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All Journal 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

Author-ID : 3715231

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

Published : 19 Documents Claim Missing Document

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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

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

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.

Water Stress Influence For Tomato (Solanum Lycopersicum) Production Rusnam Rusnam; Ridho Adi Surya; Muhammad Makky
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 2 No. 01 (2021): Andalasian International Journal of Agricultural and Natural Sciences
Publisher : Institute of Research And Community Service, Andalas University / LPPM Universitas Andalas

Tomato, also known as Solanum lycopersicum, is one of the horticultural commodities that have a good priority to be developed. Tomato production in Indonesia has decreased over five decades. This lack of production is caused by the limitation of water supply during the dry season as to effect of its rooting. One of the ways of ensuring water supply is using an irrigation system, including drip irrigation. The use of drip irrigation will save a lot of water, but the allocation of water to be given will cause to salinity. This phenomenon requires actions to control the water for tomato production. Research in this area is being carried out in the subdistrict of Lubuk Kilangan, Padang City. The current study observes the effect of salinity on the amount of leaf, the productivity, and the sweetness of the tomato fruit. Based on the results, the efficiency of drip irrigation is around 96.28%, and there is no real effect of salinity on the amount of leaf. Additionally, salinity does not affect productivity. The highest productivity is on the treatment of giving water at -15%, amounting to 2.30 kg, and the lowest is at -5%, amounting to 1.72%. Salinity increases the sweetness of tomato, and the highest sweetness level is on the treatment of giving water at -20%, amounting to 5.6600 Brix, and the lowest sweetness level is at the control treatment, amounting to 5.1100 Brix.

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

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

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

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

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

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

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

Application of Agro-industrial Solid Waste as Biochar for Iron (II) Removal from Aqueous Solution Rusnam Rusnam; Nika Rahma Yanti; Aninda Tifani Puari; Nurmala Sari
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.v13i1.155-164

In recent years, various industrial activities have introduced a high concentration of iron in the waterbody which causes serious problem to environment. This paper proposed the application of Exhausted Coffee Husk (ECH) as the biosorbent (BS) for removing iron (Fe) (II) in the aqueous solution. The ECH was carbonized into biochar before performing biosorption of the heavy metal ion. The effect of carbonization temperature, time and rate on the performance of the ECH biochar for removing Fe (II) were evaluated. The percentage of removal efficiency (RE) and the capacity of biosorption (mg/g) were considered as the determining parameters. The pyrolysis temperature was varied in a range of 200-600 °C with 50 °C of interval, while the time was in between 1h – 3h with a n interval of 0.5 h, and the temperature gradient of 5 – 25°C/min. The results showed that the temperature had a significant effect on the properties of the ECH biochar as BS for Fe (II). The temperature of 550 °C, at 1.5 h of time and 25 °C/min was chosen as the suggested carbonization temperature of biochar from ECH for biosorption of Fe (II). Keywords: Agro-industrial solid waste, Biosorption, Carbonization, Exhausted coffee husk (ECH), Heavy metal.

Co-Authors Aninda Tifani Puari Anthoni Agustien Ardinis Arbain Chairul Chairul Deswati Deswati Efrizal Efrizal Efrizal Efrizal Ekaputra, Eri Gas Eri Stiyanto Feri Arlius Ferry Lismanto Syaiful Fikri Dinegoro Hendri Gustian Imelda Safitri Junaidy, Iqbal Tri Muhammad Makky Nurmala Sari Nurmiati Nurmiati Nurmiati Nurmiati Rahma Yanti, Nika Reni Ekawaty Revalin Herdianto Ridho Adi Surya Rio Valery Allen Suwirmen, Suwirmen Wine Angelina Putri Yanti, Delvi Yonariza Yonariza Zakaria, Indra Junadi Zuhri Syam Zuhri Syam

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