Article Per Year (5 Year)
p-Index From 2021 - 2026
2.852
P-Index
This Author published in this journals
All Journal SOCA: Jurnal Sosial Ekonomi Pertanian Jurnal BETA (Biosistem dan Teknik Pertanian) Jurnal Ilmiah Teknologi Pertanian Agrotechno
Sumiyati Sumiyati
Program Studi Teknik Pertanian Dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering

Published : 36 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 36 Documents
Search

 1   2   3   4 
Stokiometri Karbon (C), Nitrogen (N) dan Fosfor (P) Tanah pada Pengelolaan Jerami dan Irigasi Sawah Vivi Alviyanti; Ni Nyoman Sulastri; Sumiyati Sumiyati; I Wayan Tika; Ngadisih
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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/j.beta.2025.v13.i01.p07

Abstract

Rice farming requires a sustainable management strategy to maintain soil quality and water use efficiency.The habit of burning straw and inundation irrigation that is predominantly used by farmers often reducessoil quality and nutrient balance. This study aimed to determine the dynamics of C:N:P stochiometry instraw management and irrigation management during one planting season and determine the best treatmentcombination for changes in C:N:P stochiometry. The study was conducted in Subak Suala, Bali, using arandom design complete with two factors: irrigation management (ngenyatin, inundation, and AlternatingWetting and Drying - AWD) and straw management (burning and planting straw). Data were obtainedthrough soil sampling on 30 treatment plots, tested in the laboratory and the results were analyzed usingthe two-way ANOVA test to evaluate the combination of irrigation treatment and hay management to theC:N:P ratio of soil. The Z test is used to determine the difference in the average ratio of CN, CP and NPbefore and after treatment. The results of the data analysis showed that the CN ratio ranged from 3.81–17.50 with the largest decrease (40%) in inundation irrigation and straw immersion. The CP ratio rangesfrom 8.83–47.16 and decreases more significantly (50%) in AWD irrigation and straw burning. The NPratio ranged from 0.75–4.77 with the largest decrease (46%) in AWD irrigation and straw burning, as wellas a small increase (5%) in ngenyatin irrigation and straw immersion. This study proves that strawimmersion is more effective in maintaining carbon and nitrogen balance than burning straw, while AWDirrigation systems are more optimal in maintaining the availability of phosphorus. A combination of strawplanting and an AWD irrigation system is recommended to support sustainable land productivity in Subak
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.
Pengaruh Saluran Aerasi pada Pengomposan Berbahan Baku Jerami I Wayan Budiarta; Sumiyati Sumiyati; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): 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.2017.v05.i01.p10

Abstract

Crop residues such as supreme variety rice straw can reach about 25 ton/ha which can be used as raw material for composting. The purpose of this research were to determine the effect of channels aeration of the composting process, and to find the compost quality produced from rice straw. Two treatments were conducted, namely: P1 : rice straw composting with aeration channel; P2 : rice straw composting without aeration channel. About 1.5 m long, 1 m wide and 1 m high of dimension of compost heap respectively were conducted. The parameters measured were temperature, humidity, water content, yield, pH, nitrogen, carbon and C/N ratio. The composting process lasted for 12 weeks. The composting process in the composting treatment with aeration channels tend to run slower than composting treatment without aeration channels. The quality of the compost produced from rice straw on the treatment P1 and P2 were appropriate the standard compost appointed by Peraturan Menteri Pertanian Nomor 70/Permentan/SR.140/10/2011.
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.
Pengaruh Jenis Wadah Terhadap Karakteristik Fisik dan Mutu Tomat (Lycopersicon Ensculentum Miller) dengan Simulasi Transportasi Darat Arya Iswardana Saputra; Ida Ayu Rina Pratiwi Pudja; Sumiyati Sumiyati
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.p28

Abstract

This study aims to determine the effect of the type of container (bamboo basket, plastic basket, and cardboard) on the physical characteristics and quality of tomatoes during the distribution process using ground transportation simulation. This study used a 2 factorial randomized block design (RBD) with 3 repetitions. The results of this study indicate that the maximal physical damage occurred in the bamboo basket container within 5 hours of treatment because the bamboo basket has rough sides and high porosity of 4.078% (physical damage in the form of increased scratches and bruises and decreased hardness). Minimal damage occurred in the cardboard container with a 1-hour treatment because it has a smooth coating of the container and not too high porosity, namely 3.960%. The best container to use in the tomato distribution process using a ground transportation simulation is a cardboard container (having low porosity the cardboard and a smooth container layer) so can be maintained the condition of the tomatoes.
Co-Authors Ali Husyain Sakti Anastasia Febriana Arya Iswardana Saputra Gede Arda I Gede Angga Artha Yoga I Gede Dumia Saputra I Gede Yudi Pradnyana I Ketut Suada I Ketut Suamba I Made Andika Dwi Trisna Wibawa I Made Andika Yasa Pramana I Made Anom Sutrisna Wijaya I Made Dwi Dharma Setiawan I Made Dwijantara Putra I Made Nada I Nyoman Sucipta I Putu Gede Budisanjaya I Putu Hendra I Putu Sanjaya I Putu Tantra Ardika I Wayan Adiguna I Wayan Budiarta I Wayan Budiarta I Wayan Tika I Wayan Tika I Wayan Widia I WAYAN WINDIA I. A. G. Bintang Madrini Ice Hera Widia Ida Ayu Rina Pratiwi Pudja Ida Bagus Putu Gunadnya Irfan Fadel Jarinsen Yanardo Purba Komang Adi Dipayana Made Darmayasa Made Pila Putra Mentari Kinasih Nelson Titoes Atetamia Pinem Ngadisih Ni Kadek Sri Arini Dharmayanti Ni Luh Yulianti Ni Nyoman Sulastri Ni Putu Yuliasih Pande Ketut Diah Kencana Pipit Safitri Ningsih Sri Handayani Nofiyanti Vivi Alviyanti Wayan Tika Widyalis Rani Tamara Yohanes Setiyo