Effect of Certain Micronutrients on the Activity of Phosphate Dissolving Bacteria in a Calcareous Soil Cultivated with Faba Beans

In a pot experiment with Vicia faba grown in a calcareous soil and fertilized with three rates on superphosphate, inoculation with phosphate dissolving bacteria (PDB) increased P‐uptake and dry weight. The effect of inoculation exceeded that of the fertilization with half of the usual rate. Dry weight and P‐uptake of plants grown in inoculated soils receiving one half of the usual rate of superphosphate were higher than those for plants grown in pots receiving the usual rate of superphosphate in the absence of the inoculation. The usual rate of superphosphate in the presence of inoculation doubled both P‐uptake and dry weight of Vicia faba. However, one half of the usual rate of superphosphate in the presence of inoculation with PDB increased P‐uptake and dry weight of faba plants by one half more than the control.

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Influence of Phosphate Dissolving Bacteria on the Efficiency of Superphosphate in a Calcareous Soil Cultivated with Vicia faba

Khalafallah

Saber

Abd-El-Maksoud

1982

J Plant Nutrition & Soil

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Factors influencing dissolution of phosphate rock and oxidation of elemental sulphur in some New Zealand soils

Lee

Watkinson

Orbell

et al. 1987

New Zealand Journal of Agricultural Research

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Forty-eight Waikato soils representing six major New Zealand soil groups (yellow-brown earths, yellow-brown loams, yellow-brown pumice soils, brown-granular loams, gley, and organic soils) were incubated with Jordan phosphate rock (PR) with and without elemental sulphur (S) at 25°C for 10 weeks. S was determined by a recently developed high performance liquid chromatography procedure. Inorganic phosphorus (P) in bicarbonate extracts (Olsen Pi) increased significantly in PR and PR + S treatments, indicating that some Jordan PR was dissolved. The amount of organic P in bicarbonate extracts (Olsen Po) from the PR + S treatment was significantly larger than control and PR treatments. There was no significant increase in numbers of PR-dissolving bacteria in PR and PR + S treatments after 10 weeks' incubation. Soil pH and Olsen Pi were useful predictors of the relative dissolution of PR among the soil groups. S was oxidised in all soils. Among the soil groups from the S treatment, the gley soils were the least effective S oxidisers, oxidising 440/0

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Effect of Certain Micronutrients on the Activity of Phosphate Dissolving Bacteria in a Calcareous Soil Cultivated with Faba Beans

Cited by 2 publications

References 5 publications

Influence of Phosphate Dissolving Bacteria on the Efficiency of Superphosphate in a Calcareous Soil Cultivated with Vicia faba

Influence of Phosphate Dissolving Bacteria on the Efficiency of Superphosphate in a Calcareous Soil Cultivated with Vicia faba

Factors influencing dissolution of phosphate rock and oxidation of elemental sulphur in some New Zealand soils

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