Role of Gypsum and Corn Cobs in Linkage of Peds in Cracking Soils

  • Raid Shaalan Jarallah College of Agriculture , University of Al-Qadisiyah
  • S.K. Essa College of Agriculture , University of Baghdad

Abstract

To study role of gypsum and corn cobs in linkage of fractions in cracking soils. Three soils (Al-Diwaniya , Al-Wihda and college of Agriculture / Abu Ghraib) were chosen for this study . They were  treated with two levels of gypsum (0.5 and 1) % with one level (4%) of corncobs . In this experiment , 2 kg of each studied soil were treated with same levels of corn cobs and gypsum above and incubated at 30 + 2 °C for 90 days and 80% relative moisture content at 33 kpa. And then the soils were sieved with 1 mm sieve to measured the x-ray diffractions . The results showed : The intensity of clay minerals peaks which treated with gypsum and corn cobs were decreased comparing with control sample. We believed that the gypsum should be facculated on clay minerals surfaces and mask them to appear clearly , and suggested that the gypsum was played an important role in conjugated of soil particles. Results of X-ray diffractions showed that there was no evidence of interaction between organic matter (corn cobs) and clay mineral inter layers.

References

Adachi, K. ; Yoshida, S. ; Takaki, K. and Itok, K. 1998. Changes in macropore volume and under drain discharge in clayey multi-purpose paddy fields. Transactions of the Japanese-Soc. of Irrigation-Drainage and reclamation-Engineering. No.198. p. 169-174.
Chertkov, V.Y. and I. Ravina. 1999. Tortuosity of crack network in swelling clay soils. Soil Sci. Soc. Am. J. 63: 1523-1530.
Dasog, G.S. ; D.F. Acton ; A.R. Mermut ; and E. De.Jong. 1988. Shrink-swell potential and cracking in clay soils for Saskatchewan. Can. J. Soil. Sci. 68: 251-260.
Diamond, S. ; J.L. White and W.L. Dolch. 1964. Transformation of clay minerals by calcium hydroxide attack. Clay and clay miner. 359-378.
El-Abedine, Z. and G.H. Robinson. 1971. A study on cracking in some vertisols of Sudan. Geoderma. 5: 229-241.
FAO. 1995. prospects for the drainage of clay soils. FAO irrigation and drainage. Paper. 51. Rycroft, Amer.
Glenn, G.R. ; and R.L. Handy. 1963. Lime-clay mineral reaction products. Highway Res. Rec. 29: 240-249.
Laird, D.A. ; P.Y. Yen ; W.C. Koskinen ; T. Steinheimer ; and R.H. Dowdy. 1994. Sorption of atrazine on soil clay components. Environ. Sci. and Technol. 28(6): 1054-1061.
National Botanical Institue. SA. 2004. Soils Illustrated. Sono state evi denziate le seguenti parol echiave.
Pettry, D.E. and C.I. Rich. 1971. Modification of certain soils by calcium hydroxide stabilization. Soil Sci. Soc. America. Vol. 35: 834-838.
Robertson, L.S. ; A.E. Erickson and D.R. Christenson. 1976. Visual symptoms, causes and remedies of bad soil structure. Research report from Michigan university. Agricultural experiment station east Lansing. P: 1-7. Dept. of Crop. and soil Science.
Tarchitzky, J.;Y. Chen. 2002. Rheology of sodium montmorillonite suspensions. Soil Sci. Soc. Am. J. 66: 406-412.
Waller, P.M. and W.W. Wallender. 1993. Changes in cracking water content, and bulk density of salinized swelling clay field soils. Soil Sci. 156: 414-423.
White, E.M. 1970. Giant desiccation cracks in central south Dakota soils. Soil Sci. 110: 71-73.
White, E.M. 1972. Soil-desiccation features in south Dakota depressions. J. Geol. 80: 106-111.
White, E.M. 2001. Comments on using surface crack spacing to predict crack network geometry in swelling soils. Soil. Sci. Soc. Am. J. 65: 1573-1574.
Published
2017-06-21
How to Cite
SHAALAN JARALLAH, Raid; ESSA, S.K.. Role of Gypsum and Corn Cobs in Linkage of Peds in Cracking Soils. Al-Qadisiyah Journal For Agriculture Sciences, [S.l.], v. 7, n. 1, p. 120-127, june 2017. ISSN 2077-5822. Available at: <http://qu.edu.iq/journalagr/index.php/QJAS/article/view/18>. Date accessed: 11 dec. 2018.
Section
Articles