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Lutfi Henderlan Harahap
Universitas Pembinaan Masyarakat Indonesia (UPMI)
Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Education Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Medicine & Pharmacology Nursing Public Health Social Sciences

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RESPON KOMBINASI PUPUK NPK 16:16:16 DAN PUPUK KANDANG SAPI TERHADAP PERTUMBUHAN TANAMAN TERUNG (Solanum melongena L.) Harahap, Lutfi Henderlan; Gulo, Liris; Harahap, Rahmaniah
Agros Journal of Agriculture Science Vol 25, No 4 (2023): edisi Oktober
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v25i4.3473

Abstract

This research aims to determine the growth response of purple eggplant (Solanum melongena L) plants given NPK 16:16:16 fertilizer and cow manure. This research is located at the UPMI Research Land, Jl. Pasar 12 Marindal II Village Hall, Patumbak District, Deli Serdang Regency, from May 2023 to June 2023. This research used a factorial randomized block design (RAK) consisting of two factors. The first factor is the dose of cow manure fertilizer, and the second factor is NPK 16:16:16 fertilizer. The research results showed that 2 kg/plant cow manure had a significant effect on plant height parameters at 28 HST (25.37 cm). NPK 16:16:16 100 g/plant fertilizer affected plant height parameters at 28 HST (24.59 cm). There is an interaction between the combination of cow manure and NPK 16:16:16 fertilizer, with the best combination of NPK 50 g/plant and cow manure 0 g/plant at plant height parameters of 28 HST (26.11 cm). Key-words: Cow Manure, Eggplant, NPK 16:16:16 Fertilizer INTISARI Penelitian ini bertujuan untuk mengetahui respon pertumbuhan tanaman terung Ungu (Solanum melongena L) yang diberi pupuk NPK 16:16:16 dan pupuk kandang sapi. Penelitian ini berlokasi di Lahan Penelitian UPMI Jl. Balai Desa Pasar 12 Marindal II, Kecamatan Patumbak, Kabupaten Deli Serdang pada bulan Mei 2023 sampai dengan Juni 2023. Penelitianini menggunakan rancangan acak kelompok (RAK) faktorial yang terdiri dari dua faktor. Faktor pertama adalah dosis pupuk Kandang Sapi dan faktor kedua adalah pupuk NPK 16:16:16. Hasil penelitian menunjukkan bahwa pupuk Kandang sapi 2 Kg/tanaman berpengaruh nyata terhadap parameter tinggi tanaman 28 HST (25,37 cm). Pupuk NPK 16:16:16 100 g/tanaman mempengaruhi parameter tinggi tanaman 28 HST (24,59 cm). Terdapat interaksi antara kombinasi pupuk pupuk kandang sapi dan pupuk NPK 16:16:16 dengan kombinasi terbaik NPK 50 g/tanaman dan pupuk kandang sapi 0 g/tanaman pada parameter tinggi tanaman 28 HST (26,11 cm).  Kata kunci: Pupuk Kandang Sapi, Pupuk NPK 16:16:16, Terung 
Pengaruh ZPT Auksin dan POC Photosynthetic Bacteria (PSB) Terhadap Hasil Produksi Tanaman Kangkung Darat (Ipomoea reptans P.) Lawolo, Andi Gusman Sarta; Zulfida, Ida; Harahap, Lutfi Henderlan
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7931

Abstract

Ipomoea reptans P. commonly known as water spinach, is a leafy vegetable with high economic value and is widely consumed by the Indonesian population. This plant is extensively cultivated due to its short harvest cycle of approximately 25–30 days after planting, which provides farmers with the opportunity to increase land productivity. This study was conducted on agricultural land at the Universitas Pembinaan Masyarakat Indonesia (UPMI), Medan, from June to August 2025. A factorial Randomized Block Design (RBD) 4×4 with three replications was employed. The first factor was the Auxin Plant Growth Regulator (PGR) with four levels: Z0 = control, Z1 = 50 ml/L, Z2 = 100 ml/L, and Z3 = 150 ml/L. The second factor was POC PSB with four levels: P0 = control, P1 = 50 ml/L, P2 = 100 ml/L, and P3 = 150 ml/L. The results indicated that the application of Auxin PGR significantly affected the production parameters, with treatment P2 (100 ml/L) yielding a fresh weight of 58.1 grams. Furthermore, the interaction between Auxin PGR and POC PSB had a highly significant effect on the fresh weight of plants. The optimal combination was found in treatment Z3P2 (150 ml/L Auxin + 100 ml/L POC PSB), resulting in a fresh weight of 65.7 grams. In conclusion, the combined application of 150 ml/L Auxin PGR and 100 ml/L POC PSB significantly enhances the growth and yield of Ipomoea reptans and represents an environmentally friendly alternative technology to improve horticultural productivity. Keywords: ipomoea reptans, auxin plant growth regulator, POC PSB, growth, yield
Pengaruh Lama Perendaman Air Kelapa dan Aplikasi Pupuk Kilat terhadap Pertumbuhan dan Hasil Panen Kacang Hijau (Vigna radiata L.) Halawa, Juliman; Zulfida, Ida; Harahap, Lutfi Henderlan
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7962

Abstract

This study aimed to evaluate the effect of coconut water seed soaking duration and flash fertilizer application on the growth and yield of mung bean (Vigna radiata L.). The experiment was conducted at the experimental field of the Faculty of Agriculture, Indonesian Community Development University, Medan, from May to August 2024. A Randomized Block Design (RBD) with two factors and three replications was employed. The first factor was coconut water soaking duration (0, 2, 4, and 6 hours), while the second factor was flash fertilizer application (0, 0.25, 0.5, and 1 cc/L). Observed parameters included plant height, number of leaves, flowering age, pod weight per plant, and pod weight per plot. Results indicated that a soaking duration of 6 hours (P3) had a highly significant effect on all observed parameters, producing the highest plant height, leaf number, and pod weight. Similarly, flash fertilizer at 1 cc/L (K3) promoted better vegetative and reproductive growth compared to other treatments. The interaction of P3K3 produced the best performance across growth and yield traits. These findings suggest that combining coconut water seed soaking for 6 hours with flash fertilizer application at 1 cc/L is an effective strategy to enhance mung bean productivity. Keywords: mung bean, coconut water, flash fertilizer, growth, yield
Respon Pertumbuhan Sawi Hijau (Brassica juncea L.) Terhadap Pemberian Pupuk Jadam Microbial Solution (JMS) dan NPK Cair Zai, Seiman Jaya; Samah, Eri; Harahap, Lutfi Henderlan
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7980

Abstract

This study aimed to determine the effect of applying Jadam Microbial Solution (JMS) and liquid NPK fertilizer, both factorially and in combination, on the growth of mustard greens (Brassica juncea L.). The experiment was carried out using a factorial Randomized Block Design (RBD) consisting of two factors. The first factor was JMS application with four levels (J0 = 0 ml/l water, J1 = 100 ml/l water, J2 = 200 ml/l water, J3 = 300 ml/l water), and the second factor was liquid NPK fertilizer with four levels (N0 = 0 ml/l water, N1 = 10 ml/l water, N2 = 15 ml/l water, N3 = 20 ml/l water). Each treatment combination was repeated three times, resulting in 16 treatment combinations. The results showed that JMS application had a significant effect on plant height and number of leaves at all observation times (7, 14, and 21 days after planting/DAP), indicating improved vegetative growth and yield. Liquid NPK fertilizer application also significantly affected plant height and number of leaves at all observation times. The combination of JMS and liquid NPK fertilizer had no significant effect during the early growth stage (7 DAP), but showed significant effects on plant height and number of leaves at 14 and 21 DAP. These findings indicate that factorial application of JMS and liquid NPK fertilizer can enhance the growth of mustard greens, while their combination is effective at certain vegetative growth stages. Keywords: Brassica juncea L., jadam microbial solution, liquid NPK
RESPON PEMUPUKAN BERDASARKAN KEBUTUHAN HARA DAN TARGET PRODUKSI TERHADAP PERTUMBUHAN TANAMAN SAWI HIJAU (Brassica juncea. L) PADA SISTEM HIDROGANIK Harahap, Lutfi Henderlan; Miyarnis, Miyarnis; Sarifuddin, Sarifuddin
Agros Journal of Agriculture Science Vol 26, No 1 (2024): Januari
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i1.4032

Abstract

This research aims to determine the growth response of green mustard greens (Brassica Juncea L), which are given fertilizer based on production targets and nutrient indexes using a hydroganic system. This research is located on Jl. Development No. 50 East Helvetia Village, Medan Helvetia District, Medan City, from November 2023 to December 2023. This research used a factorial, completely randomized design (CRD) consisting of two factors. The first factor is the application of complete fertilizer (urea, SP-36, KCL, and dolomite), and the second factor is based on the soil nutrient index. The research results showed that the interaction between complete fertilizer and the nutrient index had a significant effect on the parameters of plant height at 4 WAP in the P2B3 treatment (23.7 cm) and leaf width at 3 WAP in the P2B3 treatment (8.6 cm). A complete fertilizer dosage with a production target of 10 tons has a significant effect on the parameters of plant height (4 WAP, 23.3 cm), number of leaves (4 WAP, 13 leaves), and leaf width (4 WAP, 9.5 cm). The best soil nutrient index in this study was a nutrient index of 100% for plant height parameters of 4 WAP (22.2 cm) and leaf width at 4 WAP (9.0 cm). The conclusion of this research is that the interaction between increasing doses of complete fertilizer and the soil nutrient index using a hydroganic system can increase the growth of green mustard plants. Keywords: Complete Fertilizer, Soil Nutrient Index, Hydrogenic System, Mustard Greens INTISARIPenelitian ini bertujuan untuk mengetahui respon pertumbuhan tanaman Sawi Hijau (Brassica Juncea L) yang diberi pupuk berdasarkan target produksi dan indeks hara menggunakan sistem hidroganik. Penelitian ini berlokasi di Jl. Pembanguan No. 50 Kelurahan Helvetia Timur, Kecamatan Medan Helvetia, Kota Medan pada bulan November 2023 sampai dengan Desember 2023. Penelitian ini menggunakan rancangan acak Lengkap (RAL) faktorial yang terdiri dari dua faktor. Faktor pertama adalah pemberian pupuk lengkap Urea, SP-36, Kcl, dan Dolomit dan faktor kedua adalah berdasarkan indeks hara tanah. Hasil penelitian menunjukkan bahwa interaksi antara Pupuk Lengkap dengan Indeks Hara berpengaruh nyata terhadap parameter tinggi tanaman 4 MST perlakuan P2B3 (23,7 cm) dan Lebar Daun pada 3 MST perlakuan P2B3 (8,6 cm). dosis Pupuk lengkap dengan target produksi 10 ton berpengaruh nyata pada parameter tinggi tanaman 4 MST (23,3 cm), Jumlah daun 4 MST (13 Helai), Lebar Daun 4 MST (9,5 cm). Indeks hara tanah terbaik dalam penelitian ini terdapat pada indeks hara 100% pada parameter tinggi tanaman 4 MST (22,2 cm), Lebar daun pada 4 MST (9,0 cm). simpulan dari penelitian ini interaksi antara dosis pupuk lengkap yang meningkat dengan indeks hara tanah menggunakan sistem hidroganik mampu meningkatkan pertumbuhan tanaman Sawi Hijau. Kata kunci: Pupuk Lengkap, Indeks Hara Tanah, Sistem Hidroganik, Sawi Hijau
Co-Authors Anwar, Syahferi Arisandi, Nadila Athira Demitri Baene, Anusafati Balqis Nurmauli Damanik Damanik, Balqis Nurmauli Daniel, MHD Yandri Dudut Tanjung Eka Nenni Jairani Giawa, Suci Citrawani Giawa, Yunus Yaaro Gulo, Liris Halawa, Juliman Harahap, Rahmaniah Haria, Fransiska Roslina Hulu, Yusnita Dewi Icha Azzah Nabillah Ida Zulfida, Ida Ismayadi ismayadi Jairani, Eka Nenni Khaira Sihotang, Mutiah Lawolo, Andi Gusman Sarta Leoman Leoman Liris Gulo Miyarnis Miyarnis Murni Noviani Nasution Nasution, Murni Noviani Rahmaniah Harahap Roswita Oesman Roswita Oesman Salman Alfarisi Samah, Eri Sarifuddin Sarifuddin Tuty Hertati Purba Yelfi Yana , Linda Br Jabat Yusuf Hanafiah Zai, Seiman Jaya