Summary
Three indices of available P were evaluated with 20 mainly calcareous Lebanese soils using wheat (Triticum aestivum L.) and tomato (Lycopersicum esculentum L.) in the greenhouse. Both the NaHCO3-and anion exchange resin-extractable P were significantly correlated with P uptake. The relationship for NaOH−Na2C2O4 was not significant. Langmuir isotherm and actual sorption parameters were also poorly related to uptake. In general, soil properties were not significantly related to extractable P or crop uptake. Sequential inclusion of selected soil properties with test values only slightly improved the multiple correlation coefficients.
References
Al-Abbas, A. H. and Barber, S. A. 1964 Soil Sci. Soc. Am. Proc.28, 221–224.
Amer, F. et al. 1955 Plant and Soil6, 391–408.
Bowman, R. A. and Olsen, S. R. 1979 Soil Sci. Soc. Am. J.43, 121–124.
Drouineau, G. 1942 Ann. Agron.12, 411–450.
Fuehring, H. D. and Abi-Antun, M. D. 1968 Pub. No.33, Am. Univ. Beirut, Beirut, Lebanon.
Harter, R. D. and Baker, D. E. 1977 Soil Sci. Soc. Am. J.41, 1077–1080.
Holford, I. C. R. and Mattingly, G. E. G. 1976 Plant and Soil44, 377–389.
Jackson, M. L. 1965In Methods of Soil Analysis. Part 2, Agron.9. Ed. C. A. Black et al. Am. Soc. Agron. Madison, Wisc. pp 578–603.
Matar, A. E. and Samman, M. 1975 Agron. J.67, 616–618.
Landa, E. R. and Gast, R. G. 1973 Clays Clay Miner.21, 121–130.
Olsen, S. R.et al. 1954 USDA Circ.939.
Olsen, S. R. and Watanabe, F. S. 1957 Soil Sci. Soc. Am. Proc.21, 144–149.
Randall, G. W. et al. 1976 Soil Sci. Soc. Am. J.41, 282–286.
Sibbesen, E. 1978 Plant and Soil50, 305–321.
Watanabe, F. S. and Olsen, S. R. 1965 Soil Sci. Soc. Am. Proc.29, 677–678.
Woodruff, J. R. and Kamprath, E. J. 1965 Soil Sci. Soc. Am. J.28, 148–150.
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Contribution from the Department of Soils, Irrigation and Mechanization, American University of Beirut, Beirut, Lebanon. Journal No. 523B. Sci. Paper Series No.297.
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Ryan, J., Ayubi, A.G. Phosphorus availability indices in calcareous lebanese soils. Plant Soil 62, 141–145 (1981). https://doi.org/10.1007/BF02205034
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DOI: https://doi.org/10.1007/BF02205034