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All Journal Jurnal BETA (Biosistem dan Teknik Pertanian) Jurnal Peternakan Tropika agriTECH Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Ni Nyoman Sulastri
Jurusan Teknologi Pangan Dan Hasil Pertanian, Fakultas Teknologi Pertanian, Universtas Gadjah Mada, Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Veterinary

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Design and Implementation of an IoT-Based Irrigation Management System for Alternate Wetting and Drying (AWD) Technique in Rice Cultivation Kusuma, I Nyoman Teguh Yudha; Budisanjaya, I Putu Gede; Sumiyati, Sumiyati; Nugroho, Andri Prima; Sulastri, Ni Nyoman; Tika, I Wayan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1256-1267

Abstract

Rice irrigation management is facing considerable challenges, particularly in improving water use efficiency. This study aimed to develop an irrigation management system integrating the Alternate Wetting and Drying (AWD) technique with Internet of Things (IoT) technology. The system was constructed using ESP32 microcontroller, TOF10120 distance sensor for water level monitoring, an SD card module for data logging, 20×4 I2C LCD for real-time display, an optocoupler relay module for system control, and DS3231 real-time clock for timekeeping. Remote monitoring and control were enabled via the Blynk platform. System design was conducted using AutoCAD software, circuit simulations were performed using the Wokwi platform, and field testing was implemented in a rice cultivation area in Tabanan, Bali. Water level measurements were obtained using the TOF10120 sensor, and measurement accuracy was evaluated using MAPE (Mean Absolute Percentage Error). The system operated using a 100 WP solar panel and battery, ensuring sustainable and autonomous functionality. Results demonstrated that the IoT-based AWD irrigation management system successfully automated irrigation scheduling according to crop water requirements, achieving a high accuracy with a MAPE of 3.83%. Integration with the Blynk platform provided real-time monitoring and remote control functionalities, offering farmers an effective and user-friendly tool for optimizing irrigation water management.   Keywords: Alternate Wetting and Drying (AWD), Automatic Irrigation System, Blynk platform, IoT, Irrigation management, Sensor.
Erosion Prediction and Soil and Water Conservation Scenario Using The SWAT Model Candra Dewi, Ni Luh Trisna; Sulastri, Ni Nyoman; Arya Arthawan, I Gusti Ketut; Ngadisih, Ngadisih
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.260-268

Abstract

Increasing population and development has resulted in inappropriate land use within watersheds that increase soil erosion. One of the hydrologic models that can be used to predict erosion and soil and water conservation in a watershed is SWAT. This research was conducted to predict erosion and the guidance of soil and water conservation in the Yeh Empas Watershed. This research was carried out in several stages, including data collection, data analysis and map validation using the ROC (receiver operating characteristic) and AUC (area under curve) methods. Results revealed that Yeh Empas Watershed had a very light EHL (erosion hazard level) category was found in the downstream area with an annual erosion value of 0 – 14.68 t/ha. In the middle area, the EHL was categorized as light with an erosion value of 15.44 – 57.22 t.ha-1.y-1. The upstream area has moderate EHL with a value of 65.20 – 178.64 t.ha-1.y-1. The validation of the EHL map using the ROC method showed a result of 0.83. This value was classified as very good. It can be concluded that SWAT predictions can be used in estimating erosion and soil and water conservation scenario to reduce 85% erosion. Keywords: Erosion prediction, Soil and water conservation scenario, SWAT models, Yeh Empas Watershed.
Increasing Physical Soil Quality by Using Rice Straw Biomass Sumiyati, Sumiyati; Tika, I Wayan; Sulastri, Ni Nyoman; Kinasih, Mentari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1006-1012

Abstract

Paddy straw as an agricultural waste can be returned to the soil to increase the organic matter content. This study aims to determine the optimum inoculant treatment of rice paddy straw on soil quality. The straw handling was carried out by spreading the straw on paddy fields and sprayed with four inoculant treatments (0, 3, 6, 9, and 12 L/ha). The incubation process was carried out for 21 days and incorporated in the soil through plowing. Each treatment was repeated three times so that the total treatment was 15 units. The variables observed in each treatment were soil quality. The soil quality parameters observed were particle density, bulk density, porosity, field capacity and pH. ANOVA statistical analysis which was continued by the Tukey HSD Post Hoc Test to determine the effect of treatment on soil quality. The results showed that the inoculant treatments showed a significant difference (p-value=0.05) in soil volume, density, and porosity. P4 gave the optimum results which are statistically not significantly different from P3. P4 shows the physical properties of the soil which consist of the soil bulk density of 0.61 g/cm3; particle density 1.74 g/cm3; porosity was 64.91%, and pH 6.68. The utilization of straw biomass as source of organic material contributes to zero waste rice cultivation. Keywords: Effective microorganisms, Rice straw, Soil density, Soil pH, Soil porosity. 
Co-Authors Ade Lanang Juliana Ananda Putra, Anak Agung Gede Anom Andri Prima Nugroho Apriliani, Luh Made Putri Arya Arthawan, I Gusti Ketut Candra Dewi, Ni Luh Trisna Dewi, Luh Wiwin Pradnya Dewi, Ni Luh Trisna Candra Empang, Fransiska Cahyani Harimurti, Gusti Bagus Dwi Anugrah I Gusti Ketut Arya Arthawan I Ketut Sumadi I M. Mudita I Made Anom Sutrisna Wijaya I Made Darmayasa I Made Nanda Suastika I Made Purnadiyasa I MADE SUPARTHA UTAMA I Nyoman Sucipta I P. A. Astawa I Putu Gede Budisanjaya I W. SUKANATA I Wayan Suryanantha I Wayan Tika I Wayan Tika I Wayan Widia I. A. G. Bintang Madrini Kusuma Tri Handayani, Ida Ayu Kusuma, I Nyoman Teguh Yudha Made Darmayasa Masakazu Kodaira Mentari Kinasih Mentari Kinasih Murtiningrum Murtiningrum Mus'ab Az Zubairi Ngadisih Ngadisih Ni Kadek Sintya Resmiani Ni Luh Yulianti Nyoman Yoga Pradana Putra, I Putu Arya Patrama Khrisna Rina Pratiwi Pudja I. A Sakae Shibusawa Samur, Gregorius Adelbertus Shelyn Gehle Sudiarta, I Made Sukma Elvayani, I Gusti Ayu Evi SUMIYATI SUMIYATI Sumiyati Sumiyati Sumiyati Sumiyati Ulianti, Gusti Ayu Putri Mei Wily Goldramijaya Wisnu Wardana Yohanes Setiyo