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volume 33 issue 4 (december 2013) : 259-263,   Doi: 10.5958/j.0976-0547.33.4.021

POTASSIUM INDEXING OF SUMMER RICE GROWN IN THE SHALLOW TUBE WELL COMMAND AREAS OF CENTRAL BRAHMAPUTRA VALLEY ZONE OF ASSAM, INDIA

S
S. Dutta*
A
A.S.N. Zaman
1Regional Agricultural Research Station Assam Agricultural University, Nagaon – 782 002, India
Cite article:- Dutta* S., Zaman A.S.N. (2025). POTASSIUM INDEXING OF SUMMER RICE GROWN IN THE SHALLOW TUBE WELL COMMAND AREAS OF CENTRAL BRAHMAPUTRA VALLEY ZONE OF ASSAM, INDIA. Agricultural Science Digest. 33(4): 259-263. doi: 10.5958/j.0976-0547.33.4.021.

ABSTRACT

Plant samples from summer rice crop and corresponding surface soil samples (0-15 cm) were collected from farmer’s fields of Shallow Tube Well command areas of Central Brahmaputra Valley Zone, Assam. Analysis of soil and plant samples revealed widespread potassium deficiency in soil and rice crop. The average 1 N NH4OAc extractable K in the soils of different agricultural sub-divisions of the zone varied from 48 to 63 mg kg-1 and rated as low as per the nutrient index, except Kaliabar sub-division. On an average, 28 and 58% rice plants grown in the zone were categorized as moderately and extremely deficient in potassium respectively. Potassium deficiency was observed despite higher amount of non- exchangeable K (812 – 1598 mg kg-1) content in the soils.

REFERENCES

  1. Baruah, H.C., Bora, D.K., Baruah, T.C. and Nath, A.K. (1991). Fixation of potassium in three major soil orders of Assam. Journal of Indian Society of Soil Science 7(3):170-175.
  2. Baruah, H.C., Baruah, T.C. and Borah, N. (1996) Kinetics of non-exchangeable potassium release in major soil orders of Assam. Journal of Indian Society of Soil Science 44, 54-59.
  3. Dutta,S. and Shanwal,A.V. (2006). Potassium bearing minerals in some soils of semi-arid (Haryana) and humid (Assam) regions of India. Agropedology 16: 86-91.
  4. Hundal, L.S. and Pasricha, N.S. (1994) Thermodynamic parameters of potassium exchanges as characterized by equilibrium and kinetic approaches in chloride and per chlorate background anions. Soil Science. 157: 356-364
  5. Hundal, L.S. and Pasricha, N.S. (1998) Adsorption-desorption kinetics of potassium as influenced by temperature and background anions. Geoderma. 83: 215-225
  6. Jackson, M.L. 1(973) Soil Chemical Analysis, Prentice Hall of India Pvt. Ltd., New Delhi.
  7. Knudsen, D., Peterson, G.A. and Pratt, P.F. (1982) Lithium, Sodium and Potassium. In: Method of Soil Analysis, Part 2, Second Edition (Page, A.L., ed.), American Society of Agronomy,Inc. and Soil Science Society of America,Inc., Madison, Wisconsin, USA. pp.225-245.
  8. Singh Komal and Bansal, S.K. (2009) Potassium indexing of crops grown on eight benchmark soil series of India. Communication in Soil Science and Plant Analysis. 40: 1369-1379
  9. Srinivasa Rao, C., Subba Rao, A. and Rupa T. R. (2000) Plant mobilization of reserve potassium from 15 smectite soils in relation to mineralogy and soil test potassium. Soil Science. 165: 578-586
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    volume 33 issue 4 (december 2013) : 259-263,   Doi: 10.5958/j.0976-0547.33.4.021

    POTASSIUM INDEXING OF SUMMER RICE GROWN IN THE SHALLOW TUBE WELL COMMAND AREAS OF CENTRAL BRAHMAPUTRA VALLEY ZONE OF ASSAM, INDIA

    S
    S. Dutta*
    A
    A.S.N. Zaman
    1Regional Agricultural Research Station Assam Agricultural University, Nagaon – 782 002, India
    Cite article:- Dutta* S., Zaman A.S.N. (2025). POTASSIUM INDEXING OF SUMMER RICE GROWN IN THE SHALLOW TUBE WELL COMMAND AREAS OF CENTRAL BRAHMAPUTRA VALLEY ZONE OF ASSAM, INDIA. Agricultural Science Digest. 33(4): 259-263. doi: 10.5958/j.0976-0547.33.4.021.

    ABSTRACT

    Plant samples from summer rice crop and corresponding surface soil samples (0-15 cm) were collected from farmer’s fields of Shallow Tube Well command areas of Central Brahmaputra Valley Zone, Assam. Analysis of soil and plant samples revealed widespread potassium deficiency in soil and rice crop. The average 1 N NH4OAc extractable K in the soils of different agricultural sub-divisions of the zone varied from 48 to 63 mg kg-1 and rated as low as per the nutrient index, except Kaliabar sub-division. On an average, 28 and 58% rice plants grown in the zone were categorized as moderately and extremely deficient in potassium respectively. Potassium deficiency was observed despite higher amount of non- exchangeable K (812 – 1598 mg kg-1) content in the soils.

    REFERENCES

    1. Baruah, H.C., Bora, D.K., Baruah, T.C. and Nath, A.K. (1991). Fixation of potassium in three major soil orders of Assam. Journal of Indian Society of Soil Science 7(3):170-175.
    2. Baruah, H.C., Baruah, T.C. and Borah, N. (1996) Kinetics of non-exchangeable potassium release in major soil orders of Assam. Journal of Indian Society of Soil Science 44, 54-59.
    3. Dutta,S. and Shanwal,A.V. (2006). Potassium bearing minerals in some soils of semi-arid (Haryana) and humid (Assam) regions of India. Agropedology 16: 86-91.
    4. Hundal, L.S. and Pasricha, N.S. (1994) Thermodynamic parameters of potassium exchanges as characterized by equilibrium and kinetic approaches in chloride and per chlorate background anions. Soil Science. 157: 356-364
    5. Hundal, L.S. and Pasricha, N.S. (1998) Adsorption-desorption kinetics of potassium as influenced by temperature and background anions. Geoderma. 83: 215-225
    6. Jackson, M.L. 1(973) Soil Chemical Analysis, Prentice Hall of India Pvt. Ltd., New Delhi.
    7. Knudsen, D., Peterson, G.A. and Pratt, P.F. (1982) Lithium, Sodium and Potassium. In: Method of Soil Analysis, Part 2, Second Edition (Page, A.L., ed.), American Society of Agronomy,Inc. and Soil Science Society of America,Inc., Madison, Wisconsin, USA. pp.225-245.
    8. Singh Komal and Bansal, S.K. (2009) Potassium indexing of crops grown on eight benchmark soil series of India. Communication in Soil Science and Plant Analysis. 40: 1369-1379
    9. Srinivasa Rao, C., Subba Rao, A. and Rupa T. R. (2000) Plant mobilization of reserve potassium from 15 smectite soils in relation to mineralogy and soil test potassium. Soil Science. 165: 578-586
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