Author

Helmin Parida Zebua

3 papers indexed here

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Open access Sep 2026

Pengaruh Pupuk Organik Cair (POC) Berbahan Dasar Cangkang Telur terhadap Pertumbuhan dan Produksi Tanaman Mentimun (Cucumis Sativus L.)

This study aims to analyze the effect of applying liquid organic fertilizer (LOF) made from eggshells on the growth and yield components of cucumber plants (Cucumis sativus L.), to determine the most effective dose, and to determine the nitrogen (N), phosphorus (P), potassium (K), and organic carbon content of the eggs...

Pikirkan Waruwu, Helmin Parida Zebua, Yoel Melsaro Larosa et al. · Populer: Jurnal Penelitian M... · 0 citations

Open access Oct 2026

Pengaruh Pemberian Pupuk Organik Cair Jakaba terhadap Pertumbuhan dan Hasil Tanaman Selada (Lactuca sativa L.)

This study aimed to determine the effect of applying Jakaba liquid organic fertilizer (LOF) on the growth and yield of lettuce (Lactuca sativa L.), as well as to identify the optimal dose of Jakaba LOF. The study was conducted in Ombolata Ulu Village, Gunungsitoli District, Gunungsitoli City, North Sumatra, from April...

Septenius Waruwu, Dian Agung Sanora Laia, N. K. Lase et al. · JURNAL RISET RUMPUN ILMU TAN... · 0 citations

Open access Oct 2026

Pengaruh Konsentrasi Mikroorganisme Lokal (MOL) Berbahan Limbah Nasi Basi terhadap Pertumbuhan dan Hasil Tanaman Kacang Panjang (Vigna unguiculata L)

This study aimed to analyze the effect of Local Microorganism (LOM) concentrations derived from stale rice waste on the growth and yield of long beans (Vigna unguiculata L.), to determine the concentration producing the best response, and to identify the nutrient content of the LOM. The research was conducted from Marc...

Krisna Sari Dohare, Helmin Parida Zebua, Putra Hidayat Telaumbanua et al. · JURNAL RISET RUMPUN ILMU TAN... · 0 citations