Use of Flyash and Biogas Slurry for Improving Wheat Yield and Physical Properties of Soil

  • R. N. Garg
  • H. Pathak
  • D. K. Das
  • R. K. Tomar


This study explores the potential use of by-products of energy production, i.e., (i) flyash from coal-powered electricity generation and (ii) biogas slurry from agricultural waste treatment, as nutrient sources in agriculture. These residues are available in large amounts and their disposal is a major concern for the environment. As both residues contain considerable amounts of plant nutrients, their use as soil amendment may offer a promising win-win opportunity to improve crop production and, at the same time, preventing adverse environmental impacts of waste disposal. Effect of flyash and biogas slurry on soil physical properties and growth and yield of wheat (Triticum aestivum) was studied in a field experiment. Leaf area index, root length density and grain yield of wheat were higher in plots amended with flyash or biogas slurry compared to unamended plots. Both types of amendments reduced bulk density, and increased saturated hydraulic conductivity and moisture retention capacity of soil. The study showed that flyash and biogas slurry should be used as soil amendments for obtaining short-term and long-term benefits in terms of production increments and soil amelioration.


biogas slurry bulk density flyash hydraulic conductivity moisture retention capacity wheat 



Cation Exchange Capacity


Critical Difference


Days After Sowing


Duncan’s Multiple Range Test


Leaf Area Index


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  1. Amer, A. A., Badawi, M. A. and Banna-El, A. A.: 1997, ‘Effect of organic manuring on wheat plants grown in sandy soil’, Ann. Agric. Sci. Cairo. 42(1), 107–116.Google Scholar
  2. Chatterjee, T., Mukhopadhyay, M., Gupta, M. D. and Gupta, S. K.: 1988, ‘Studies on some agrochemical properties of flyash’, Clay Res. 7(1, 2), 19–23.Google Scholar
  3. Cox, D., Bezdicek, D. and Fauci, M.: 2001, ‘Effects of compost, coal ash, and straw amendments on restoring the quality of eroded Palouse soil’, Biol. Fertil. Soils 33, 365–372.CrossRefGoogle Scholar
  4. Deshpande, V. P., Kale, C. K. and Badrinath, S. K.: 1993, ‘Environmental Impacts Due to Flyash From Coal Fired Thermal Power Plants’, Paper presented at National Seminar on Environmental Aspects of Thermal Power Plants organized by R & D Centre, NTPC, 9–10 December, Noida, U.P., India.Google Scholar
  5. Kalra, N., Chaudhary, A., Pathak, H., Joshi, H. C., Jain, M. C., Sharma, S. K. and Kumar, V.: 1998, ‘Flyash characteristics and its incorporation effects on soil health’, J. Environ. Sys. 26(4), 391–399.Google Scholar
  6. Newman, E. I.: 1966, ‘A method of estimating the total length of root in a sample’, J. Appl. Ecol. 3, 139–145.Google Scholar
  7. Page, A. L., Elseewi, A. A. and Straughan, I. R.: 1979, ‘Physical and chemical properties of flyash from coal fired power plants with reference to environmental impacts’, Residue Rev. 71, 83–120.Google Scholar
  8. Page, A. L., Miller, R. H. and Keeney, D. R. (1982) Methods of Soil Analysis. Part 1, Physical Properties, 2nd edn, Agronomy No. 9, ASA-SSSA, Madison, WI, U.S.A.Google Scholar
  9. Pathak, H., Kushwaha, J. S. and Jain, M. C.: 1992, ‘Evaluation of manurial value of biogas spent slurry composted with dry mango leaves, wheat straw and rock phosphate on wheat crop’, J. Indian Soc. Soil Sci. 40, 753–757.Google Scholar
  10. Prasad, R. and Power, J. F.: 1991, ‘Crop residue management’, Adv. Soil Sci. 15, 205–251.Google Scholar
  11. Rajput, R. P. and Sastry, P. S. N.: 1984, ‘Effect of soil amendments on physico-chemical properties of sandy loam soil – I. Chemical properties’, Indian J. Agril. Res. 18(4), 201–205.Google Scholar
  12. Rajput, R. P. and Sastry, P. S. N.: 1987, ‘Effect of soil amendments on physico-chemical properties of sandy loam soil – II Structural and hydrophysical properties’, Indian J. Agril. Res. 21(3), 145–150.Google Scholar
  13. Raman, S., Patel, A. M., Shaha, G. B. and Kaswala, S. S.: 1996, ‘Feasibility of some industrial wastes for soil improvement and crop production’, J. Indian Soc. Soil Sci. 44(1), 147–150.Google Scholar
  14. Sale, L. Y., Chanasyk, D. S. and Naeth, M. A.: 1997, ‘Temporal influence of flyash on select soil physical properties’ Can. J. Soil Sci. 77(4), 677–683.Google Scholar
  15. Shakweer-EL, M. H. A., Sayad-El, E. A. and Ewees, M. S. A.: 1998, ‘Soil and Plant Analysis as a Guide for Interpretation of the Improvement Efficiency of Organic Conditioners Added to Different Soils of Egypt’, International Soil and Plant Analysis Symposium, 2–7 August, Minneapolis, U.S.A.Google Scholar
  16. Shinde, B. N., Kochan, S. M. and Patil, A. S.: 1995, ‘Use of flyash for improving physical properties of black soil’, J. Maharashtra Agric. Univer. 20(2), 167–169.Google Scholar
  17. Singh, D. and Kansal, B. D.: 1994, ‘Changes in Physico-Chemical Properties of Soil on Addition of Flyash’, Extended Summaries, National Seminar on Development in Soil Science Organized by Indian Society of Soil Science, Nov. 28–Dec. 1, New Delhi, pp. 202–203.Google Scholar
  18. Singh, N. B. and Singh, M.: 1986, ‘Effect of flyash application on saline soil and on yield components, yield and uptake of NPK of rice and wheat at varying fertility levels’, Ann. Agric. Res. 7(2), 245–257.Google Scholar
  19. Smith, J. L. and Elliot, L. F.: 1990, ‘Tillage and residue management effects on organic matter dynamics in semi-arid regions’, Adv. Soil Sci. 13, 69–88.Google Scholar

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • R. N. Garg
    • 1
  • H. Pathak
    • 2
    • 3
  • D. K. Das
    • 1
  • R. K. Tomar
    • 1
  1. 1.Division of Agricultural PhysicsIndian Agricultural Research InstituteNew DelhiIndia
  2. 2.Unit of Simulation and InformaticsIndian Agricultural Research InstituteNew DelhiIndia
  3. 3.Research Fellow of the Alexander von Humboldt Foundation, Forschungszentrum Karlsruhe,Institut fur Meteorology und KlimaforschungGarmischPartenkirchenGermany

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