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Effect of Rotational Pokkali cultivation and Shrimp farming on the Soil Characteristics of two different Pokkali field at Chellanam and Kadamakudi, Kochi, Kerala, INDIA

Author Affiliations

  • 1 Kerala University of Fisheries and Ocean Studies, Kochi 682506, Kerala, INDIA

Int. Res. J. Environment Sci., Volume 3, Issue (9), Pages 61-64, September,22 (2014)


Pokkali field is prevalent in the coastal saline tracts of Kerala. Pokkali fields are able to produce paddy and shrimp rotationally in an organic way. The sediment characteristics were studied in two Pokkali fields, Chellanam and Kadamakudi, Ernakulam District, Kerala, India during April to June 2013. The soil pH varied highly acidic to7.15 slightly alkaline in Chellanam and alkaline in Kadamakudi. The least value of conductivity and salinity were occurred on the first half of the June.The highest value of total organic carbon was 1.05%in Chellanam and 6.225% in Kadamakudi observed on the second half of April. The highest value of phosphate was 0.1578 mg/g in Chellanam and 0.2125 mg/g in Kadamakudi with a mean and standard deviation of 6.87 7.67 and 0.14 0.05 respectively on the first half of the May. The nitrogen content of the soil also showed the same trend as phosphate. The carbon content of the soil showed a slight increasing trend. The sulphur content of the soil is negligible except last half of may showed 0.18% . In Chellanam and Kadamakudi, the sulphur content of the soil showed a decreasing trend from April to June.C N ratio was in the range of 6.3: 1 to 8.1: 1. C- N ratio in Chellanam and in Kadamakudi was in the range of 9: 1 to 10.2: 1. The sediment characteristics in this area were completely depends on the south west monsoon and the tides of the Vembanad estuary.


  1. Priyadarsanan D.R., Seema P., Siddhartha K., Kiran M.C., Deepak D. and Jojo T.D., Strengthening Communities and Institutions for Sustainable Management of Vembanad Backwaters, Kerala, Proceedings of Taal2007: The 12th World Lake Conference, 11581163 (2008)
  2. Joy A., Development Impact on Pokkali Fields A Case of International Container Transshipment Terminal, Vallarpadam, Kochi, IOSR J.Hum. & Soc. Sci., 10(5), 15 (2013)
  3. Dominic V.J. and Jithin T., Effect of NaCl and Boron toxicity on proline biosynthesis of Oryza sativa (Pokkali VTL 4), Int. J. LifeSc. Bt & Pharm. Res., 1(3), 7383 (2012)
  4. Nambiar G.R. and Raveendran K., Exploration of Untapped Potentiality of Coastal Paddy Fields of Kerala(India) A Case Study, Mid. East J. Scien. Res., 4(1), 4447 (2009)
  5. Vanaja T. Kaipad A unique, naturally organic, saline prone rice ecosystem of Kerala, India, Am. J. Envi. Pro., 2(2), 4246 (2013)
  6. Pillai S.M., Krishnan L., Venugopal N. and Sasidharan C.S., Traditional system of brackishwater aquaculture of Kerala, CIBA Bulletin No. 14. (2002)
  7. Krishnani K.K., Rajendran K.V., Joseph K.O. and Gupta B.P. Soil and water characteristics of shrimp ponds affected with viral disease, J. Inland Fish. Soc. India, 29(1), 37-42 (1997)
  8. Gupta B.P., Krishnani K.K., Joseph K.O., Muralidhar M., Ali S.A. and Gopal C., Soil and water characteristics and the growth of shrimp Penaeus monodon fed with formulated feed in experimental tanks, Indian J. Fish., 48(4), 345-351 (2001)
  9. Sasidharan N.K., Abraham C.T. and Rajendran C.G., Spatial and temporal integration of rice, fish and prawn in the coastal wetlands of central Kerala, India, J. Trop. Agri.,50(1-2), 1523 (2012)
  10. Pillai S.M., Fishery and production of shrimps from perennial and seasonal fields of Kerala, Indian J. Fish., 50(2), 173180 (2003)
  11. Jayan P.R. and Sathyanathan N., Overview of farming practices in the water logged areas of Kerala, India, Int. J. Agri. & Bio. Eng., 3(4), 1-16 (2010)
  12. Jackson M.L., Soil Chemical Analysis, Indian Reprint. Prentice Hall of India Private Ltd., New Delhi, 498 (1958)
  13. Silas, E.G. and Pillai, P.P. Dynamics of zooplankton in a tropical estuary witha review on the plankton fauna of the environment, Bull.Dept.Mar.biol.Oceanogr.Univ.Cochin, 7, 329-335 (1975)
  14. Nandan S.B. and Abdul Aziz P.K., Organic matter of sediments from the retting an nonreuing areas of Kadinamkulam estuary, southwest coast of India, Indian J. Mar. Sci., 25, 25-28 (1996)
  15. Ramamirtham C.P., Muthuswamy S. and Khambadkar L.R. Estaurine oceanography of the Vembanad lake Part I: The region between Pallipuram (Vaikom) and Thevara (Cochin), Ind. J. Fish.,33(1), 218 -224 (1986)
  16. Post W.M., Emanuel W.R., Zinke P.J. and Stanenberger A.G., Soil carbon pools and world life zones, Nature,298, 156-159 (1982)
  17. Brady N.C. and R.R. Weil, The nature and properties of soils, 13th Ed. Prentice- Hall Inc., New Jersey, USA, 960 (2002)
  18. Mahal N., Soil and water analysis techniques for agricultural production. MSc Thesis. The graduate school of natural and applied sciences of middle east technical university, 24 (2010)