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Vennicomposting Leachate (Wonn Tea) as Liquid Fertilizer for Maize (Zea mays L.) Forage Production

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We investigated how dilution of vennicompost Leachate combined with different concentrations of NPK triple 17 fertilizer and polyoxyethylene tridecyl alcohol as dispersant and polyethylene nonylphenol as adherent to increase efficiency of fertilizer uptake, affected maize plant development. The vermicomposting leachate with pH 7.8 and electrolytic conductivity 2.6 dS m-1, contained 834 mg K>L-1,247 mg NO,-1 L-, and 168 mg PO/- L-1, was free of pathogens and resulted in a 65% germination index. Vermicompost Leachate diluted to 50% and mixed with 170 g L-1 NPK resulted in the best maize plant development while the dispersant and adherent had no significant effect. It was found that vermicompost leachate stimulated plant development when diluted, but fertilization with NPK was required for maximum growth.

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