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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Vegetalika Bumi Lestari Jurnal AGROTEKNOLOGI LaGeografiA Bulletin of Electrical Engineering and Informatics JURNAL ILMU PERTANIAN Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) agriTECH Gontor AGROTECH Science Journal JURNAL AGRILAND Jurnal Ilmiah Pertanian Jurnal Pertanian Terpadu Agrin : Jurnal Penelitian Pertanian JMM (Jurnal Masyarakat Mandiri) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Indonesian Journal of Computing and Modeling Cakrawala Jurnal Penelitian Sosial Agroteknika Best Journal (Biology Education, Sains and Technology) JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Unram Journal of Community Service (UJCS) Jurnal DiMas (Jurnal Pengabdian Kepada Masyarakat) Warta LPM AGRIC West Science Agro
Bistok Hasiholan Simanjuntak
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Determination of the Vegetative Phase Critical for Monitoring Wheat Nitrogen Status Tropical Through Digital Color Analysis and Index Camera Reflectance Charlotte Putri Bandono; Bistok Hasiholan Simanjuntak
West Science Agro Vol. 4 No. 02 (2026): West Science Agro
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsa.v4i02.2802

Abstract

Reliable nitrogen (N) monitoring remains a major challenge in tropical wheat systems due to dynamic N uptake, redistribution, and environmental variability across growth stages. Although RGB based digital imaging offers a rapid and non-destructive alternative, its accuracy is often limited by the phase-dependent relationship between leaf color and nitrogen status. This study aimed to identify the critical vegetative stage that provides the most reliable estimation of leaf nitrogen in tropical wheat (Triticum aestivum L.). A greenhouse experiment was conducted using a randomized block design with five nitrogen rates (0–300 kg urea ha⁻¹). Leaf images were collected at four vegetative stages (V1–V4), and RGB values were transformed into vegetation indices (ExG, GLI, TGI, and NGRDI). These indices were correlated with chlorophyll and leaf nitrogen content using Pearson analysis. Results showed a clear phase-specific pattern, with the strongest relationship observed at V3 (second node emergence). The ExG index exhibited a very strong and significant correlation with leaf nitrogen (r = 0.97; p < 0.01). In contrast, weak correlations at V1 and negative trends at V4 were associated with limited nitrogen accumulation and remobilization processes.These findings highlight V3 as the optimal stage for nitrogen estimation and emphasize the importance of a phase-specific approach to improve RGB based monitoring in tropical wheat systems.
Arahan Sistem Pertanian Ideal Berbasis Potensi Sumberdaya Lahan: Komponen Dasar Cukilan Smart Village Andree Wijaya Setiawan; Bistok Hasiholan Simanjuntak; Yoga Aji Handoko; Yohanes Hendro Agus; Lasmono Trisunaryanto; Maria Maria; Adi Nugroho; Johan Jimmy Carter Tambotoh
Warta LPM WARTA LPM, Vol. 27, No. 2, Juli 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/warta.v27i2.4812

Abstract

In recent years, the concept of smart villages has gained increasing prominence as a means of encouraging sustainable development in rural areas. This is particularly relevant in the agricultural sector, where the potential of land resources is crucial. Cukilan Village, located in Suruh District, Semarang Regency, Central Java, is primarily an agricultural area, with over 80% of its land designated for agricultural purposes. The village government has expressed a desire to develop Cukilan as a smart village through an FGD process. Based on this background, a community service program was implemented with the aim of designing Cukilan Village as a smart village in stages, to enhance economic growth and prosperity by leveraging the potential of agricultural resources and human resources, as well as accelerating the village development process. The method for implementing this PKM (Community Service) program utilized the Assets-Based Community Development (ABCD) approach, which involved outreach, discussion, mapping of agroecological zones, as well as land suitability and evaluation. As a result of this initiative, the Cukilan Village government received guidance for an ideal agricultural system based on land resource potential, which serves as a basic component towards the realization of Cukilan Smart Village.
Pemberdayaan Kelompok Tani untuk Penguatan Manajemen Lahan dan Agribisnis Hortikultura di Desa Jeruk Kabupaten Boyolali Bistok Hasiholan Simanjuntak; Yoga Aji Handoko; Donna Setiawati; Priskilah Febi Widya Ningrum; Esther Sheliena; Alfred Jansen Sutrisno; Damara Dinda Nirmalasari Zebua; Dina Rotua Valentina Banjarnahor; Suprihati
JURPIKAT Vol 7 No 1 (2026): 7.1 2026
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v7i1.2866

Abstract

Jeruk Village, Selo Subdistrict, Boyolali Regency, is a highland agricultural area facing challenges such as sloping land erosion, low conservation knowledge, limited climate adaptation, and weak bargaining power of farmers. The Community Empowerment Program by Students (PMM) through Community Service Program (KKN) was implemented to empower the Bangun Tani 2 and Tani Mulyo 2 Farmer Groups by involving 32 Agrotechnology and Agribusiness students from Satya Wacana Christian University in September–October 2025. Activities included socialization, environmentally friendly technology training, mentoring, soil block making, biopesticide and biofertilizer production, education on sloping land conservation using terraced models, as well as post-harvest training and digital marketing. The evaluation showed an increase in farmers' understanding and skills based on pre-test and post-test scores. This program enhances farmers' independence, reduces dependence on external inputs, promotes product value addition, and expands market access through digital platforms, thereby potentially becoming a sustainable empowerment model for highland regions.
Co-Authors - Mustoyo - Susilawati Adi Nugroho Agus, Yohanes Hendro Alfred Jansen Sutrisno Andhika, Gideon Febby Prima Andree Wijaya Setiawan Anugraheni, Eliza Bangun, Yurin Bayu Nuswantara Charlotte Putri Bandono Christanto, Erwien Christina Ari Pramono Putri Damara Dinda Nirmalasari Zebua Dina Rotua Valentina Banjarnahor Djoko Murdono Donna Setiawati Endang Pudjihartati Eriandra Budhisurya Erik Kado Nugroho Girsang, Rian Gabriel Jatiningrum, Setia Humani Jawang, Uska Peku Jayanti, Malta Puspita Johan Jimmy Carter Tambotoh Lasmono Trisunaryanto Liska Simamora Manao, Nancy Felicia Maria Maria Maria Maria Maria Maria Maria Marina Herawati Muhammad Syaiful Afrizal Mustikasari, Rosita Naomi Endah Pratiwi Nikodemus Heru Prayuda Nugrahanto, Bernardinus Arga Nugraheni Widyawati P, Ratna Dewi Priskilah Febi Widya Ningrum Puas Andrew Alvianto Purnama, Dwi Juli Purwoko, Agus Putra, Imanuel Trisya R. C. W. Anggono Rejo Wagiman Rosita Mustikasari Roynaldo Kristi Saputra, Delfio Arga Savitri, Galuh Windi Sigar, Abner Darmawan Sri Hartini Sri Yulianto Joko Prasetyo Suprihati Susatyo, Yeremia Alfa Susetyo, Yefta Audy Theresa Dwi Kurnia Tinjung Mary Prihtanti Trias Budi Rahayu Velian Sandy Wardana Wagiman, Rejo Wiwin Sulistyo Yoga Aji Handoko Yoga, Feri Yohanes Hendro Agus Yohanes Hendro Agus Yuliawati Yusthian Hendra Mahardika Zai, Novice Enrich Zendrato, Yuniel Melvanolo