Jurnal Penelitian Pendidikan IPA (JPPIPA)
Vol 12 No 5 (2026): In Progress

The Influence of POC Empty Bunch and NPK 17+17+17 Fertilizer on The Growth and Production of Long Bean Plants

Robert Harianja (Universitas Sisingamangaraja XII Tapanuli)



Article Info

Publish Date
31 May 2026

Abstract

The research was conducted from June to August 2023 in Nagori Sah Kuda Bayu Pasar Baru at an altitude of ± 136 m above sea level. The purpose of the research is to determine the effect of Empty Fruit Bunches (Janjang) and NPK fertilizer on the growth and production of long bean plants (Vigna sinensis L.). This research was conducted using a factorial randomized block design (RBD), consisting of two factors: The first factor is the application of Empty Bunches, which consists: T0=without the application of empty bunches, T1=2.4kg/plot, T2=4.8kg/plot, and T3=7.2kg/plot. The second factor is the addition of NPK fertilizer doses N0=without NPK fertilizer, N1=24g/plot, N2=48g/plot, N3=72g/plot. The parameters observed in this study include: Number of Leaves (Sheets) and Plant Height (cm) at 2, 4 and 6 WAP, Number of Fruits Per Sample Plant (Pods), Weight of Fruits Per Sample Plant (g), and Weight of Fruits Per Plot (kg). The research results indicate that the NPK 17+17+17 treatment significantly affected the Number of Leaves, Plant Height, Number of Fruits per Plant, Weight of Fruits per Plant, and Weight of Fruits per Plot. The best dose of NPK fertilizer 17+17+17 is 150 kg/ha (72 g/plot).

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Journal Info

Abbrev

jppipa

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

Description

Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching ...