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All Journal Jurnal Keteknikan Pertanian Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Dampak Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Hilirisasi IPTEKS (JHI) Jurnal Teknologi Pertanian Andalas Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Andalasian International Journal of Agricultural and Natural Sciences Journal of Applied Agricultural Science and Technology
Rusnam Rusnam
Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Dentistry Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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TRANSFORMASI DATA HUJAN – DEBIT MENGGUNAKAN MODEL GR2M PADA DAS AIR DINGIN Nika Rahma Yanti; Rusnam Rusnam
Jurnal Teknologi Pertanian Andalas Vol 24, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.24.2.202-209.2020

Abstract

Pengelolaan sumberdaya air untuk masa yang akan datang sangat berkaitan dengan ketersediaan data. Terdapat beberapa model hidrologi yang telah dikembangkan untuk kegiatan pengelolaan DAS, salah satu model yang bisa digunakan adalah model GR2M. Penelitian ini bertujuan untuk melihat sensitivitas DAS Air Dingin terhadap perubahan curah hujan yang terjadi menggunakan model GR2M. Variabel utama yang dibutuhkan pada model ini adalah data curah hujan dan data evapotranspirasi. Penelitian ini dilaksanakan pada DAS Air Dingin dengan outlet debit yang tersedia pada DAS Air Dingin. Tahapan awal dalam pelaksanaan penelitian ini yakninya pengolahan data curah hujan,, evapotranspirasi bulanan, lalu penentuan parameter X1 (kapasitas simpanan kelembaban tanah) dan X2 (koefisien penyerapan air tanah), dilanjutkan tahapan kalibrasi serta validasi model. Hasil penelitian menunjukan pada tahapan kalibrasi diperoleh hasil koefisien deterministik (R2) sebesar 0,7 dan koefisien efisiensi model Nash (Q) sebesar 0,71 sehingga model GR2M mampu mempresentasikan DAS Air Dingin dengan kriteria memuaskan.
ANALISIS DEBIT PADA DAS AIR DINGIN MENGGUNAKAN MODEL SWAT Nika Rahma Yanti; Rusnam Rusnam; Eri Gas Ekaputra
Jurnal Teknologi Pertanian Andalas Vol 21, No 2 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (586.793 KB) | DOI: 10.25077/jtpa.21.2.127-137.2017

Abstract

Perubahan penggunaan lahan dari lahan bervegetasi ke non vegetasi mengakibatkan besarnya limpasan (run off) sehingga debit menjadi meningkat terutama pada musim hujan. Penelitian ini dilakukan untuk menganalisis debit pada DAS Air Dingin menggunakan model SWAT dan apakah model SWAT dapat diterapkan dalam mempresentasikan debit pada DAS Air Dingin. Model SWAT memerlukan data iklim, peta dan data tanah, curah hujan, kelerengan dan peta penggunaan lahan. Adapun tahapan yang dilakukan yaitu penyiapan data dan peta, deliniasi DAS, pembentukan HRU, simulasi visualisasi, kalibrasi, dan simulasi dengan model SWAT terkalibrasi. Debit DAS Air Dingin berkisar antara 3 – 30 m3/s. Setelah dilakukan kalibrasi model SWAT dapat mempresentasikan keadaan hidrologi DAS Air Dingin dengan R2 0,76 dan NS 0,64 sehingga model SWAT yang dijalankan dapat dikategorikan memuaskan.
Optimization of the Carbonization Parameter of Exhausted Coffee Husk (ECH) as Biochar for Pb and Cu Removal Based on Energy Consumption Aninda Puari; Rusnam Rusnam; Nika Rahma Yanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.242-252

Abstract

Recent studies on agricultural waste as a potential precursor of biochar for heavy metals removal from aqueous solution had not considered exhausted coffee husk (ECH) as the potential one. It is well-known that the carbonization process influences the removal performance of biochar, particularly removal efficiency (RE). However, previous studies rarely considered the energy consumption during the carbonization process. The major objective of this study is to investigate the optimum carbonization parameter on ECH biochar for removal of ion Pb and Cu from economic stand point. The ECH biochar was produced at the different heating temperature (300 – 600°C) and heating time (30 – 120 minutes). In regard to specific cost of bio-sorption, the results showed that 500°C was the optimum heating temperature of ECH biochar for the Pb removal, while 600°C was the optimum one for the Cu removal. Furthermore, the heating time experimental outcomes suggested that the optimum heating time were 30 minutes for Pb removal and 120 minutes done Cu removal.  Key words: Biochar, carbonization temperature, carbonization time, exhausted coffee husk, specific energy cost
Rice Productivity Estimation Using Remote Sensing Method Delvi Yanti; Imelda Safitri; Rusnam Rusnam; Eri Stiyanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 3 (2022): September 2022
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i3.451-465

Abstract

The calculation of crop productivity has now been facilitated by technological development using remote sensing technology or data generated by satellites. Determining the value of productivity using images will shorten the time and does not require much effort. A remote sensing model that connects satellite image reflectance data with rice plant parameters will be handy for monitoring biomass growth and predicting crop yields more quickly and efficiently. This study aimed to determine the regression equation to estimate the productivity of regional rice in Harau District, Lima Puluh Kota Regency. This study consisted of several stages: data collection, data processing, and calculation of rice productivity, NDVI regression analysis with rice productivity, and Nash-Sutcliffe Efficiency (NSE) test against the obtained equations. The regression equation obtained from the results of data analysis to estimate rice productivity in Harau District, Lima Puluh Kota Regency is y = - 82152x4 + 208465x3 - 197654x2 + 82986x - 13014, with an NSE value of 0.64 which is categorized as ‘sufficient’.Keywords: MODIS, NDVI, Rice, Remote sensing; Productivity
ANALISIS FASE TUMBUH PADI KECAMATAN SUNGAI TARAB MENGGUNAKAN NDVI (NORMALIZED DIFFERENCE VEGETATION INDEX) Delvi Yanti; Wine Angelina Putri; Rusnam Rusnam
Jurnal Teknologi Pertanian Andalas Vol 26, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.26.2.228-238.2022

Abstract

Pada daerah yang luas biasanya terdapat kesulitan dalam memantau fase tumbuh tanaman padi. Seiring dengan berkembangnya teknologi, salah satu alternatif yang dapat dilakukan untuk memperoleh data tersebut adalah dengan menggunakan citra satelit. Fase tumbuh tanaman padi dapat diketahui dengan menghitung indeks vegetasi berdasarkan tingkat kehijauan tanaman dengan bantuan citra MODIS menggunakan algoritma NDVI. Tujuan dari penelitian ini adalah menentukan persamaan dan rentang nilai NDVI untuk memprediksi tahap pertumbuhan padi di Kecamatan Sungai Tarab Kabupaten Tanah Datar. Dalam pengambilan data, pengamatan lapangan dilakukan pada lokasi dengan pixel ≥50% adalah sawah. Pengamatan dilakukan untuk validasi koordinat lokasi sampel pengamtan, kesesuaian data penggunaan lahan, umur tanaman padi, dan varietas padi. Dari hasil analisis, persamaan yang diperoleh untuk memprediksi fase tumbuh tanaman padi Kecamatan Sungai Tarab yaitu y = -0.0001011274 x2 + 0.0128987956 x + 0.3189628155 dimana nilai x adalah umur tanaman (HST) dan y adalah nilai indeks vegetasi (NDVI).  Rentang nilai NDVI berdasarkan fase tumbuh adalah fase air ≤ 0,4797; fase vegetatif 1 0,4797-0,6149; fase vegetatif 2 0,6149-0,7300; fase generatif 1 0,7300-0,6379; fase generatif 2 0,6379-0,5142 dan fase bera 0,5142-0,2868
Estimation of Rice Productivity Using The Normalized Difference Vegetation Index (NDVI) Algorithm (Case Study of Gunung Talang District, Solok Regency) Delvi Yanti; Khoirunnisa S; Rusnam; Eri Stiyanto
Jurnal Keteknikan Pertanian Vol. 10 No. 3 (2022): Desember 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.3.240-252

Abstract

Rice productivity is closely related to rice harvested area and cropping intensity. Remote sensing technology using MODIS MOD13A1 v006 image produces Normalized Difference Vegetation Index (NDVI) values that can be interpreted in analyzing the value of rice productivity. Gunung Talang District has a rice field area of 3,369 m2, which is one of the central rice areas in West Sumatra Province. This study aimed to determine the regression equation to estimate rice productivity in Gunung Talang District, Solok Regency using the NDVI algorithm. The NDVI data used to generate the regression equation was taken in the generative phase. From the results of data analysis, the regression equation for estimating rice productivity in Talang District, Solok Regency is y = 250.33x4 - 1493.3x3 + 2293.6x2 - 1353.9x + 281.13, where x is the NDVI value and y is the productivity value (ton ha-1). The test results of the model's validity are expressed in the value of NSE (Nash-Sutcliffe Efficiency) is 0.66, which is categorized as adequate.
Relationship of Tree Architecture on Canopy Throughfall and Stem Flow in The Upstream of Batang Mahat River Basin Lima Puluh Kota Regency Indonesia Reni Ekawaty; Yonariza Yonariza; Eri Gas Ekaputra; Ardinis Arbain; Rusnam Rusnam
Journal of Applied Agricultural Science and Technology Vol. 7 No. 1 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i1.85

Abstract

A study about the effect of tree architecture on canopy throughfall and stem flow was conducted upstream of Batang Mahat River Basin, Lima Puluh Kota Regency, West Sumatra, Indonesia. Four dominant tree species in the location, Voacanga foetida, Guioa sp, Schima wallichii and Rhodoleia champonii, were selected and represented in architecture by Scarrone, Schoute, Rauh and Leeuwenberg, respectively. Furthermore, the sample was three trees of each species. The throughfall canopy was measured using a 1 x 1 m plastic plot placed at the edge, while the stem flow was calculated by two meters plastic tube with a five-litre tank at the bottom. These data were collected eight times over one month. The study aimed to the analyzed relationship between tree architecture and canopy throughfall and stem flow upstream of the Batang Mahat River Basin. The result showed that Schima wallichii differed significantly in throughfall canopy relative to the other three species. Additionally, V. foetida significantly differed in stem flow compared to the other tree species. There was no correlation between throughfall canopy, stem flow and precipitation, but the two parameters were affected by three architectures. These findings are useful for soil and water conservation in the upper Mahat River Basin.
Rancang Bangun Hidroponik Dengan Bantuan Pompa Bertenaga Surya Fikri Dinegoro; Rusnam Rusnam; Eri Gas Ekaputra
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.367-379

Abstract

Agriculture traditionally still uses large areas of land with relatively large amounts of water. The application of solar energy is one of the uses of new and renewable energy. This research uses a 50 Wp photovoltaic cell, battery, solar charge controller, DC stepdown, DC pump and hydroponic frame. The stages of the research are the design of the tools, the calculation of the power required by the tools, the manufacture of the tools, the collection of data and the analysis of the data. The data collected is temperature, sunlight intensity, electric power, electrical energy, water discharge, and photovoltaic efficiency. The data were processed and analyzed in an exploratory manner. Based on the results of the research conducted, the lowest average temperature was 25.33 C and the highest was 33.70 C with the highest average light intensity of 920.26 w/m2 at 12.00 WIB. The relationship between temperature and light intensity with a value of R2 of 0.7594. The highest average electrical energy obtained by polycrystalline is 30.44Wh. The water lost from the hydroponic system is 0.03%. The efficiency of photovoltaic cells is 10.09%–15.72%.         Keywords:  DC pump, hydroponics, light intensity, photovoltaic
ANALISIS KESESUAIAN LAHAN TANAMAN UBI KAYU (Manihot esculenta C.) DENGAN METODE GROWING DEGREE DAYS Delvi Yanti; Nadiyatus Shalihah; Imelda Safitri; Rusnam Rusnam
Jurnal Teknologi Pertanian Andalas Vol 27, No 2 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.27.2.185-209.2023

Abstract

Tujuan dari penelitian adalah menentukan tingkat kesesuaian lahan tanaman ubi kayu di Provinsi Sumatera Barat berbasis Growing Degree Days (GDD) secara spasial dan temporal. Parameter yang digunakan yaitu curah hujan, kelerengan, penggunaan lahan, tekstur tanah, dan pH tanah. Semua parameter dikelompokkan menjadi satu atribut dengan cara overlay menggunakan aplikasi ArcGIS, kemudian dilakukan pembandingan (matching) dengan syarat tumbuh tanaman ubi kayu untuk kesesuaian lahan, dan dilanjutkan dengan pemberian scoring. Analisis dilanjutkan dengan menentukan nilai Growing Degree Days (GDD) pada setiap titik pengamatan masing-masing skenario waktu tanam yang diolah menggunakan data suhu. Skenario waktu tanam yang digunakan pada penelitian ini sebanyak 12 skenario waktu tanam. Hasil penelitian menunjukkan Provinsi Sumatera Barat memiliki lahan yang potensial untuk pengembangan tanaman ubi kayu, kelas sangat sesuai (S1) seluas 879.921,97 Ha dan kelas sesuai (S2) seluas 1.437.152,41 (39,92%). Waktu tanam yang paling optimal untuk tanaman ubi kayu berdasarkan nilai GDD untuk wilayah Sumatera Barat yaitu pada bulan Oktober. Kabupaten Lima Puluh Kota, Pasaman, Pasaman Barat, Pesisir Selatan, dan Solok Selatan memiliki potensi yang tinggi untuk dilakukan pengembangan tanaman ubi kayu karena pada wilayah ini memiliki kecocokan pada lahan (sangat sesuai) S1 dan sesuai (S2) yang luas (> 200.000 ha), serta niai GDD wilayahnya sesuai dengan nilai GDD untuk ubi kayu.
Distribution of Levels of Suitability of Land Characteristics and Growing Degree Days (GDD) for Corn (Zea mays L.) in West Sumatra Yanti, Delvi; Sari, Elsa Novita; Safitri, Imelda; Rusnam, Rusnam
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 12 No. 1 (2024): April 2024
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2024.012.01.03

Abstract

The decline in corn production is influenced by several factors, one of which is the suitability of land characteristics. This research analyses land characteristics' suitability and GDD for West Sumatra Province corn crops. The suitability of land characteristics is studied by combining the suitability of land characteristics with the GDD value in the area. The suitability of land characteristics is determined by matching plant growth requirements and land characteristics. The parameters used to determine the suitability of land characteristics are land use, slope, soil pH, soil texture and rainfall. GDD suitability by matching the accumulated daily temperature data during one growing season to the optimal GDD value for corn plant growth. This research created 12 planting time scenarios, and the analysis was carried out based on Regency/city administrative areas in the West Sumatra region. The analysis results obtained a suitable land area based on land characteristics and GDD values, namely an area of 1,206,079.48 ha with a planting season of December-March. Areas in West Sumatra Province with great potential for corn crop development are Lima Puluh Kota Regency, Pasaman Regency, Sijunjung Regency, South Solok Regency, and Tanah Datar Regency.
Co-Authors Aninda T. Puari Anthoni Agustien Ardinis Arbain Arlius, Feri Awalina, Rahmi Berliana Larasati Chairul Chairul Deswati Deswati Efrizal Efrizal Efrizal Efrizal Ekaputra, Eri Gas Eri Stiyanto Feri Arlius Ferry Lismanto Syaiful Fikri Dinegoro Frisca Lora Amalya Hendri Gustian Imelda Safitri Junaidy, Iqbal Tri Khoirunnisa S Muhammad Makky Nadiyatus Shalihah Nika R. Yanti Nika Rahma Yanti Nurmala Sari Dewi Nurmiati Nurmiati Nurmiati Nurmiati Pramana Illahi, Fajar Setyawan Reni Ekawaty Revalin Herdianto Rio Valery Allen Safitri, Imelda Sari, Elsa Novita Surya, Ridho Adi Suwirmen, Suwirmen Wine Angelina Putri Yanti, Delvi Yonariza Yonariza Zakaria, Indra Junadi Zuhri Syam Zuhri Syam