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All Journal AL KAUNIYAH Haga: Jurnal Pengabdian Kepada Masyarakat Jurnal Sapta Agrica Jurnal Riset Rumpun Ilmu Tanaman Tuhenori: Jurnal Ilmiah Multidisiplin Hidroponik: Jurnal Ilmu Pertanian dan Teknologi dalam Ilmu Tanaman Jurnal Ilmu Pertanian dan Perikanan (PENARIK)
Helmin Parida Zebua
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Social Sciences Other

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INTEGRATED FERTILIZATION FORMULATION: EFFECT OF GOAT MANURE AND PEARL NPK ON BIOMASS AND YIELD OF STRING BEANS Della Howu Howu Zendrato; Helmin Parida Zebua; Dian Agung Sanora Laia; Putra Hidayat Telaumbanua; Natalia Kristiani Lase; Yoel Melsaro Larosa; Yarman Gulo; Ridho Victory Nazara
Jurnal Sapta Agrica Vol 4 No 1 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i1.3908

Abstract

This study aims to evaluate the effect of goat manure and Mutiara NPK inorganic fertilizer on the vegetative growth, biomass, and yield of long bean (Vigna sinensis L.). The research was conducted using a factorial Randomized Group Design (RAK) consisting of two main factors. The first factor was the dose of goat manure with three levels: J1 (2 kg/plot), J2 (3 kg/plot), and J3 (4 kg/plot). The second factor was the application of NPK Mutiara fertilizer with four levels: P0 (control/no treatment), P1 (100 kg/ha or 24 g/plot), P2 (150 kg/ha or 36 g/plot), and P3 (200 kg/ha or 49 g/plot). Each experimental unit consisted of a uniform number of long bean plants to ensure reliable observations. The results indicated that both goat manure and NPK fertilizer significantly influenced vegetative growth parameters, including plant height, leaf number, and stem diameter, as well as yield components such as pod number, pod length, and total biomass. Furthermore, there was a significant interaction between goat manure and NPK application, where the optimal combination resulted in the highest biomass accumulation and pod yield. Specifically, the combination of the highest goat manure dose (J3) and moderate NPK dose (P2) provided the most favorable effect on long bean growth and productivity. These findings suggest that integrating organic and inorganic fertilizers can optimize nutrient availability, support sustainable crop production, and improve long bean yields. The study provides practical guidance for farmers seeking environmentally friendly fertilization strategies to enhance legume crop performance, while promoting soil fertility and sustainable agricultural practices.
ANALISIS RISIKO USAHATANI BAWANG MERAH Yoel Melsaro Larosa; Ridho Victory Nazara; Kurnia Selekta Etika Harefa; Putra Hidayat Telaumbanua; Helmin Parida Zebua; Dian Agung Sanora Laia; Natalia Kristiani Lase; Yarman Gulo
Jurnal Sapta Agrica Vol 4 No 2 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i2.3912

Abstract

This study aims to analyze the level of production and price risk in red onion farming, as well as to examine the behavior of red onion farmers in Tiganderket Village, Tiganderket Subdistrict, Karo Regency. The main focus of the study is to understand the extent of the risks faced by farmers in red onion production and how their decisions and willingness to take risks influence farming practices. The sample was determined using a census method, where the entire population of red onion farmers in the study area was used as respondents, totaling 15 individuals. Primary data were collected through surveys and direct interviews, ensuring that the information reflects the actual conditions in the field. Data analysis was conducted using multiple linear regression to determine the influence of several variables on production and price risk levels. The results showed that the production risk in red onion farming in Tiganderket Village is considered high, indicated by a coefficient of variation of 0.52, which exceeds the threshold of 0.5. Conversely, the price risk is relatively low, with a coefficient of variation of 0.02, well below the threshold. Furthermore, the behavior of farmers in facing risks is also considered high; all respondents, 100%, demonstrated a willingness to take risks in red onion farming practices. These findings indicate that although red onion production carries a high level of risk, farmers still exhibit proactive behavior and a willingness to make risky decisions, while price fluctuation risks are relatively low. Therefore, economically, red onion farming can still be carried out with a reasonable degree of certainty. These results can serve as a basis for developing agricultural strategies and supportive policies for red onion farmers in Karo Regency.
PERTANIAN PADI BEBAS PESTISIDA KIMIA: EDUKASI DAN PENERAPAN PENGENDALIAN HAMA TERPADU (PHT) DI DESA BAWOZA’UA, NIAS SELATAN Ridho Victory Nazara; Putra Hidayat Telaumbanua; Helmin Parida Zebua; Dian Agung Sanora Laia; Natalia Kristiani Lase; Yoel Melsaro Larosa; Yarman Gulo; Robert Alberth Sole
Haga : Jurnal Pengabdian Kepada Masyarakat Vol 4 No 1 (2025): Haga: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/haga.v4i2.3911

Abstract

This community service program was carried out with the primary goal of enhancing the capacity and self-reliance of rice farmers in implementing the concept of Integrated Pest Management (IPM) based on environmentally friendly principles. Through this approach, farmers are expected to reduce their dependence on chemical pesticides, which have long posed potential negative impacts on health, the environment, and the ecological balance of paddy field ecosystems. The program was implemented through a seven-session workshop consisting of interactive lectures, group discussions, field demonstrations, and hands-on practice. Each session focused on improving farmers’ knowledge and practical skills, such as identifying natural pest enemies, utilizing botanical pesticides, and applying rice cultivation techniques that support IPM systems. Evaluation was conducted using a pre–post test on six indicators of knowledge and behavioral intention. The results showed a significant improvement: five out of six indicators reached a success rate above 80%, while farmers’ commitment to reducing chemical pesticide use reached 76%. These outcomes are consistent with recent literature (FAO, 2022; IRRI, 2020; Rahman et al., 2023), which highlights the effectiveness of IPM and the importance of participatory extension approaches in promoting sustainable agricultural practices. The program recommends continued mentoring, particularly in the production of botanical pesticides and the implementation of synchronized planting strategies, to strengthen the resilience of local agricultural ecosystems.
A Comparative Study Of Stomatal Characteristics of The Nine Pandanus Species From Nias Island, North Sumatra Province, Indonesia Zebua, Helmin Parida; Pasaribu, Nursahara; Siregar, Etti Sartina
Al-Kauniyah: Jurnal Biologi Vol. 17 No. 2 (2024): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v17i2.31081

Abstract

AbstractThe identification of Pandanus species generally relies on morphological characteristics and requires confirmation from other identification features, such as stomata. A comparative study of stomatal characteristics among nine Pandan species originally from Nias Island, namely Pandanus atrocarpus, P. auranticus, P. labyrinthicus, P. militaris, P. odoratissimus, P. penangensis, P. tectorius, and P. utilis has been investigated. Anomocytic stomata without papillae on subsidiary cells were observed on both leaf surfaces, with significant interspecific differences in adaxial and abaxial stomatal frequencies. Pandanus tectorius exhibited the highest adaxial (30.71 ± 0.81) and abaxial (1.87 ± 0.12) stomatal frequencies. Pandanus labyrinthicus showed the highest stomatal index (adaxial 16.61 ± 2.51, abaxial 0.87 ± 0.11), while P. penangensis had the largest stomatal size (137.54 ± 6.66 µm). Overall, the stomatal parameters, including frequency, index, and size, were higher on the adaxial surface than the abaxial surface, emphasizing interspecific variations. These findings contribute valuable supportive data for the botanical systematics of Pandanus spp. in the region, enhancing our understanding of morphological characteristics crucial for species identification.AbstrakIdentifikasi jenis dari Pandanus cenderung menggunakan ciri morfologi dan memerlukan konfirmasi dari karakter lainnya, salah satunya stomata. Studi perbandingan stomata di antara sembilan spesies Pandan di Pulau Nias, Sumatera Utara telah dilakukan, yaitu Pandanus atrocarpus, P. auranticus, P. labirinthicus, P. militaris, P. odoratissimus, P. penangensis, P. tectorius, dan P. utilis. Hasil penelitian menunjukkan bahwa keseluruhan jenis Pandanus memiliki tipe stomata berupa anomositik pada kedua permukaan daun atau amfistomatous tanpa adanya papilosa pada sel tambahan. Frekuensi stomata adaksial dan abaksial memiliki perbedaan yang nyata secara statistik lintas jenis. Frekuensi stomata tertinggi pada daun adaksial/abaksial diamati berturut-turut dari P. tectorius (30,71 ± 0,81) dan P. tectorius (1,87 ± 0,12). Indeks stomata daun tertinggi diamati berturut-turut berasal dari P. labirinthicus (16,61 ± 2,51) untuk adaxial dan P. labirinthicus (0,87 ± 0,11) untuk abaxial. Ukuran stomata terbesar diamati berturut-turut berasal dari P. penangensis (137,54 ± 6,66 µm) dan P. odoratissimus (64,56 ± 3,96 µm). Secara umum, tipe stomata pada semua jenis adalah anomositik tanpa adanya papila pada sel penjaga. Parameter stomata lainnya, yaitu frekuensi, indeks, dan ukuran pada bagian adaksial cenderung lebih tinggi dibandingkan permukaan abaksial dengan variasi nilai secara interspesifik.
Co-Authors Ardianus Berkat Saleh Waruwu Arianto Laoli Asdian Juliyanti Lawolo Awal Sepkurniawan Waruwu Ayler Beniah Ndraha Benediktus Buala'aro Giawa Dawolo, Toni Yusman Della Howu Howu Zendrato Dian Agung Sanora Laia ELIYUNUS WARUWU etti sartina siregar Etti Sartina Siregar Florentina Agusmawati Duha Gea, Bridayanti Gulo, Namyra Olivia Gulo, Nice Anjelin Gulo, Perti Citra Damarni Gulo, Romanus Restu Gulo, Selianus Gulo, Veniman Intan Novibriani Zendrato Kurnia Selekta Etika Harefa Larosa, Yoel Melsaro Lase, Delipiter Lase, Ningsi Kristiani Lawolo, Todermanto Lawolo, Toni Yusman Lentri Priskila Waruwu Marni Putri Gea Mendrofa, Cynthia Florentina Mendrofa, Heppy Kardiani Mendrofa, Makchsi Virall Nasution, Susan Tri Susanti Rahmadhani Natalia Kristiani Lase Nazara, Linda Heppy Karisda Nisiyari Halawa Nursahara Pasaribu Nursahara Pasaribu Oferlina Harefa Putra Hidayat Telaumbanua Restu Jaya Zendrato Ridho Victory Nazara Robert Alberth Sole Tafonao, Agustinus Tafonao, Fedilina Telaumbanua, Miskaria Murni Waruwu, Arni Lestari Waruwu, Patricia Zeni Febriani Waruwu, Victoris Julman Yarman Gulo Yoel Melsaro Larosa Zai, Manyupril Lukevin Fatlow Zalukhu, Budieli Putra Zendrato, Beril Fernando Zendrato, Martirah Warni