 12%)”
e1“Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize”
t0“maize”
Claim · model-written summary
B02 with half-rate P fertilizer increased maize grain yield by 696 kg ha −1.
- Treatment
- B02 inoculatione0
- Interactor
- Rhizobium sp. B02e1symbiont
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 696 kg ha −1e0
- Qualifier
- 50% of the recommended rate of P fertilizere0
- Comparator
- complete P fertilization treatment without inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B02 inoculation increased grain yield by 696 kg ha −1 using 50% of the recommended rate of P fertilizer, phenocopying the complete P fertilization treatment without inoculation”
e1“Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize”
t0“maize”
Claim · model-written summary
The authors conclude B02 inoculation can replace half of P fertilizer for maize and increase soil P availability.
- Treatment
- Rhizobium sp. B02 inoculatione0
- Interactor
- Rhizobium sp. B02e0symbiont
- Outcome
- soil P availabilitye0
- Direction
- increasede0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize and increased the soil P availability”
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See all 699 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.