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Agronomy for Sustainable Development

, Volume 29, Issue 2, pp 257–265 | Cite as

A 25-year record of carbon sequestration and soil properties in intensive agriculture

  • D. K. BenbiEmail author
  • J. S. Brar
Research Article

Abstract

As a major carbon pool on earth, soil organic carbon may act either as a sink or a source of atmospheric CO2, a greenhouse gas. Soil organic carbon is also impacting fertility, and, in turn, crop yields. However, knowledge of the impact of cropping techniques on the long-term behavior of soil carbon is scarce. Several studies have shown that continuous cropping decreases soil organic carbon stocks, rapidly in the initial years then at a slower rate, approaching a new equilibrium after 30 to 50 years. For instance, a study of intensive corn cropping for 35 years on temperate soils showed a 50% decrease in soil organic carbon. Our study is located in the North Indian state of Punjab. It is the most intensively cultivated region in the country with a cropping intensity of 190%, predominantly of a rice-wheat system. Due to high nutrient demand and its continuous cultivation, the cropping system is presumed to adversely affect soil organic carbon and other soil properties. However, this has been postulated without any real-time data analysis on a regional scale. Therefore, we evaluated soil data for 25 years from 1981/82 to 2005/06 to investigate the impact of intensive agriculture on C sequestration and soil properties on a regional scale. The results showed that, unexpectedly, intensive agriculture has resulted in improved soil organic carbon (SOC) status. As a weighted average for the whole state, SOC increased from 2.9 g kg−1 in 1981/82 to 4.0 g kg−1 in 2005/06, an increase of 38%. Increased productivity of rice and wheat resulted in enhanced C sequestration in the plough layer by 0.8 tC ha−1 per ton of increased grain production. Soil pH declined by 0.8 pH units from 8.5 in 1981/82 to 7.7 in 2005/06. This pH decline has positive implications for availability of phosphorus and micronutrients such as Zn, Fe and Mn. Changes in plant-available P in soil were related to the amount of fertilizer P applied. The status of available P in soils increased from 19.9 kg ha−1 in 1981/82 to 29.2 kg P ha−1 during 2005/06. The status of plant-available K in soil remained almost unaltered and averaged 106 and 123 mg kg−1 soil in 1981/82 and 2005/06, respectively. The analysis showed that intensive cultivation of a rice-wheat system unexpectedly resulted in improved C sequestration, a favorable pH environment and amelioration of the soil salinity.

carbon sequestration soil quality soil pH available nutrient status intensive agriculture rice-wheat sustainability yield 

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References

  1. Abrol I.P., Bronson K.F., Duxbury J.M., Gupta R.K. (2000) Long-term soil fertility experiments in rice-wheat cropping systems, Rice-Wheat Consortium paper series 6, New Delhi, p. 171.Google Scholar
  2. Arrouays D., Balesdent J., Mariotti A., Girardin C. (1995) Modelling organic carbon turnover in cleared temperate forest soils converted to maize cropping by using 13C natural abundance measurements, Plant Soil 173, 191–196.CrossRefGoogle Scholar
  3. Arrouays D., Pelissier P. (1994) Changes in carbon storage in temperate humic loamy soils after forest clearing and continuous corn cropping in France, Plant Soil 160, 215–223.CrossRefGoogle Scholar
  4. Balesdent J., Wagner G.H., Mariotti A. (1988) Soil organic matter turnover in long term field experiments as revealed by carbon-13 natural abundance, Soil Sci. Soc. Am. J. 52, 118–124.CrossRefGoogle Scholar
  5. Benbi D.K., Biswas C.R. (1999) Nutrient budgeting for phosphorus and potassium in a long-term fertilizer trial, Nutr. Cycl. Agroecosys. 54, 125–132.CrossRefGoogle Scholar
  6. Benbi D.K, Nayyar V.K., Brar J.S. (2006) Green revolution in Punjab: the impact on soil health, Indian J. Fertil. 2, 57–66.Google Scholar
  7. Beri V., Sidhu B.S., Gupta A.P., Tiwari R.C., Pareek R.P., Rupela O.P., Khera R., Singh J. (2003) Organic resources of a part of Indo-Gangetic Plain and their utilization, Department of Soils, PAU, Ludhiana, India, p. 93.Google Scholar
  8. Bernoux M., Cerri C.C., Cerri C.E.P., Neto M.S., Metay A., Perrin A.S., Scopel E., Razafimbelo T., Blavet D., Piccolo M. de C., Paveli M., Milne E. (2006) Cropping systems, carbon sequestration and erosion in Brazil, a review, Agron. Sustain. Dev. 26, 1–8.CrossRefGoogle Scholar
  9. Bhandari A.L., Ladha J.K., Pathak H., Padre A.T., Dawe D., Gupta R.K. (2002) Yield and soil nutrient changes in a long-term rice-wheat rotation in India, Soil Sci. Soc. Am. J. 66, 162–170.CrossRefGoogle Scholar
  10. Biswas C.R., Benbi D.K. (1997) Sustainable yield trends of irrigated maize and wheat in a long-term experiment on loamy sand in semi-arid India, Nutr. Cycl. Agroecosys. 46, 225–234.CrossRefGoogle Scholar
  11. Brar J.S., Chhibba I.M. (1997) Potassium status and quality of underground waters of Punjab, Indian J. Ecol. 24, 165–171.Google Scholar
  12. Brar M.S., Mukhopadhyay S.S., Dhillon N.S., Sharma P., Singh A. (2008) Potassium: Mineralogy and status in soils, and crop response in Punjab, India. International Potash Institute, Horgen, Switzerland, p. 69.Google Scholar
  13. Bronson K.F., Cassman K.G., Wassman R., Olk D.C., Noordwijk M., van Garrity D.P. (1998) Soil carbon dynamics in different cropping systems in principal eco-regions of Asia, in: Lal R., Kimble J.M., Follett R.F., Stewart B.A. (Eds.), Management of Carbon Sequestration in Soil, CRC, Boca Raton, NY, pp. 35–57.Google Scholar
  14. Brown S., Lugo A.E. (1990) Effects of forest clearing and succession on the carbon and nitrogen content of soils in Puerto Rico and US Virgin Islands, Plant Soil 124, 53–64.CrossRefGoogle Scholar
  15. Duxbury J.M. (2001) Long-term yield trends in the rice-wheat cropping system: results from experiments and northwest India, J. Crop Prod. 3, 27–52.CrossRefGoogle Scholar
  16. Evans L.T. (1993) Crop Evolution, Adaptation and Yield, Cambridge University Press, Cambridge, 500 p.Google Scholar
  17. Fanning D.S., Keramides V.Z., El-Desoky M.A. (1989) Micas, in: Dixon J.B., Weed S.B. (Eds.), Minerals in Soil Environment, Soil Science Society of America, Madison, pp. 551–634.Google Scholar
  18. Gajri P.R., Prihar S.S. (1985) Rooting, water use and yield relations in wheat on loamy sand and sandy loam soils, Field Crop. Res. 12, 115–132.CrossRefGoogle Scholar
  19. Gomez K.A., Gomez A.A. (1976) Statistical Procedures for Agricultural Research. IRRI, Los Banos, Manila.Google Scholar
  20. Gupta R.K., Abrol I.P. (1990) Salt affected soils: their reclamation and management for crop production, Adv. Soil Sci. 11, 223–288.Google Scholar
  21. Houghton R.A., Skole D.L. (1990) Carbon. in: Turner B.L., Clark W.C., Kates R.W., Richards J.F., Matthews J.T., Meyer W.B. (Eds.), The Earth as Transformed by Human Action, Cambridge University Press, Cambridge, UK, pp. 393–408.Google Scholar
  22. Jenkinson D.S. (1988) Soil organic matter and its decomposition, in: Wild A. (Ed.), Russel’s Soil Conditions and Plant Growth, 11th ed., Longman, London, pp. 464–506.Google Scholar
  23. Kukal S.S., Rehana-Rasool, Benbi D.K. (2008a) Soil organic carbon sequestration in relation to organic and inorganic fertilization in rice-wheat and maize-wheat systems, Soil Till Res., doi:10.1016/j.still.2008.07.017.Google Scholar
  24. Kukal S.S., Singh Y., Yadav S., Humphreys E., Kaur A., Thaman S. (2008b) Why grain yield of transplanted rice on permanent raised beds declines with time? Soil Till Res., doi:10.1016/j.still.2008.03.005.Google Scholar
  25. Kuzyakov Y., Domanski G. (2000) Carbon input by plants into the soil. Review, J. Plant Nutr. Soil Sci. 163, 421–431.CrossRefGoogle Scholar
  26. Ladha J.K., Fischer K.S., Hossain M., Hobbs P.R., Hardy B. (Eds.) (2000) Improving the productivity and sustainability of rice-wheat systems of the Indo-Gangetic Plains: a synthesis of NARS-IRRI partnership research. IRRI Discussion paper No. 40, 31 p.Google Scholar
  27. Ladha J.K., Dawe D., Pathak H., Padre A.T., Yadav R.L. et al. (2003) How extensive are yield declines in long-term rice-wheat experiments in Asia? Field Crop. Res. 81, 159–180.CrossRefGoogle Scholar
  28. Lugo A.E., Brown S. (1993) Management of tropical soils as sinks or sources of atmospheric carbon, Plant Soil 149, 27–41.CrossRefGoogle Scholar
  29. Majumder B., Mandal B., Bandyopadhyay P.K., Chaudhury J. (2007) Soil organic carbon pools and productivity relationships for a 34 year old rice-wheat-jute agroecosystem under different fertilizer treatments, Plant Soil 297, 53–67.CrossRefGoogle Scholar
  30. Mann L.K. (1986) Changes in soil carbon storage after cultivation, Soil Sci. 142, 279–288.CrossRefGoogle Scholar
  31. Mavi M.S., Benbi D.K. (2007) Potassium dynamics under integrated nutrient management in rice-wheat system, Agrochimica LII (2) 83–91.Google Scholar
  32. Merwin H.D., Peech M. (1950) Exchangeability of soil potassium in the sand, silt and clay fractions as influenced by the nature of the complimentary exchangeable cations, Soil Sci. Soc. Am. Proc. 15, 125–128.CrossRefGoogle Scholar
  33. Muhr G.R., Datta N.P., Sankarasubramoney H., Laley V.K., Donahue R.L. (1965) Critical soil test values for available N, P and K in different soils, in: Soil Testing in India, 2nd ed., USAID Mission to India, New Delhi, pp. 52–56.Google Scholar
  34. Nieder R., Benbi D.K. (2008) Carbon and Nitrogen in the Terrestrial Environment. Springer Science + Business Media B.V., p. 430.Google Scholar
  35. Olsen S.R., Cole C.V., Watanabe F.S., Dean L.A. (1954) Estimation of available phosphorus in soils by extraction with sodium bicarbonate, USDA Circ. No. 939.Google Scholar
  36. Paustian K., Cole C.V., Sauerbeck D.R., Sampson N. (1998) CO2 mitigation by agriculture: an overview, Climatic Change 40, 135–162.CrossRefGoogle Scholar
  37. Ponnamperuma F.N. (1972) The chemistry of submerged soils, Adv. Agron. 24, 29–96.CrossRefGoogle Scholar
  38. Regmi A.P., Ladha J.K., Pathak H., Pasquin E., Bueno C., Dawe D., Hobbs P.R., Joshy D., Maskey S.L., Pandey S.P. (2002) Yield and soil fertility trends in 20-year rice-rice-wheat experiments in Nepal, Soil Sci. Soc. Am. J. 66, 857–867.CrossRefGoogle Scholar
  39. Rekhi R.S., Benbi D.K., Singh B. (2000) Effect of fertilizers and organic manures on crop yields and soil properties in rice-wheat cropping system, in: Abrol I.P. et al. (Eds.), Long-term Soil Fertility Experiments in Rice-Wheat Cropping Systems. Rice-Wheat Consortium Paper Series 6, New Delhi, India; Rice-Wheat Consortium for the Indo-Gangetic Plains, pp. 1–6.Google Scholar
  40. Sahrawat K.L. (2004) Organic matter accumulation in submerged soils, Adv. Agron. 81, 169–201.CrossRefGoogle Scholar
  41. Singh Y., Dobermann A., Singh B., Bronson K.F., Khind C.S. (2000) Optimal phosphorus management strategies for wheat-rice cropping on a loamy sand, Soil Sci. Soc. Am. J. 64, 1413–1422.Google Scholar
  42. Walkley A., Black I.A. (1934) An examination of the degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method, Soil Sci. 37, 29–38.CrossRefGoogle Scholar
  43. Watanabe I. (1984) Anaerobic decomposition of organic matter, in: Organic Matter and Rice. International Rice Research Institute, Manila, Philippines, pp. 237–258.Google Scholar

Copyright information

© Springer S+B Media B.V. 2009

Authors and Affiliations

  1. 1.Department of SoilsPunjab Agricultural UniversityLudhianaIndia

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