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NITROGEN SKIPPING THROUGH DUAL CROPPING OF Azolla WITH RICE

  • Author:R. THAMIZH VENDAN, G. GOPALASWAMY, S. ANTHONI RAJ, A. ABDUL KAREEM and T.B. RANGANATHAN

    p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:85, Issue:jul-sep

    DOI: https://doi.org/10.29321/MAJ.10.A00752
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Abstract

                                The possibility of skipping a top dressing of fertilizer N through the use of Azolla microphylla was studied. Inoculation of A. microphylla on 10 day after transplantation at I t ha" and incorporation at 30 DAT increased the soil organic carbon content and available N status. Skipping of the second top dressing of fertilizer N at 25 Kg ha' which coincides with Azolla trampling saves the fertilizer and labour for top dressing besides increasing the rice yield significantly at all the seasons tested.

Key words : Azolla, N reduction, organic carbon, yield.

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ISSN : 0024-9602
eISSN : 2582-5321

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