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Siti Hardianti Wahyuni
Dosen Fakultas Pertanian Universitas Graha Nusantara Padangsidimpuan Kampus I Tor Simarsayang Padangsidimpuan
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Potensi Metarhizium anisopliae dalam Menurunkan Populasi Larva Kumbang Badak (Oryctes rhinoceros L.) pada Tanaman Kelapa Sawit Paisal Henri Hasibuan; Siti Hardianti Wahyuni; Meiliana Friska
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/4atjqb69

Abstract

This research was carried out in June 2023 – September 2023. The study was designed using a Complete Randomized Design (RAL) with 4 treatments and 10 replicates. The parameters observed in this study were the percentage of mortality and infection, changes in the behavior of O. rhinoceros larvae, the morphology of O. rhinoceros larvae that showed symptoms of being infected with M. anisopliae and tissue damage at each stage of infection symptoms caused by M. anisopliae fungi. The highest mortality occurred in the M3 treatment (Applied with M. Anisopliae fungus on 25 grams of corn media/jar) with a mortality percentage of 91% on the 20th day after application, while for the M1 and M2 treatments, there was also mortality, but it took longer. Damage to the tissue of O. rhinoceros larvae in each symptom of infection due to the treatment of entomopathogenic fungi M. anisopliae consists of attachment and penetration of fungal spores, infection and growth of mycelium in internal tissues, production of toxins fungi, degradation of hemolymph and vital organs, death and growth of external fungi and the drying and decomposition of the larval body occurs.
Pengaruh Pemberian Pupuk Organik Cair (POC) dan Pupuk Anorganik Terhadap Pertumbuhan dan Produksi Bawang Merah (Allium Ascolonicum L.Varietas Bima) Surya Handayani; Siti Hardianti Wahyuni; Meiliana Friska; Jumaria
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/hf6v8738

Abstract

Shallots are a horticultural commodity that has an important role in the Indonesian economy. The use of liquid organic fertilizer (POC) in shallot cultivation can reduce the use of excess inorganic fertilizer. The aim of this research was to determine the effect of applying liquid organic fertilizer (POC) and inorganic fertilizer on the growth and production of shallots. The research used a randomized block design (RAK) with two factors. The first factor is the POC dose (0, 16 ml, 32 ml), the second factor is the anosganic fertilizer percentage dose of 0%, 50% and 100%. POC is applied every week 8 times, while inorganic fertilizer is applied 7 days after planting (DAP) and 30 DAP. Data analysis used analysis of variance (ANNOVA) and DMRT further test. The results showed that giving POC and a combination of both fertilizers had no significant effect (P>0.05), while giving inorganic fertilizer had a very significant effect on the growth and production of shallots (P<0.01). Providing a 50% dose of inorganic fertilizer produced the tallest plant (38.21 cm), the highest number of leaves (47.53), the highest number of tubers (22.10), the heaviest wet tuber weight (150.05 g) and the heaviest dry weight (132.22 g). ). The effect of giving the best fertilizer on the growth and production of shallots was obtained at a dose of 50% inorganic fertilizer.
Penggunaan Ekstrak Daun Pepaya (Carica papaya) sebagai Insektisida Nabati terhadap Hama Ulat Daun (Spodoptera litura) pada Sawi Doharni; Parmanoan Harahap; siti Hardianti Wahyuni
Journal Agro-Livestock Vol. 3 No. 01 (2025): JAL - Januari
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/hgdg7e24

Abstract

This study aimed to examine the effect of papaya leaf extract (Carica papaya) in controlling leaf-eating caterpillar pests (Spodoptera litura) on mustard greens (Brassica juncea). The research was conducted in Muara Pertemuan Village, Mandailing Natal Regency, from November 2023 to February 2024. The method used was a Randomized Block Design (RBD) with five treatments and six replications, resulting in a total of 30 experimental units. The treatments consisted of A0 (control), A1 (papaya leaf extract 50 g/L water), A2 (100 g/L water), A3 (150 g/L water), and A4 (200 g/L water). The observed parameters included the number of plants infested by Spodoptera litura, the number of damaged leaves, and plant yield. The results showed that increasing the concentration of papaya leaf extract effectively reduced the number of plants and leaves infested by Spodoptera litura. The highest yield was obtained from the treatment with 200 g/L papaya leaf extract, with an average production of 5700 grams.
AgriVision AI: Sistem Deteksi Dini Penyakit Tanaman Kedelai (Glycine max L.) Menggunakan Deep Learning Berbasis Smartphone Akhiruddin Pulungan; Surya Handayani; Muhammad Noor Hasan Siregar; Siti Hardianti Wahyuni; Meiliana Friska; Jumaria Nasution
Aksi Kita: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 4 (2026): JULI-AGUSTUS
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/23zy5a46

Abstract

Produktivitas tanaman kedelai (Glycine max L.) di Indonesia masih menghadapi berbagai kendala, salah satunya adalah serangan penyakit daun yang dapat menyebabkan penurunan hasil panen secara signifikan. Identifikasi penyakit yang masih dilakukan secara manual sering kali memerlukan waktu, bergantung pada pengalaman petani, dan berpotensi menghasilkan diagnosis yang kurang akurat. Penelitian ini bertujuan mengembangkan AgriVision AI, sebuah sistem deteksi dini penyakit tanaman kedelai berbasis smartphone yang memanfaatkan teknologi Deep Learning dengan algoritma Convolutional Neural Network (CNN). Metode penelitian menggunakan pendekatan Research and Development (R&D) yang meliputi tahap analisis kebutuhan, pengumpulan data, perancangan sistem, implementasi model, pengujian, dan evaluasi. Dataset yang digunakan terdiri atas citra daun kedelai sehat, karat daun, bercak daun, dan hawar daun yang diperoleh dari sumber publik dan citra lapangan. Hasil penelitian menunjukkan bahwa model CNN mampu melakukan klasifikasi penyakit dengan tingkat kinerja yang sangat baik, ditunjukkan oleh nilai accuracy sebesar 94,8%, precision 93,6%, recall 94,1%, dan F1-score 93,8%. Analisis confusion matrix memperlihatkan bahwa sebagian besar citra berhasil diklasifikasikan dengan benar pada setiap kelas dengan tingkat kesalahan yang relatif rendah. Integrasi model ke dalam aplikasi smartphone memungkinkan proses identifikasi penyakit dilakukan secara cepat, praktis, dan real-time. Sistem ini juga menyediakan informasi gejala serta rekomendasi pengendalian penyakit sehingga dapat membantu petani dalam pengambilan keputusan. Dengan demikian, AgriVision AI berpotensi mendukung penerapan smart farming dan meningkatkan efektivitas pengelolaan kesehatan tanaman kedelai.  
Optimalisasi Lahan Pekarangan melalui Pengembangan Tanaman Jahe di Desa Pargarutan Dolok, Kabupaten Tapanuli Selatan Siti Hardianti Wahyuni; Meiliana Friska; Surya Handayani; Jumaria Nasution; Sriwinaty Harahap
Jurnal INDONESIA RAYA (Pengabdian pada Masyarakat Bidang Sosial, Humaniora, Kesehatan, Ekonomi dan Umum) Vol. 6 No. 2 (2025)
Publisher : Perkumpulan Dosen Muda Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This community service program aims to optimize the utilization of home gardens through the development of ginger (Zingiber officinale) cultivation in Pargarutan Dolok Village, South Tapanuli Regency. The activity was implemented in response to the low productivity of village home gardens, which are generally underutilized for economic purposes. The implementation method employed a participatory approach involving local residents directly through stages of socialization, training, demonstration plot establishment, technical assistance, and program sustainability evaluation. A total of 42 families actively participated out of 60 targeted households, with a plant growth success rate of 92%. The application of liquid organic fertilizer and botanical pesticides effectively increased the number of shoots and reduced the incidence of plant diseases. The social impact showed an 85% improvement in community awareness and skills in utilizing home gardens, along with the formation of the “Jahe Sejahtera Pargarutan” group as a collaborative business platform. Economically, the potential additional household income from 50 ginger polybags reached IDR 270,000–360,000 per planting cycle. The results of this program demonstrate that optimizing home garden land through ginger cultivation can significantly enhance household welfare and food security while promoting economic independence among rural communities.
Market Opportunity and Consumer Preferences Analysis for Sawo (Manilkara zapota L.) Product Diversification as a Local Agribusiness in Angkola Muaratais District Abdul Rahman Suleman; Siti Hardianti Wahyuni; Muhammad Noor Hasan Siregar
Majalah Ilmiah Bijak Vol. 22 No. 2: September 2025
Publisher : Institut Ilmu Sosial dan Manajemen STIAMI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31334/bijak.v22i2.4706

Abstract

This study aims to identify the potential for diversification of products from sapodilla fruit (Manilkara zapota L) that need optimally utilized and have high market opportunities in Angkola Muaratais District. Using a descriptive qualitative approach supported by quantitative analysis, this research involved 42 respondents: farmers, workers, SME entrepreneurs, and consumers. Data were collected through in-depth interviews, structured questionnaires, and participatory observation, followed by mixed-method analysis, including product evaluation matrix and market feasibility analysis. Results show three main potential products with significant development opportunities. Premium sapodilla syrup shows the highest potential (score 4.24/5.0), followed by variant sapodilla chips (4.08/5.0) and natural sapodilla jam (3.92/5.0). Market segmentation analysis identifies three main consumer segments: health-conscious (35%), convenience seekers (40%), and traditional value seekers (25%). Digital market penetration projections indicate significant growth potential, reaching 85% through social media and e-commerce channels within six months. Product evaluation reveals that premium sapodilla syrup excels in raw material availability (4.5/5.0) and shelf life (4.5/5.0), while variant sapodilla chips show highest market interest (4.5/5.0) and value addition potential (4.5/5.0). The study indicates substantial market potential with a Total Available Market of 150,000 consumers and a Serviceable Obtainable Market of 15,000 consumers, projecting 15-20% annual market growth. The findings contribute to understanding critical factors in local resource-based product development and support the Green Economy theory regarding sustainable value addition in local economic development. This research provides practical implications for product development strategies and policy recommendations for supporting the sapodilla processing industry at the regional level.
Analysis Of Macro Nutrients Of Chicken Manure Decomposed Bytrichoderma Viridemushrooms With Different Storage Lengths Darmadi Erwin Harahap; Siti Hardianti Wahyuni; Muhammad Darwis; Muharram Fajrin Harahap; Mizan Maulana
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i2.60

Abstract

Trichoderma spp. It is an antagonistic fungus that is very important for biodiversity control. This research was conducted at the Laboratory of the Faculty of Agriculture, Universitas Graha Nusantara Padangsidimpuan, with a height of + 480 m above sea level, in August to September 2018. This study only analyzed the nutrient content contained in the finished compost consisting of five compost treatments, namely: A0 = Chicken manure decomposed by T.viride for 0 weeks, A1 = chicken manure decomposed by T. viride for 1 week, A2 = chicken manure decomposed by T. viride for 2 weeks, A3 = chicken manure decomposed by T. viride for 3 weeks, A4 = chicken manure decomposed by T. viride for 4 weeks. Of the five compost treatments then analyzed the nutrient content which includes N, P, K Total in the Laboratory of Soil Science ANDALAS Padang West Sumatra. The results showed that based on the results of laboratory analysis it can be known that compost with the addition of good trichodermaviride decomposer is good by 4 weeks of storage (A4) i.e. organic B = 45.70 %, organic C = 91.03 , Ratio C / N = 11. 13 %, N Total = 3.51 %, P Total = 3.41 % , K Total = 1.58 %.
Keanekaragaman Serangga pada Tanaman Aren (Arenga pinnata) di Habitat Hutan Sekunder dan Lahan Pertanian Siti Hardianti Wahyuni; Meiliana Friska; Surya Handayani; Jumaria Nasution; Cindy Febriany Batubara
JUSTER : Jurnal Sains dan Terapan Vol. 5 No. 2 (2026): JUSTER: Jurnal Sains dan Terapan
Publisher : Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/juster.v5i2.2794

Abstract

Penelitian ini bertujuan mengkaji distribusi dan kelimpahan serangga yang berasosiasi dengan tanaman aren (Arenga pinnata) pada habitat lahan pertanian dan hutan sekunder di Desa Ulumamis, Kabupaten Tapanuli Selatan. Penelitian dilakukan menggunakan metode survei lapangan dengan teknik purposive sampling pada empat pohon aren produktif. Pengambilan data selama tujuh hari menggunakan perangkap feromon dan light trap. Hasil penelitian menunjukkan bahwa total serangga yang tertangkap sebanyak 738 individu yang tergolong dalam tujuh ordo, dengan Hymenoptera dan Coleoptera sebagai kelompok dominan. Keanekaragaman serangga pada hutan sekunder (H’ = 2,31) lebih tinggi dibandingkan lahan pertanian (H’ = 1,97), sedangkan indeks kemiripan komunitas sebesar 0,56 menunjukkan tingkat kesamaan sedang. Hasil ini mengindikasikan bahwa struktur vegetasi dan aktivitas manusia memengaruhi komunitas serangga, serta menegaskan pentingnya hutan sekunder dalam mendukung konservasi serangga fungsional dan keberlanjutan agroekosistem.
Respon Tanaman Padi Hitam Cempo Ireng Aplikasi Pupuk Organik pada Fase Generatif Jumaria Nasution; Surya Handayani; Meiliana Friska; Siti Hardianti Wahyuni
JUSTER : Jurnal Sains dan Terapan Vol. 5 No. 2 (2026): JUSTER: Jurnal Sains dan Terapan
Publisher : Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/juster.v5i2.2849

Abstract

Cempo Ireng merupakan varietas padi hitam lokal unggulan yang kaya akan antosianin dan antioksidan, namun sering terkendala oleh rendahnya prouksi serta siklus hidup yang panjang. Penelitian ini bertujuan untuk mengevaluasi efektivitas berbagai dosis pupuk organik dalam meningkatkan respon fase generatif pada padi Cempo Ireng pada. Penelitian ini dilakukan di Desa Pintupadang dengan menggunakan Rancangan Acak Kelompok (RAK) yang terdiri atas empat taraf perlakuan: K0 (kontrol), K1 (100 g), K2 (200 g), dan K3 (300 g) per tanaman perlakuan dengan tiga ulangan. Parameter yang diukur meliputi umur berbunga, panjang malai, dan berat gabah 100 butir. Hasil penelitian menunjukkan bahwa pemberian pupuk organik berpengaruh nyata terhadap seluruh Pmempercepat fase generatif  hasil tanaman perlakuan K3 300 g tanaman memberikan respons terbaik pada umur berbunga, umur panen, panjang malai, dan berat gabah 100 butir dibandingkan perlakuan lainnya. Pada penelitian ini menunjukkan bahwa pupuk organik berpotensi meningkatkan efisiensi pemanfaatan hara dan mendukung pertumbuhan dan  fase generative pada padi hitam  cempo ireng  lebih optimal. Oleh karena itu, aplikasi pupuk organik dapat direkomendasikan sebagai salah satu strategi budidaya untuk meningkatkan produksi padi hitam Cempo Ireng secara berkelanjutan.
Co-Authors Abdul Rahman Suleman Akhiruddin Pulungan Cindy Febriany Batubara Dini Puspita Yanti Nst Dini Puspita Yanti Nst Dini Puspita Yanty Dini Puspita Yanty Doharni Edison Purba Harahap, Darmadi Erwin Harahap, Parmanoan Hasanuddin Hasanuddin Jumaria Jumaria Nasution Jumaria Nasution Maulana, Mizan Meiliana Friska Muhammad Darwis Muhammad Noor Hasan Siregar Muharram Muharram Fajrin Harahap Paisal Henri Hasibuan Parmanoan Rizky Amnah Sriwinaty Harahap Surya Handayani Surya Handayani Syamsul Arifin Tanjung, Yulia Windi Wardi Siregar Zulpan Efendi Nasution