CERZOS   05458
CENTRO DE RECURSOS NATURALES RENOVABLES DE LA ZONA SEMIARIDA
Unidad Ejecutora - UE
artículos
Título:
Phosphate-solubilization activity of bacterial strains in soil and their effect on soybean growth Ander greenhouse conditions
Autor/es:
6. FERNÁNDEZ LA, ZALBA P, GÓMEZ MA Y SAGARDOY MA
Revista:
BIOLOGY AND FERTILITY OF SOILS
Editorial:
Springer
Referencias:
Lugar: Springer Berlin; Año: 2007 vol. 43 p. 805 - 809
ISSN:
0178-2762
Resumen:
Abstract The efficiency of 13 phosphate-solubilizing
bacteria (PSB; four Burkholderia sp., five EnterobacterThe efficiency of 13 phosphate-solubilizing
bacteria (PSB; four Burkholderia sp., five EnterobacterBurkholderia sp., five Enterobacter
sp., and four Bradyrhizobium sp.) was assessed in a soil
plate assay by evaluating soil phosphorus (P) availability. A
commercial argentine strain, Pseudomonas fluorescens, was
used for comparing solubilizing activity. Burkholderia sp.
PER2F, Enterobacter sp. PER3G, and Bradyrhizobium sp.
PER2H strains solubilized the largest quantities of P in the
soil plate assay after 60 days as compared with the other
strains, including the commercial one. The effect of PSB
inoculation on growth and nutrient uptake of soybean
plants was also studied under greenhouse conditions. Plants
inoculated with Burkholderia sp. PER2F had the highest
aerial height and showed an appropriate N/P ratio.
However, none of the PSB increased P uptake by plants.
This suggests that PSB inoculation does not necessarily
improve P nutrition in soybean, nor was there any
relationship between P availability in the soil plate assay
and P content in the soybean shoot in the greenhouse. We
concluded that the selection of efficient PSB strains as
possible inoculation tools for P-deficient soils should focus
on the integral interpretation of soil assays, greenhouse
experiments, and field trialsBradyrhizobium sp.) was assessed in a soil
plate assay by evaluating soil phosphorus (P) availability. A
commercial argentine strain, Pseudomonas fluorescens, was
used for comparing solubilizing activity. Burkholderia sp.
PER2F, Enterobacter sp. PER3G, and Bradyrhizobium sp.
PER2H strains solubilized the largest quantities of P in the
soil plate assay after 60 days as compared with the other
strains, including the commercial one. The effect of PSB
inoculation on growth and nutrient uptake of soybean
plants was also studied under greenhouse conditions. Plants
inoculated with Burkholderia sp. PER2F had the highest
aerial height and showed an appropriate N/P ratio.
However, none of the PSB increased P uptake by plants.
This suggests that PSB inoculation does not necessarily
improve P nutrition in soybean, nor was there any
relationship between P availability in the soil plate assay
and P content in the soybean shoot in the greenhouse. We
concluded that the selection of efficient PSB strains as
possible inoculation tools for P-deficient soils should focus
on the integral interpretation of soil assays, greenhouse
experiments, and field trialsPseudomonas fluorescens, was
used for comparing solubilizing activity. Burkholderia sp.
PER2F, Enterobacter sp. PER3G, and Bradyrhizobium sp.
PER2H strains solubilized the largest quantities of P in the
soil plate assay after 60 days as compared with the other
strains, including the commercial one. The effect of PSB
inoculation on growth and nutrient uptake of soybean
plants was also studied under greenhouse conditions. Plants
inoculated with Burkholderia sp. PER2F had the highest
aerial height and showed an appropriate N/P ratio.
However, none of the PSB increased P uptake by plants.
This suggests that PSB inoculation does not necessarily
improve P nutrition in soybean, nor was there any
relationship between P availability in the soil plate assay
and P content in the soybean shoot in the greenhouse. We
concluded that the selection of efficient PSB strains as
possible inoculation tools for P-deficient soils should focus
on the integral interpretation of soil assays, greenhouse
experiments, and field trialsBurkholderia sp.
PER2F, Enterobacter sp. PER3G, and Bradyrhizobium sp.
PER2H strains solubilized the largest quantities of P in the
soil plate assay after 60 days as compared with the other
strains, including the commercial one. The effect of PSB
inoculation on growth and nutrient uptake of soybean
plants was also studied under greenhouse conditions. Plants
inoculated with Burkholderia sp. PER2F had the highest
aerial height and showed an appropriate N/P ratio.
However, none of the PSB increased P uptake by plants.
This suggests that PSB inoculation does not necessarily
improve P nutrition in soybean, nor was there any
relationship between P availability in the soil plate assay
and P content in the soybean shoot in the greenhouse. We
concluded that the selection of efficient PSB strains as
possible inoculation tools for P-deficient soils should focus
on the integral interpretation of soil assays, greenhouse
experiments, and field trialsEnterobacter sp. PER3G, and Bradyrhizobium sp.
PER2H strains solubilized the largest quantities of P in the
soil plate assay after 60 days as compared with the other
strains, including the commercial one. The effect of PSB
inoculation on growth and nutrient uptake of soybean
plants was also studied under greenhouse conditions. Plants
inoculated with Burkholderia sp. PER2F had the highest
aerial height and showed an appropriate N/P ratio.
However, none of the PSB increased P uptake by plants.
This suggests that PSB inoculation does not necessarily
improve P nutrition in soybean, nor was there any
relationship between P availability in the soil plate assay
and P content in the soybean shoot in the greenhouse. We
concluded that the selection of efficient PSB strains as
possible inoculation tools for P-deficient soils should focus
on the integral interpretation of soil assays, greenhouse
experiments, and field trialsBurkholderia sp. PER2F had the highest
aerial height and showed an appropriate N/P ratio.
However, none of the PSB increased P uptake by plants.
This suggests that PSB inoculation does not necessarily
improve P nutrition in soybean, nor was there any
relationship between P availability in the soil plate assay
and P content in the soybean shoot in the greenhouse. We
concluded that the selection of efficient PSB strains as
possible inoculation tools for P-deficient soils should focus
on the integral interpretation of soil assays, greenhouse
experiments, and field trials