EFFECT OF KELOR (Moringa oleifera L.) EXTRACT ON GROWTH, BIOCHEMICAL CONTENT, AND REDUCING INORGANIC FERTILIZER OF KALE (Brassica oleracea L. var. acephala) CULTIVATED UNDER HYDROPONIC SYSTEM

Angie, Suryani (2021) EFFECT OF KELOR (Moringa oleifera L.) EXTRACT ON GROWTH, BIOCHEMICAL CONTENT, AND REDUCING INORGANIC FERTILIZER OF KALE (Brassica oleracea L. var. acephala) CULTIVATED UNDER HYDROPONIC SYSTEM. Diploma thesis, Universitas Andalas.

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Abstract

Organic farming using natural supplementations for improving plant performances are highly seeking. Kelor extract was considered as bio-stimulant and has gained more attention. The research was conducted to investigate the effect of kelor (Moringa oleifera L.) extract on the growth, biochemical content and reducing inorganic fertilizers on kale (Brassica oleracea L. var. acephala) cultivated under hydroponic system. The research used a complete randomized factorial design with 2 factors and 4 replication each. The first factor was foliar applied with and without kelor extract and the second factor was variation of Ab Mix concentrations (v/v) at 100% (0.02:1), 75% (0.015:1), and 50% (0.01:1). The result on growth parameter showed the application with kelor extract and 75% Ab Mix concentration has significant effect to enhanced the plant height, lear area, fresh and dry weight in kale plant. Also in biochemical content showed the application with kelor extract has not significant effect on chlorophyl content but aplication with kelor extract and 50% Ab Mix concentration showed higher amounts of water (9.34%) and crude fiber (9.70%) and decreased heavy metal content. The research conluded that kelor extract was effective to enhanced the growth and bichemical content also reduced 25% inorganic fertilizers on kale cultivated under hyroponic system. Keyword: Biostimulant, Hydroponic, Kelor extract, Reduced inorganic fertilizers

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