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All Journal Jurnal BETA (Biosistem dan Teknik Pertanian) 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

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Rancang Bangun Aplikasi Mobile Berbasis Kivy untuk Estimasi Biomassa Tanaman Microgreen: Design and Development of a Kivy Based Mobile Application for Microgreen Plant Biomass Estimation Nelson Titoes Atetamia Pinem; I Putu Gede Budisanjaya; Sumiyati Sumiyati; Ni Nyoman Sulastri
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 2 (2025): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2025.v13.i02.p14

Abstract

Biomassa merupakan indikator penting pertumbuhan tanaman, untuk memprediksi nilai biomassa dapat menggunakan indeks luas daun. Indeks Luas Daun (ILD) adalah variabel yang menunjukkan kondisi daun tanaman yang sangat mempengaruhi proses biofisik tanaman, terutama dalam proses fotosintesis dan penyerapan radiasi matahari. Microgreen merupakan sayuran hijau berukuran kecil yang mengandung sumber vitamin dan mineral yang tinggi. Penelitian ini bertujuan untuk merancang aplikasi mobile yang dapat mengestimasi nilai biomassa tanaman microgreen berbasis Kivy dan mendapatkan akurasi estimasi nilai biomassa yang telah dilakukan. Jenis microgreen yang digunakan pada penelitian ini adalah microgreen lobak, microgreen brokoli, dan microgreen pakcoy. Budidaya microgreen dilakukan sebanyak empat kali dengan teknik budidaya indoor menggunakan penyinaran LED pink. Budidaya I – III digunakan sebagai data latih dan Budidaya IV digunakan sebagai data uji. Aplikasi mobile estimasi biomassa tanaman microgreen dibuat dengan bahasa pemrograman Python, berbasis framework Kivy dan library OpenCV. ILD tanaman microgreen diperoleh dari proses pengolahan citra yang dirancang pada aplikasi. Perhitungan estimasi nilai biomassa tanaman microgreen pada aplikasi diperoleh dari persamaan regresi linier ILD dengan biomassa. Aplikasi mobile yang telah dirancang dalam mengestimasi biomassa microgreen diuji keakuratannya menggunakan metode Root Mean Square Error (RMSE). Persamaan regresi linier yang diperoleh yaitu y = 153.12x - 54.113 dengan koefisien determinasi sebesar 0,880 untuk biomassa basah dan y = 11.552x - 3.4614 dengan koefisien determinasi sebesar 0,585 untuk biomassa kering. Pengujian keakuratan aplikasi estimasi biomassa tanaman microgreen dengan menggunakan metode RMSE mendapatkan hasil yang baik. Diperoleh nilai RMSE yang cukup kecil yaitu 3,238 untuk estimasi biomassa basah dan 0,393 untuk estimasi biomassa kering.
Efisiensi Kinerja Traktor Singkal dan Traktor Rotari pada Pengolahan Tanah di Subak I Wayan Tika; Sumiyati; Ni Nyoman Sulastri; Ida Ayu Gede Bintang Madrini; Mentari Kinasih
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p02

Abstract

Before Subak farmers were familiar with tractors, land preparation was carried out using hoes or single-handed plows pulled by cattle. Land preparation with a tractor equipped with a complementary or rotary plow cannot be avoided in cases of overlap of processing results so that the processed soil results become inefficient. The overlapping results of the processing can be seen from the differences in the results of the processed soil. Based on these conditions, it is necessary to study the efficiency of tillage in Subak using single-axle tractors and rotary tractors in the first stage of tillage. Tractor work efficiency is measured based on a comparison between theoretical work and real work. Theoretical work is measured based on the width of the complement of the tiller, both short and rotary plows, and the average speed of the tractor's advance when cultivating the land. Real work is measured based on real work results in the field, namely the area ofland that has been successfully processed within a certain time span. Real work data was also confirmed based on the results of discussions with several tractor operators. From the results of the data analysis, it was obtained that the work efficiency of the short tractor was 77.3% and that of the rotary tractor was 55.2%.
Rancang Bangun Sistem Kontrol Kelembaban Udara Greenhouse Menggunakan PWM (Pulse Width Modulation) Wily Goldramijaya; Ni Nyoman Sulastri; I Made Anom S. Wijaya; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p17

Abstract

Control systems are widely applied in agriculture, such as using microcontrollers to control humidity in greenhouses. Lack of accuracy in conditioning the humidity in indoor farming affects plant growth and productivity, especially in microgreens. The humidity of the planting media indirectly affects the air humidity through evaporation. Therefore, a system is required to control and monitor air and planting media humidity. The purpose of this study was to design and build an air humidity control system using PWM (Pulse Width Modulation) in a greenhouse equipped with a monitoring and automatic irrigation system. The system control employed Arduino UNO ATmega328P as a microcontroller connected to the DHT22 sensor as an air humidity sensor, a capacitive soil moisture sensor as a humidity sensor for the planting media, relay to control misting and irrigation pump. The microcontroller was also connected to a driver as a DC fan control with PWM control, four DC fan as airflow suppliers and dehumidifiers, and LCD 16x2 as a monitoring system. The system used the air humidity setting points for microgreens which were entered manually through coding. The result of this research was a lean-to greenhouse prototype with a DHT22 sensor with air humidity error values of DHT22(1) 3.09% and DHT22(2) 3.34%. The system successfully read and displayed data and provided output with a response time of irrigation and misting systems of 78mS and 145mS, using a delay of 2 seconds. The PWM control of the DC fan was able to reduce and maintain the air humidity within the optimum range for microgreen growth by increasing as well as decreasing the DC fans’ RPM, which was based on its duty cycle value
Kerawanan Bencana Banjir di Kabupaten Gunungkidul Yogyakarta, Indonesia Ni Luh Trisna Candra Dewi; Ni Nyoman Sulastri; Ngadisih SulastrI; I Gusti Ketut Arya Arthawan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i01.p02

Abstract

Gunungkidul is one of the regencies in the Special Region of Yogyakarta. In 2020, Gunungkidul Regency experienced high rainfall intensity, which has the potential to cause flooding. This study aims to determine the potential level of flood vulnerability in Gunungkidul Regency and to create a flood vulnerability map. The analysis used a scoring and weighting method, assigning scores and weights to parameters such as rainfall, slope, elevation, soil type, and land use. The results show that Gunungkidul Regency has moderate rainfall ranging from 2,161 to 2,287 mm/year, covering 67,862.24 ha (45.69% of the area), flat slopes covering 50,037 ha (33.69%), elevations below 100 m covering 67,939.4 ha (53.48%), and Mediterranean soil covering 79,254.82 ha (53.37%). Land use is dominated by moorland, covering 56,228.93 ha (37.86%). Flood vulnerability was classified into three categories: approximately 62.58% of the area is low vulnerability, 35.51% is medium vulnerability, and 0.71% is high vulnerability.
Efisiensi Penggunaan Air Irigasi pada Saluran Sekunder di Daerah Irigasi Tungkub Mentari Kinasih; Ni Nyoman Sulastri; I Wayan Tika; Sumiyati Sumiyati; Ida Ayu Gede Bintang Madrini; Made Darmayasa
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p23

Abstract

Good distribution of irrigation water will produce abundant harvests. It will improve the welfare of farmers. The efficiency of water utilization is important in irrigation schemes because it determines the performance of the irrigation network. This research aims to obtain the efficiency of irrigation water in DI Tungkub in secondary channels. This research took direct debit data at 11 points in the secondary channel. Climate data was obtained from NASA POWER and BMKG Region III Denpasar. Rainfall data was obtained from 3 rain stations (Tibubeneng, Kapal, and Mengwi Gede). The area of rice fields observed was 416 Ha (Upstream), 349 Ha (Central), and 164 Ha (Downstream). The research results show that Zone A has the highest usage efficiency level of 68% which occurred in May I and the lowest 14.1% in March I. Zone B has the highest usage efficiency of 100% (occurring in the periods April I, April II, June II, and July I), and the lowest was 0% in the May I and May II periods. Zone C had the highest usage efficiency of 100% which occurred in June I and June II, while the lowest usage efficiency occurred in March I at 35%..
Analisis Kinerja Distribusi Air Irigasi pada Temuku di Subak I Wayan Tika; Mentari Kinasih; Ni Nyoman Sulastri; Sumiyati Sumiyati; Ida Ayu Gede Bintang Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p27

Abstract

Disturbances in water distribution are also sometimes caused by the presence of rubbish and biasing factors (decreased discharge) also ignoring the flow of numbak (straight flow) and ngerirun (curved flow). With this understanding, farmers (krama subak) whose land is located downstream tend to get less water quota than they should. This research aims to determine the performance of irrigation water distribution management according to RPM values and criteria in traditional subak and semi-technical Subak. This research uses a descriptive quantitative method that explains events based on the RPM values of 30 buildings for (temuku) in Subak in Gianyar Regency. The research results showed that 30% had very poor irrigation water distribution performance, 30% had poor performance criteria, 13% had sufficient performance criteria, and 27% had good performance criteria. From these results, it is also possible to obtain a new dimension of the subak building using a proportional formula approach involving variables of the area of the subak provided with irrigation water, the area of the subak downstream, as well as a water flow disturbance coefficient of around 1.05 to 1.1.
Karakteristik Parameter Pertumbuhan Microgreen Lobak (Raphanus sativus) pada Jenis Media Tanam dan Penggunaan Grow Light Mus’ab Az Zubairi; Ni Nyoman Sulastri; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p18

Abstract

Microgreen has the potential to be developed in urban farming systems because of the ease of obtaining planting media and tools to use and can be cultivated on a limited land space. Microgreen radish (Raphanus sativus) is an antioxidant that is good for health and acts as a source of polyphenols. This study aims to determine the growth characteristics of microgreen radish on the effect of variations in planting media and LED grow light and determine the treatment that produces the best growth. The experimental design used in this study was a completely randomized design (CRD) with two factors: the planting media and irradiation with a factorial pattern of 3 x 3 with three replications, so there were 27 treatments. The results showed no significant effect (P>0.05) between the growing media and grow light on several microgreen growth parameters. However, using grow light and sand media visually showed the best results in several growth parameters. The image acquisition on the whole microgreen planting tray is needed instead of randomly picking a single microgreen for analysis to get more accurate data in determining the effect of planting media and grow light on microgreen growth parameters.
Co-Authors Ade Lanang Juliana Ananda Putra, Anak Agung Gede Anom Apriliani, Luh Made Putri Arya Arthawan, I Gusti Ketut Candra Dewi, Ni Luh Trisna Debora Lydia Frida Tangkuman Dewi, Luh Wiwin Pradnya Dewi, Ni Luh Trisna Candra Empang, Fransiska Cahyani Harimurti, Gusti Bagus Dwi Anugrah I Gusti Ayu Evi Sukma Elvayani 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 Agus Arnadi I Putu Gede Budisanjaya I Putu Gede Budisanjaya I W. SUKANATA I Wayan Suryanantha I Wayan Tika I Wayan Tika I Wayan Widia I Wayan Widia I. A. G. Bintang Madrini Ida Ayu Gede Bintang Madrini Ida Ayu Kusuma Tri Handayani Ida Bagus Putu Gunadnya Irnando Ferdinand Fransiscus Silaban Kusuma Tri Handayani, Ida Ayu Luh Made Putri Apriliani Made Darmayasa Masakazu Kodaira Mentari Kinasih Mentari Kinasih Muhamad Khoiru Zaki Murtiningrum Murtiningrum Mus'ab Az Zubairi Mus’ab Az Zubairi Nelson Titoes Atetamia Pinem Ngadisih Ngadisih Ngadisih Ngadisih SulastrI Ni Kadek Sintya Resmiani Ni Luh Gede Enjelina Ayu Maheswari Ni Luh Trisna Candra Dewi Ni Luh Yulianti Ni Made Dwi Tunjung Febriyanti 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 Sumiyati Taruli Lasmaria Simanjuntak Ulianti, Gusti Ayu Putri Mei Vivi Alviyanti Wily Goldramijaya Wisnu Wardana Yohanes Setiyo Yohannes Radisman Parulian Aruan