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All Journal Proceeding of International Conference on Biology Education, Natural Science, and Technology
Dian Pirma Natasari Purba
Universitas Kristen Indonesia
Biochemistry, Genetics & Molecular Biology Chemistry Education Physics

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The Effect of Liquid Organic Fertilizer (Fermentation of Anchovy Waste) to Growth of Pakcoy (Brassica rapa L.) Dian Pirma Natasari Purba; Riska Septia Wahyuningtyas; Sunarto Sunarto; Marina Silalahi
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2026: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

This study aimed to analyze the effect of liquid organic fertilizer derived from Indian anchovy waste (Stolephorus indicus) on the growth of pakcoy (Brassica rapa L.) and to determine the most effective fertilizer concentration. The study employed an experimental method using a Completely Randomized Design with six treatments and four replications, consisting of treatments without fertilizer, positive control (NPK), and liquid organic fertilizer with concentrations of 5%, 10%, 15%, and 20%. The observed parameters included plant height, number of leaves, stem diameter, and wet weight. Data were analyzed using One Way ANOVA followed by Duncan’s multiple range test. The results showed that liquid organic fertilizer derived from Indian anchovy waste significantly affected plant height and stem diameter, but did no significant effect on leaf number and wet weight. The 20% fertilizer concentration produced the best growth response with an average plant height of 250.50 mm and stem diameter of 68.00 mm, and was not significantly different from the positive control (NPK). These findings indicated that liquid organic fertilizer derived from Indian anchovy waste had the potential to serve an environmentally friendly alternative fertilizer to support the growth of pakcoy.
Co-Authors Marina Silalahi Riska Septia Wahyuningtyas Sunarto Sunarto