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All Journal Jurnal Keteknikan Pertanian Journal of Degraded and Mining Lands Management Jurnal Keteknikan Pertanian Tropis dan Biosistem Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat JURNAL PENGABDIAN KEPADA MASYARAKAT Informatika Pertanian Jurnal Irigasi Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Elipsoida : Jurnal Geodesi dan Geomatika Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Hilirisasi IPTEKS (JHI) Buletin Ilmiah Nagari Membangun Jurnal Teknologi Pertanian Andalas Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Andalasian International Journal of Applied Science, Engineering, and Technology AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Andalasian International Journal of Social and Entrepreneurial Development Rona Teknik Pertanian
Yanti, Delvi
Andalas University
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ANALISIS PERUBAHAN KARAKTERISTIK CURAH HUJAN DAN DAMPAKNYA TERHADAP MUSIM TANAM PADI DI KECAMATAN KOTO TANGAH KOTA PADANG Tjandra, M. Agita; Yanti, Delvi; Zawiyah
Jurnal Teknologi Pertanian Andalas Vol 29 No 2 (2025)
Publisher : Universitas Andalas

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

Abstract

Climate change affects rainfall patterns, causing shifts in the onset of seasons that impact water resource availability, thereby disrupting crop growth, yields and agricultural production. Rainfall variability, both spatially and temporally, can lead to changes in the planting and harvesting seasons of crops, which in turn affect the food security of a region. The objectives of this study were to identify rainfall characteristics in Koto Tangah District, identify the rice planting season in Koto Tangah District, and analyze the effect of changes in rainfall characteristics on the rice planting season in Koto Tangah District. The research employs a combination of quantitative and qualitative methods, presented in a descriptive and explanatory manner. The analysis to observe changes in rainfall characteristics was conducted over three periods: quarterly, semi-annualiy, and annually. The rainfall characteristics analyzed were minimun, maximum, average and total rainfall. After analyzing rainfall characteristics, changes in rainfall characteristics were integrated with the rice planting season in Koto Tangah District, Padang City. Based on the analysis results, it was conducted that there were changes in rainfall characteristics in Koto Tangah District, Padang City, however farmers did not use rainfall as the primary reference for determining the rice planting time. Koto Tangah District already has a good technical irrigation network, enabling it to provide water for rice fields throughout the year. In addition to being supported by good technical irrigation, Koto Tangah District has relatively high rainfall every year. Therefore, changes in rainfall characteristics do not affect the rice planting season in Koto Tangah District.
Analysis of Land Suitability for Superior Commodities in Nagari Lawang, Matur District, Agam Regency: Analisis Kesesuaian Lahan untuk Komoditas Unggulan di Nagari Lawang, Kecamatan Matur, Kabupaten Agam Nurdiyanto, Muhammad Rizki Dhani; Yanti, Delvi; Irsyad, Fadli; Stiyanto, Eri
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 13 No. 3 (2025): December 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

This research has been carried out to identify areas that were suitable for planting superior crops in Nagari Lawang, Matur District, Agam Regency. This research was conducted using the matching method and then was continued with scoring of the slope, rainfall, C-Organic, soil pH, and soil texture parameters. The obtained values ??were used to determine the classification of land suitability for sugar cane, corn, peanuts and shallots. Land with the potential for planting sugar cane, corn, peanuts, and shallots is land in the very suitable (S1) and suitable (S2) suitability classes. Several commodities can be planted on a piece of land depending on the suitability of the characteristics of the land to the conditions for growing plants. The results of the analysis show that the land in Nagari Lawang that is suitable for planting sugar cane is 380.23 ha (27.57%), corn is 380.23 ha (27.57%), peanuts is 362.57 ha (26.29%), and shallots is 380.23 ha (27.57%) of the total land area of ??Nagari Lawang. Nagari Lawang's land (2023) that has been planted (S1 and S2 classes) with sugar cane covers an area of ??184.26 ha, corn covers an area of ??2.6 ha, peanuts covers an area of ??2.09 ha, and shallots covers an area of ??0.12 ha. The potential for developing sugar cane is 195.97 ha, corn is 377.63 ha, peanuts is 360.48 ha and shallots is 380.11 ha, respectively.  
EDUKASI PEMBUATAN PETA POTENSI SEKTOR PERTANIAN BERBASIS PARTISIPATIF BAGI MASYARAKAT DI DESA BATU TANJUNG KOTA SAWAHLUNTO Fadli Irsyad; Delvi Yanti
BULETIN ILMIAH NAGARI MEMBANGUN Vol. 7 No. 2 (2024)
Publisher : LPPM (Institute for Research and Community Services) Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/bina.v7i2.582

Abstract

Batu Tanjung Village is located in Sawahlunto City, West Sumatra, which is better known as coal mines village. Therefore, its agricultural and livestock potential has not been developed and utilized optimally. Generally, the people work as farmers, however they do not know in detail about the potential of the agricultural and livestock sectors. This community service activity aimed to (1) explore the actual potential of the agricultural sector, and (2) mapping the potential of the agricultural sector on participatory base and GIS. The methods used in this activity were survey of agricultural potential, participatory mapping using the Participatory Rural Appraisal (PRA) method, SWOT analysis for developing strategies of agricultural and livestock sectors. The results of this activity show the superior potential of the village, namely rice (320 ha), rubber (76 ha), cocoa (9 ha), coconut (32 ha), and areca nut (35 ha). The potential for the food sector is almost evenly distributed in all hamlets in Batu Tanjung Village. Some of the leading potentials in the livestock sector in Batu Tanjung Village are buffalo (239), cows (141), purebred chickens (6264) and quail (996). The conclution of this activity shown the potential of the village's agricultural and plantation sectors, namely rice, corn, rubber, cocoa, areca nut and coconut which are spread throughout all hamlets in Batu Tanjung Village. The potential for the livestock sector are buffalo, cows and laying hens. Furthermore, this activity also produced a potential map of the agricultural, plantation and livestock sectors of Batu Tanjung Village with a scale of 1:120 and was submitted to the Head of Village.
Analysis Rice Field Drought Potential using the Standardized Precipitation Index (SPI) Method Rival Doli Yusman; Fadli Irsyad; Feri Arlius; Rizky Armei Saputra; Delvi Yanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.494-505

Abstract

Drought analysis can be used as an early warning of drought in rice fields, which can be identified by connecting various parameters. This study aims to identify the potential for rice fields vulnerable to drought in Agam Regency. Drought is primarily caused by uneven rainfall distribution, leading to imbalanced hydrological conditions. This study used the last 30 years of rainfall data (1993 2022) from five stations located at Agam Regency (Canduang and Gumarang) and the rest outside of the study area (Padang Panjang, Suliki, and Paraman Talang). Spatial analysis of drought distribution was carried out using the Inverse Distance Weighted (IDW) method. The results showed the consistency test value of rainfall data for all five stations was obtained with an average of R² with a value of 0.992, the potential area of rice fields with a dry and very dry category was 13,640.61 ha and 904.55 ha, respectively. The conclusions of this study are (i) the districts with the most potential to be affected by drought (dry and very dry categories) are Tilatang Kamang and Malalak District, with an area of 2,058.15 ha and 750.48 ha, respectively, (ii) it is important to prepare the water shortage in the dry season by utilizing rivers, irrigation and reservoirs in the area. Keywords: Agam Regency, Drought Potential, Rain, Rice Fields, SPI.
Land Use Scenario Simulation for Erosion Control Using the Universal Soil Loss Equation (USLE) Method in Nagari Lawang, Agam Regency Zawiyah Zawiyah; M. Agita Tjandra; Delvi Yanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.262-272

Abstract

Nagari Lawang is located in Agam Regency, West Sumatra, which is a nagari situated in the highlands with a slightly steep to very steep slope with the most types of land use in moors/fields. This can directly encourage erosion. This study aims to analyze the optimal land use pattern for reducing the rate of erosion in Nagari Lawang. The method used to calculate the erosion rate is the Universal Soil Loss Equation (USLE) and to obtain the optimal land use in reducing the erosion rate is a simulation with three scenarios. The results of the study showed that 47.29% of the Nagari Lawang land area was at an erosion rate above the tolerance erosion with the category of light to very heavy. Based on land use simulations, planning scenario III by allocating the use of shrubland into mixed gardens with planting according to contour lines and the use of shrub land into mixed forests is the best scenario because it can reduce erosion by 39.05% of the total erosion of Nagari Lawang. The reduction of erosion on the diverted land (moors/fields and shrubs) reached 45.83% of the existing condition, which was 2105.928 tons/ha/year. The best scenario land use can be used as a reference by policy makers and the community in determining appropriate land management actions in Nagari Lawang. Keywords: Erosion, Simulation, Land Use, USLE.
Determination of Superior Agricultural Commodity Areas Based on Historical Data and Land Suitability Alfina Zukhrifa; Fadli Irsyad; Delvi Yanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.701-713

Abstract

Analysis and identification of superior agricultural commodity areas play a crucial role in determining regions with high potential for agricultural development. This study aims to identify priority agricultural commodities and assess their development potential in Lawang, Matur District, Agam Regency, West Sumatra Province. The research was conducted in several stages. First, superior agricultural commodities were identified using the Location Quotient (LQ) and Shift Share Analysis (SSA) methods. Second, the potential development areas for these commodities were determined using the Analytical Hierarchy Process (AHP) and Weighted Linear Combination (WLC) approach, integrated with Geographic Information System (GIS) analysis. The results indicate that the priority agricultural commodities in Nagari Lawang are peanuts for the food crop subsector, shallots for the horticulture subsector, and sugarcane for the plantation subsector. These findings provide valuable information for policymakers and local farmers to optimize land use, enhance agricultural productivity, and support sustainable rural economic development. Furthemore, the methodology used in this study can also be applied to other regions to identify superior agricultural commodities.Keywords: Analytical hierarchy process, Leading commodities, Location quotient, Shift share analysis, Weight linear combination.
Analysis of Irrigation Modernization Readiness Using FAHP Method Berliana Larasati; Delvi Yanti; Rusnam Rusnam
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.437-447

Abstract

Irrigation modernization is a solution proposed to achieve an effective, efficient, and sustainable participatory irrigation management system. The purpose of this study was to measure the value of irrigation modernization readiness (IKMI) and determine the priority order of the Batang Anai Irrigation Area (IA). The IKMI method used 5 criteria for irrigation modernization (reliability of water supply, water and irrigation resource facilities and infrastructure, management of water and irrigation resources systems, water and irrigation resource management institutions, and human resources) and determines the priority order for modernization preparation using the Fuzzy Analytical Hierarchy Process method. Direct observation activities were carried out for the pillars of irrigation infrastructure and water availability, while interviews and questionnaires were used to assess management systems, management institutions, and human resources. The IKMI value 67.50 for the Batang Anai IA implies modernization is postponed, and irrigation system improvements can be carried out for 1-2 years. The priority order for irrigation modernization is water availability, management institutions, irrigation management, irrigation infrastructure, and human resources. Recommended actions for modernization readiness include checking the water supply system, normalizing irrigation channels, repairing damaged irrigation infrastructure, increasing farmer participation through socialization and training activities, and building synergy between irrigation managers. Keywords: FAHP, IKMI, Irrigation, Modernization, Sustainability.
Development of an NDRE-Based Nitrogen Uptake Estimation Model for Rice Using Sentinel-2 Imagery Muhammad Rizki Dhani Nurdiyanto; Delvi Yanti
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 2 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i2.1055

Abstract

Nitrogen availability is a critical factor influencing rice growth and productivity. Conventional methods such as Kjeldahl and SPAD are limited in spatial coverage, time efficiency, and operational costs. This study aims to develop a model for estimating rice nitrogen uptake from Sentinel-2 satellite imagery using the Normalised Difference Red Edge (NDRE) index. This study was conducted in Koto Tangah Regency, Padang City, Indonesia, at three rice growth stages: 7–12, 27–32, and 47–52 days after planting (DAP). NDRE values were derived from Sentinel-2 image processing, while actual leaf nitrogen content was measured using SPAD readings calibrated by the Kjeldahl method. The relationship between NDRE and leaf nitrogen content was modelled using linear, exponential, and quadratic regression. The results showed a significant relationship between NDRE and leaf nitrogen content at all growth stages, with a positive coefficient of determination (R²). The linear regression model performed better than the other tested models for estimating nitrogen uptake from Sentinel-2 imagery across all observed growth phases. The NSE values for the First Period (7-12 DAP) were 0.70, the Second Period (27-32 DAP) were 0.62, and the Third Period (47-52 DAP) were 0.74. A positive NSE value approaching 1 indicates improved model performance, allowing the model to continue representing the general trend of the relationships among the analysed variables. Contribution to Sustainable Development Goals (SDGs):SDG 2: Zero HungerSDG 12: Responsible Consumption and ProductionSDG 13: Climate ActionSDG 15: Life on LandSDG 9: Industry, Innovation and Infrastructure
Co-Authors - Andasuryani AI DARIAH Alfina Zukhrifa Aninda T. Puari Aninda Tifani Puari Arlius, Feri Awalina, Rahmi Berliana Larasati Choiruddin Batubara Deivy Andhika Permata Deni Saputra Ekaputra, Eri Gas Eri Stiyanto Fadli Irsyad Fadli Irsyad Fadli Nizam Pratama Ferdian Ariyadi Feri Arlius Fitri Mailani Handayani, Cicik Oktasari Harahap, Fitria Lestari Hasanah, Nadya Nur Imelda Safitri Imelda Safitri Irsyad, Fadly Islami, Syaifuddin Isril Berd Junaidy, Iqbal Tri Khoirunnisa S Lendrawati Lendrawati Lendrawati Lendrawati Mislaini Mislaini Mislaini Mislaini Mislaini Rahman Mohamad Solahudin Mohamad Yanuar Jawardi Purwanto Muhammad Rizki Dhani Nurdiyanto Nadiyatus Shalihah Naufal Ilhamdi Rozaaq Nika Rahma Yanti Nurdiyanto, M. Rizki Dhani Nurdiyanto, Muhammad Rizki Dhani Omil Chamyn Chatib Omil Charmyn Chatib Puari, Aninda Tifani Puari Rahmah Dewi Yustika, Rahmah Dewi Ramanda, Rian Renny Eka Putri, Renny Eka Rival Doli Yusman Rizky Armei Saputra Rozaaq, Naufal Ilhamdi Rusnam Rusnam Safitri, Imelda Santosa Santosa Saputra, Rizky Armei Sari, Elsa Novita Setyanto, Eri Shalihah, Nadiyatus Sukarjo Sukarjo, Sukarjo Syafii, Habibi Ahmad Tiara Aulia Putri Tineke Mandang Tjandra, M. Agita Tjandra, Moh. Agita Triyani Dewi Waldi Nurmansyah Wine Angelina Putri Yusman, Rival Doli Yustiawati, Yustiawati Zawiyah Zawiyah Zawiyah