Depletion of Soil Potassium under Exhaustive Cropping in Inceptisol and Alfisol

References

• Abdel-Hamid , M. A. 1992 . Effect of moisture conditions and potassium application levels on quantity–intensity relationships under continuous cropping with alfalfa . Bulletin of the Faculty of Agriculture, University of Cairo , 43 : 453 – 475 .
   Google Scholar
• Ali , S. K. 2005 . Fertilizer recommendation for principal crops and cropping sequences of West Bengal , West Bengal , India : Department of Agriculture, Government of West Bengal .
   Google Scholar
• Amacher , M. C. 1984 . Determination of ionic activities in soil solutions and suspension: Principal limitations . Soil Science Society of America Proceedings , 48 : 519 – 524 .
   Web of Science ®Google Scholar
• Beckett , P. H. T. 1964a . Studies on soil potassium, I: Confirmation of the ratio law: Measurement of potassium potential . Journal of Soil Science , 15 : 1 – 8 .
   Google Scholar
• Beckett , P. H. T. 1964b . Studies on soil potassium, II: The “immediate” Q/I relations of labile potassium in the soil . Journal of Soil Science , 15 : 9 – 23 .
   Google Scholar
• Beckett , P. H. T. and Nafady , M. H. M. 1967a . Studies on soil potassium, VI: The effect of K-fixation and release on the form of the K : (Ca + Mg) exchange isotherm . Journal of Soil Science , 18 : 244 – 262 .
   Google Scholar
• Beckett , P. H. T. and Nafady , M. H. M. 1967b . Potassium–calcium exchange equilibria in soils: The location of non-specific exchange sites . Journal of Soil Science , 18 : 263 – 283 .
   Google Scholar
• Beckett , P. H. T. 1971 . Potassium potential: A review . Potash Review , 5 : 1 – 41 .
   Google Scholar
• Bouyoucos , G. J. 1962 . Hydrometer method improved for making particle size analyses of soils . Journal of Agronomy , 54 : 464 – 465 .
   Web of Science ®Google Scholar
• Brady , N. C. 1990 . The nature and properties of soils , 10th , New York : Macmillan .
   Google Scholar
• Brar , M. S. and Sekhon , G. S. 1977 . Evaluation of some methods of potassium availability in Punjab soils . Journal of Research , 14 : 251 – 260 .
   Google Scholar
• Datta , S. C. and Sastry , T. G. 1988 . Determination of threshold levels for potassium release in three soils . Journal of the Indian Society of Soil Science , 36 : 676 – 681 .
   Google Scholar
• Datta , S. C. and Sastry , T. G. 1989 . K-threshold levels in relation to K reserve, release, and specificity . Journal of the Indian Society of Soil Science , 37 : 268 – 275 .
   Google Scholar
• Debnath , A. 1995 . Some aspects of potassium relationship with reference to plant availability West Bengal , India PhD dissB.C.K.V
   Google Scholar
• Dhar , A. 1999 . Studies on inherent potassium status in some soils of West Bengal in relation to plant availability , India : West Bengal . PhD dissB.C.K.V
   Google Scholar
• Ganeshamurthy , A. N. and Biswas , C. R. 1985 . Contribution of potassium from non-exchangeable sources in soil to crops . Journal of the Indian Society of Soil Science , 33 : 60 – 65 .
   Google Scholar
• Ghosh , D. and Debnath , A. 2010 . Plant utilization of native soil potassium reserves in soil by crops of rice in Entisol, Inceptisol, and Alfisols . Archives of Agronomy and Soil Science , 56 : 513 – 524 .
   Google Scholar
• Gjems , O. 1967 . Meddelelser fra Det Norske Skogforsokvesen , Vollebekk, Norway . No. 81, Bind 21
   Google Scholar
• Grewal , J. S. and Kanwar , J. S. 1966 . Forms of potassium in Punjab soils . Journal of the Indian Society of Soil Science , 14 : 63 – 67 .
   Google Scholar
• Griffin , R. A. and Jurinak , J. J. 1973 . Estimation of activity coefficients from the electrical conductivity of the natural aquatic systems and soils extracts . Soil Science , 116 : 26 – 30 .
   Web of Science ®Google Scholar
• Haylock , O. J. 1956 . A method for investigating the availability of non-exchangeable potassium . Transactions of the Sixth II International Congress of Soil Science , 1 : 403 – 408 .
   Google Scholar
• Jackson , M. L. 1967 . Soil chemical analysis , New York : Prentice-Hall .
   Google Scholar
• Le Roux , J. and Sumner , M. E. 1968 . Labile potassium in soils, I: Factors affecting the quantity–intensity (Q/I) parameters . Soil Science , 106 : 35 – 41 .
   Web of Science ®Google Scholar
• MacLean , A. J. 1961 . Potassium-supplying power of some Canadian soils . Canadian Journal of Soil Science , 41 : 196 – 206 .
   Google Scholar
• Mehta , B. V. 1976 . Potassium status of Gujrat soils . Journal of the Indian Society of Soil Science Bulletin , 10 : 25 – 32 .
   Google Scholar
• Mengel , K. 1978 . “ Potassium dynamics in the rhizosphere and potassium uptake by roots ” . In Potassium in soils and crops , Edited by: Sekhon , G. S. 127 – 145 . Gurgaon , India : Potash Research Institute of India .
   Google Scholar
• Pal , S. , Laskar , B. K. , De , G. K. and Debnath , N. C. 1991 . Nature of some acid sulphate soils occurring in the coastal area of West Bengal . Journal of the Indian Society of Soil Science , 39 : 56 – 62 .
   Google Scholar
• Pratt , P. F. 1965 . “ Digestion with hydrofluoric and perchloric acids for total potassium and sodium ” . In Methods of soil analysis, part 2 , Edited by: Black , C. A. 1019 – 1020 . Madison , Wisc : ASA .
   Google Scholar
• Rupa , T. R. , Srivastava , S. , Swarup , A. and Singh , D. 2001 . Potassium-supplying power of a typic Ustochrept profile using quantity/intensity technique in a long-term fertilized plot . Journal of Agricultural Sciences , 137 : 195 – 203 .
   Web of Science ®Google Scholar
• Santhy , P. , Jayasree Sankar , S. , Muthuvel , P. and Selvi , D. 1998 . Long-term fertilizer experiments: Status of N, P, and K fractions in soil . Journal of the Indian Society of Soil Science , 46 : 395 – 398 .
   Google Scholar
• Schollenberger , C. J. and Simon , R. H. 1945 . Determination of exchange capacity and exchangeable bases in soil–ammonium acetate method . Soil Science , 59 : 13 – 25 .
   Web of Science ®Google Scholar
• Tiwari , K. N. 1985 . Changes in potassium status of alluvial soils under intensive cropping . Fertilizer News , 30 : 17 – 24 .
   Google Scholar
• Venkatasubbiah , V. , Venkateswarlu , J. , Subba Rao , I. V. and Mukhilish , N. 1982 . “ Prediction of K-supplying power of some soils of Andhra Pradesh, India. Commission IV ” . In Proceedings of 12th International Congress of Soil Science New Delhi India, 8–16 February, 1982
   Google Scholar
• Wicklander , L. 1964 . In Chemistry of the soil Edited by: Bear , F. E. New Delhi: IBH
   Google Scholar