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Current IssueEditorial BoardOnline First ArticlesArchive

volume 41 issue 4 (december 2007) : 235 - 241

INTEGRATED USE OF CONCENTRATED ORGANIC MANURES, BIOFERTILIZERS AND INORGANIC NPK ON YIELD, QUALITY AND NUTRIENT CONTENT OF KHASI MANDARIN (CITRUS RETICULATA BLANCO.)

B
B.K. Medhi
A
A.J. Saikia
S
S.C. Bora
T
T.K. Hazarika
A
A.C. Barbora
1Citrus Research Station, Assam Agricultural University Gelapukhuri Road, Tinsukia- 786 125, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Medhi B.K., Saikia A.J., Bora S.C., Hazarika T.K., Barbora A.C. (2025). INTEGRATED USE OF CONCENTRATED ORGANIC MANURES, BIOFERTILIZERS AND INORGANIC NPK ON YIELD, QUALITY AND NUTRIENT CONTENT OF KHASI MANDARIN (CITRUS RETICULATA BLANCO.). Indian Journal of Agricultural Research. 41(4): 235 - 241. doi: .

ABSTRACT

An on-farm experiment was undertaken on twelve years old Khasi Mandarin plant in two orchards of Tinsukia and one orchard of Dibrugarh district, Assam during 2002 to 2004 with five different treatment combinations. Highest soil pH, available P2O5, leaf P and K were observed in the treatment receiving Mustard Oil Cake (MOC) (10kg/plant), bio-fertilizers (Azotobacter and PSB) and K2O (600 g/plant) with no inorganic N. Available nutrient balance over the initial content showed maximum mining of nitrogen while positive balance was noticed in case of P2O5 (initial year) and K2O all throughout the years of experimentation. Significantly highest soil Organic carbon (Organic Carbon), available Nitrogen, fruit quality (Juice, Total Soluble Solid, Total sugar, Ascorbic acid) and yield with highest economic return (5.75) were observed where half of the recommended dose of inorganic N and P2O5 were supplemented through Azotobacter and PSB along with K2O (600 g/plant) and Mustard Oil Cake (7.5 kg/plant).

KEYWORDS

    REFERENCES

    1. Ahmed, F. F. et al. (1988). Annals Agric. Sci.(Cairo), 33: 1249-1298.
    2. Bhargava, B. S. (2002). J. Indian Soc. Soil Sci. 50 : 352-373.
    3. Borah, S. C. et al. (2001). In: National Sem. Proc. Production System of Horticultural Crops, South Indian
    4. Horticulture held at Coimbatore. 49 : 115-118.
    5. Chonkar, P. K.(2002). J. Indian Soc. Soil Sci. 80: 328-332.
    6. Vol. 41, No. 4, 2007 241
    7. Du Plessis, S. F. & Koen, T. J. (1988). Proc. International Soc. Citriculture. 2 : 663-672.
    8. Jackson, M. L. (1979). Soil Chemical Analysis. Prentice Hall of India Pvt. Ltd., New Delhi.
    9. Kohli, R. R. et al. (1998). Trop. Agric. Res. Ext., Sri Lanka 1 : 5-15.
    10. Medhi, B. K. et al. (1995). J. agric. Sci. Soc. N.E. India. 8 : 228-231.
    11. Panse, V. G. and Sukhatme, P. V. (1954). Statistical Methods for Agriculture Workers. Indian Coun. Agric. Res., New Delhi.
    12. Pasricha, N. S. (2002). J. Indian Soc. Soil Sci. 50: 333-344.
    13. Somani, L.L (1996). Crop Production in Acid Soils. Mrs. Geeta Agrotech Pub. Academy, Udaypur.
    14. Tiwari, K. N. (2002). J. Indian Soc. Soil Sci. 80: 374-397.
    15. Tomar, N. K. (2002). J. Indian Soc. Soil Sci. 48 : 640-673
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    Indian Journal of Agricultural Research
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      volume 41 issue 4 (december 2007) : 235 - 241

      INTEGRATED USE OF CONCENTRATED ORGANIC MANURES, BIOFERTILIZERS AND INORGANIC NPK ON YIELD, QUALITY AND NUTRIENT CONTENT OF KHASI MANDARIN (CITRUS RETICULATA BLANCO.)

      B
      B.K. Medhi
      A
      A.J. Saikia
      S
      S.C. Bora
      T
      T.K. Hazarika
      A
      A.C. Barbora
      1Citrus Research Station, Assam Agricultural University Gelapukhuri Road, Tinsukia- 786 125, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Medhi B.K., Saikia A.J., Bora S.C., Hazarika T.K., Barbora A.C. (2025). INTEGRATED USE OF CONCENTRATED ORGANIC MANURES, BIOFERTILIZERS AND INORGANIC NPK ON YIELD, QUALITY AND NUTRIENT CONTENT OF KHASI MANDARIN (CITRUS RETICULATA BLANCO.). Indian Journal of Agricultural Research. 41(4): 235 - 241. doi: .

      ABSTRACT

      An on-farm experiment was undertaken on twelve years old Khasi Mandarin plant in two orchards of Tinsukia and one orchard of Dibrugarh district, Assam during 2002 to 2004 with five different treatment combinations. Highest soil pH, available P2O5, leaf P and K were observed in the treatment receiving Mustard Oil Cake (MOC) (10kg/plant), bio-fertilizers (Azotobacter and PSB) and K2O (600 g/plant) with no inorganic N. Available nutrient balance over the initial content showed maximum mining of nitrogen while positive balance was noticed in case of P2O5 (initial year) and K2O all throughout the years of experimentation. Significantly highest soil Organic carbon (Organic Carbon), available Nitrogen, fruit quality (Juice, Total Soluble Solid, Total sugar, Ascorbic acid) and yield with highest economic return (5.75) were observed where half of the recommended dose of inorganic N and P2O5 were supplemented through Azotobacter and PSB along with K2O (600 g/plant) and Mustard Oil Cake (7.5 kg/plant).

      KEYWORDS

        REFERENCES

        1. Ahmed, F. F. et al. (1988). Annals Agric. Sci.(Cairo), 33: 1249-1298.
        2. Bhargava, B. S. (2002). J. Indian Soc. Soil Sci. 50 : 352-373.
        3. Borah, S. C. et al. (2001). In: National Sem. Proc. Production System of Horticultural Crops, South Indian
        4. Horticulture held at Coimbatore. 49 : 115-118.
        5. Chonkar, P. K.(2002). J. Indian Soc. Soil Sci. 80: 328-332.
        6. Vol. 41, No. 4, 2007 241
        7. Du Plessis, S. F. & Koen, T. J. (1988). Proc. International Soc. Citriculture. 2 : 663-672.
        8. Jackson, M. L. (1979). Soil Chemical Analysis. Prentice Hall of India Pvt. Ltd., New Delhi.
        9. Kohli, R. R. et al. (1998). Trop. Agric. Res. Ext., Sri Lanka 1 : 5-15.
        10. Medhi, B. K. et al. (1995). J. agric. Sci. Soc. N.E. India. 8 : 228-231.
        11. Panse, V. G. and Sukhatme, P. V. (1954). Statistical Methods for Agriculture Workers. Indian Coun. Agric. Res., New Delhi.
        12. Pasricha, N. S. (2002). J. Indian Soc. Soil Sci. 50: 333-344.
        13. Somani, L.L (1996). Crop Production in Acid Soils. Mrs. Geeta Agrotech Pub. Academy, Udaypur.
        14. Tiwari, K. N. (2002). J. Indian Soc. Soil Sci. 80: 374-397.
        15. Tomar, N. K. (2002). J. Indian Soc. Soil Sci. 48 : 640-673
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