Author(s):

Bijjula Sruthi and Somasundaram E

Abstract: Field experiment was conducted at Tamil Nadu Agricultural University, Coimbatore during 2018-19 to evaluate the influence of organic manures on yield, quality and economics of aggregatum onion. The experiment was laid out in a randomized block design with twelve treatments which was replicated thrice Treatments included organic, inorganic and control treatment. FYM, Vermicompost, Ganajeevamruth, humic acid are applied as basal and Panchagavya, banana pseudostem sap, Jeevamruth are applied as foliar spray on 30 DAS, 45 DAS and 60 DAS. Yield parameters such as bulb number per clump, bulb weight per clump, bulb yield, quality parameters such as total soluble solids (TSS), ascorbic acid were recorded. Economic parameters such as net return, gross return and B:C ratio were calculated. Application of FYM @ 25t ha^-1 along with Panchagavya @ 3% significantly recorded maximum number of bulbs per clump (5.73), bulb weight per clump (70g), bulb yield (15.9 t ha^-1),TSS (22.5⁰B) and ascorbic acid (18.1mg/100g) followed by recommended dose of NPK along with TNAU pulse wonder @ 2kg acre^-1. Application of Humic acid @ 25kg ha^-1 along with banana pseudostem sap @ 2% recorded maximum gross return, net return and B:C ratio followed by recommended dose of NPK (60:60:30 ) with TNAU pulse wonder @ 2kg acre^-1.

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