Abstract
In pot experiments the relationships between rhizosphere pH, the extractable levels of Fe, Mn and Zn in the soil and their uptake into the roots and shoots of dwarf French beans have been studied. Variations in rhizosphere pH were induced by applying three different sources of nitrogencholine phosphate, ammonium phosphate and calcium nitrate-to an initially homogenised soil (preadjusted to either pH 7 or 8). The rhizosphere pH was found to be significantly lower following the application of either ammonium or choline phosphates and to be increased by calcium nitrate treatment.
The Fe and Zn contents of both shoot and root were inversely proportional to rhizosphere pH. The Mn contents also increased with decreasing pH but a sharp increase was apparent below pH 5.5. The shoot Fe, Zn and Mn content were significantly correlated with the extractable levels determined in the rhizosphere and non-rhizosphere soil.
Similar content being viewed by others
References
Böhn H L 1970 Comparison of measured and theoretical Mn2+ concentration in soil suspension. Soil Sci. Soc. Am. Proc. 34, 195–197.
Elgawhary S M, Lindsay W L, Kemper W D 1970 Effect of complexing agents and acids on the diffusion of zinc to a stimulated root. Soil Sci. Soc. Am. Proc. 34, 211–214.
Geering H R, Hodgson J F and Sdano C 1969 Micronutrient cation complexes in soil solution IV. The chemical state of manganese in soil solution. Soil Sci. Soc. Am. Proc. 33, 81–85.
Hodgson J F, Geering H R and Norvell W A 1965 Micronutrient cation complexes in soil solutions. Partition between complexed and uncomplexed forms big solvent extraction. Soil Sci. Soc. Am. Proc. 29, 665–669.
Krauskopf K B 1967In Introduction to Geochemistry. Mc. Graw Hill Book Co.
Lindsay N K 1971In Plant root and its environment. Ed. E W Carson Univ. Press, North Carolina, Charls.
Loneragan J F 1975In Trace elements in soil-plant-animal system Ed. D J D Nicholas and A R Egan. pp 109–134.
Lutz J A J, Genter C F and Hawkins G W 1972 Effect of soil pH on element concentration and uptake by maize. II Cu, B, Zn, Mn, Mo, Al and Fe. Agron. J. 64, 583–585.
Mason S 1958In Principles of Geochemistry. John Willey & Sons.
Mehra O P and Jackson M L 1960 Iron oxide removal from soil and clays by a dithionatecitrate system with sodium-bicarbonate buffers. Clay Clay Miner. 5, 317–327.
Mukhopadhay A, Fisher T R and Smith G J 1967 Submergence and limiting effects on soil changes in pH, Eh, and manganese uptake by rice plants. Soil Sci. 104, 107–112.
Olomu M O, Raca G J and Cho C M 1973 Effect of flooding on the Eh, pH and concentration of Fe and Mn in several Manitoba soils. Soil Sci. Soc. Am. Proc. 37, 220–224.
Patrick W H Jr and Dalaune R D 1972 Characterization of oxidized and reduced zones in flooded soil. Soil Sci. Soc. Am. Proc. 36, 573–576.
Riley D and Barber S A 1971 Effect of ammonium and nitrate fertilization on phosphorus uptake as related to root-induced pH changes at the root-soil interface. Soil Sci. Soc. Am. Proc. 33, 905–908.
Sarkar A N and Wyn Jones R G 1982 Influence of rhizosphere on the nutrient status of dwarf French beans. Plant and Soil 64, 362–380.
Author information
Authors and Affiliations
Additional information
This paper forms part of the Ph. D. thesis submitted by A.N.S. to the University of Wales in 1977.
Rights and permissions
About this article
Cite this article
Sarkar, A.N., Wynjones, R.G. Effect of rhizosphere pH on the availability and uptake of Fe, Mn and Zn. Plant Soil 66, 361–372 (1982). https://doi.org/10.1007/BF02183802
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02183802