TOPRAKLARDA BOR ADSORPSİYONU

Year 1996, Volume: 02 Issue: 01, - , 01.01.1996

Sonay Sözüdoğru Satea M. Omar Sadık Usta

https://doi.org/10.1501/Tarimbil_0000000609

Abstract

Bu araştırma farklı özelliklere sahip topraklar ın bor adsorpsiyon izotermlerini incelemek üzere yürütülmüştür. Langmuir ve Freundlich adsorpsiyon izotermi modellerine göre değerlendirilen B adsorpsiyonunda, Langmuir modelinin düşük B konsantrasyonlan için geçerli oldu ğu, Freundlich modelinin ise hem düşük, hem de yüksek konsantrasyonlarda geçerli oldu ğu saptanmıştır. Langmuir b ve Freundlich k sabitleri ile kil kapsam ı ve kalyon değişim kapasitesi aras ında sırasıyla; % 1 ve % 5 düzeyinde önemli bir ili şki bulunmuştur. Langmuir K sabiti ile organik madde aras ında % 1 düzeyinde önemli bir ilişki tespit edilmiştir. Langmuir b ve Freundlich k de ğerleri ile pH arasında % 1, Langmuir K değeri ile ise % 5 düzeyinde negatif bir ilişki olduğu belirlenmiştir.

Keywords

Bor, Langmuir adsorpsiyon izotermi, Freundlich adsorpsiyon izotermi.

BORON ADSORPTION IN SOILS

Abstract

The objective of this study was to investigate the effect of soil properties on Boron adsorption. Boron sorption in soils confirmed to Langmuir adsorption isotherm, but only over limited concentration ranges. On the other hand, the Ferundlich adsorption isotherm was applicable over the entire B concentration range for all soils. The Langmuir b and Freundlich k values were highly correlated with both clay content significant at 1 % level , pH significant at 1 % level but negative and cation exchange capacity significant at 5 % level . Langmuir K values were significantly correlated with organic matter at 1 % level and pH at 5 % level and negative.

Keywords

Boron, Langmuir adsorption isotherm, Freundlich adsorption isotherm.

References

• Abbas, F.M., 1984. A simplified model for salt and boron transport in soils. ph. D. Thesis. Utah state University, Legan.
• Berger, K.C., 1949. Boron in soils and crops. Adv.Agron 1:321-351
• Bhatnagar, R.S., S.C. Attri., G.S. Mathar, and R.S. Chaudhary, 1979. Boron adsorption equilibrium in soils. Ann. Arid Zone 18:86-95.
• Bouyoucos, G.J., 1951. A recalibration of the hydrometer for making mechanical analysis of soils. Agronomy J. 43:434-438.
• Çağlar, K.Ö., 1949. Toprak Bilgisi. A.Ü Yayınları No:10 Ankara
• Elrashidi, M.A., and G.A. O'connor, 1982. Boron sorption and desorption in soils. Soil Sci. Soc. Am. J. 46:27-31.
• Fleet, M.E.L., 1965. Preliminary investigations in to the sorption of boron by clay mineral. Clay Miner. 6:3-16.
• Goldberg, S., H.S. Forstar, and E.L. Heick, 1993. Boron Adsorption mechanisms on oxides, clay minerals, and soil inferred from ionic strength effects. Soil Sci. Soc. Am. J., 57:704- 708.
• Goldberg, S., and R.A. Glaubing, 1985. Boron adsorption on alimunim and iron oxide minerals. Soil Sci. Soc. Am. J. 49:1374-1379.
• Griffin, R.A., and R.G. 'Buran, 1974. Kinetic and equilibrium studies of boron desorption from. Soil Sci. Soc. Anı. Proc. 38:892-897.
• Hatcher, J.T., and L.V. Wilcox, 1950. Colorimetric determination of boron using carmin. Anal. Chem. 22:567-569.
• Hatcher, J.T., and C.A. Bower, 1958. Equilibria and dynamics of boron adsorption by soils. Soil Sci. 85:319-323.
• Hingston, F.J., 1964. Reactions between boron ad clays. Aust. J. Soil Res 2:83-95.
• Jackson, M.L., 1962. Soil Chemical Analysis PrenticeHall. Inc. Eng. Cliffs. N.J. USA. Keren, R., and F.T. Bingham, 1985. Boron in Water, soil and plants. Adv. Soil Sci. 1:229-276.
• Marzadori,C., L. Vittori Antisari, C. Ciavatta, and P. Segui, 1991. Soil Organic matter influnce on adsorption and desorption of boron. Soil Sci. Soc. Anı. J. 55:1582-1585.
• Rhoades, J.D. Ingvalson, and J.T. Hacher, 1970. Laboratory determination of leachable soil boron. Soil Sci. Soc. Anı. Proc. 34:871-875.
• Richards, L.A. 1954 ed. Diagnosis and Improvement of Sahne and Alkali Solils. USDA Agriculture Handbook No:60
• Singh, M., 1971. Equilibrium adsorption of boron in soils and clays. Geoderma 5:209-217.