cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Muhammad Dhafir
Contact Email
m_dhafir20012@usk.ac.id
Phone
+628116810529
Journal Mail Official
jronatp@usk.ac.id
Editorial Address
Jalan. Tgk. Hasan Krueng Kalee, No. 3 Kopelma Darussalam-Banda Aceh
Location
Kab. aceh besar,
Aceh
INDONESIA
Rona Teknik Pertanian
Published by Universitas Syiah Kuala
ISSN : 20852614     EISSN : 25282654     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Engineering
JRTP is the official journal from the Department of Agricultural Engineering, Faculty of Agriculture, Syiah Kuala University (Unsyiah), Banda Aceh-Indonesia. It covers and devotes a complete and interdisciplinary wide range of research and review in engineering applications for agriculture and biosystems: agricultural machinery, soil and water engineering, tillage, precision farming, post-harvest technology, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, audit energy, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, farm work systems, mechanized farming and ergonomi.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 207 Documents
 1   2   3   4   5 
Pemanfaatan Daun Biduri (Calotropis Gigantea) Sebagai Perekat Pada Pembuatan Briket Serbuk Gergaji Kayu Bayur (Pterospermum Javanicum) Dedy Eko Rahmanto; Esma Hadi Fitroni; Bayu Rudiyanto
Rona Teknik Pertanian Vol 13, No 1 (2020): Volume 13, No. 1, April 2020
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v13i1.16092

Abstract

Abstrak. Kayu bayur banyak digunakan untuk pembuatan bahan baku furnitur yang menghasilkan limbah serbuk gergaji. Kayu bayur memiliki nilai kalor sebesar 4.452,01 kal/gr, kadar abu 1,04% dan kadar air 19,29%. Serbuk gergaji kayu bayur ini sangat berpotensi digunakan sebagai bahan pembuatan briket dengan penambahan perekat.  Bahan yang bisa digunakan sebagai pengganti perekat tepung tapioka adalah daun tanaman biduri. Tanaman biduri memiliki kandungan kimia seperti selulosa, pentosan sebagai hemiselulosa, lignin, abu, tanin 9,1mg/g dan pektin 55%. Pembuatan briket dengan perekat daun biduri bertujuan untuk mengetahui bagaimana pengaruh berbagai variasi perekat, dan bagaimana karakteristik briket yang dihasilkan. Penelitian yang telah dilakukan mendapatkan hasil bahwa dari variasi kadar perekat 35%, 40%, dan 45% pada briket terbaik yaitu pada variasi ke BB3 diaman 55% (30 g) arang serbuk gergaji kayu bayur dengan 45% (24,5 g) perekat daun biduri dan karakteristiknya mencapai nilai SNI briket No.1/6235/2000. Pada perlakuan ini nilai yang diperoleh yaitu untuk kadar air 1,8%, kadar abu 7,42%, densitas 0,4235 g/cm3, nilai kalor 5.069,589 kal/g, dan uji tekan 4,0538 kg/cm2.The Use of Leaves Biduri (Calotropis Gigantea) as Adhesives to Making Briquettes Sawdust Wood Bayur (Pterospermum Javanicum)Abstract. Bayur wood is widely used for manufacturing furniture raw materials that produce sawdust waste. Bayur wood has a calorific value of 4,452.01 cal/g, ash content of 1.04% and a moisture content of 19.29%. This bayur wood sawdust is very potential to be used as a briquette making material by adding adhesive to the briquetting process. Material that can be used as a substitute for tapioca flour adhesive is the leaves of the biduri plant. Betell plants have chemical properties like cellulose, pentatosan as hemicellulose, lignin, as, tannin 9.1 mg/g and pectin 55%. The making of briquettes with biduri leaf adhesive aims to find out how the influence of various variation of the adhesive, and how the characteristics of the briquettes produced. The research that has been carried out shows that the variation of 35%, 40%, and 45% adhesive content in the best briquettes is in the variation to BB3 where 55% (30 g) chacrcoal of sawdust with 45% (24.5 g) of adhesive biduri leaves and their characteristics reach to SNI briquettes No.1/6235/2000. In this treatment the values obtained are for water content of 1.8%, ash content of 7.42%, density 0.4235 g/cm3, calorific value of 5,069.589 cal/g, and pressure test of 4.0538 kg/cm2.
Analisis Sudut Lempar Gabah Pada Mesin Pembersihan Gabah Dengan Media Aliran Udara Suhendra Suhendra; Budi Setiawan
Rona Teknik Pertanian Vol 8, No 1 (2015): Volume 8, No. 1, April 2015
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v8i1.2685

Abstract

Abstrak. Penanganan pasca panen padi merupakan salah satu upaya untuk meningkatkan produksi padi, dengan semaksimal mungkin menekan kehilangan hasil panen. Salah satu faktor yang mempengaruhi kehilangan hasil panen padi adalah proses pembersihan gabah. Berdasarkan hal tersebut, diperlukan suatu upaya untuk mendapatkan proses pembersihan gabah yang optimal dengan cara menganalisis variabel yang berpengaruh pada proses pembersihan gabah. Penelitian ini bertujuan untuk menghasilkan suatu persamaan matematika untuk memprediksi besar sudut lempar gabah, mengetahui hubungan antar variabel yang mempengaruhi proses pembersihan gabah secara mekanis serta untuk mendapatkan variabel yang diperlukan dalam rancang bangun mesin pembersih gabah dengan media pembersih berupa aliran udara. Melalui pendekatan analisis dimensi diperoleh persamaan prediksi sudut lempar gabah (θ) sebagai fungsi dari bulk density gabah (ρ), diameter saluran udara (D), laju aliran udara (V), kapasitas (Kp), diameter gabah (d), kadar air gabah (α) serta jarak saluran udara dan gabah jatuh (l) yaitu :       θ = 0,0661.(ρ.d^2.V/Kp)^0,643 . (dxα/t)^0,0618Hasil validasi persamaan prediksi sudut lempar gabah menunjukkan bahwa hasil prediksi tidak berbeda nyata dengan hasil observasi sehingga persamaan prediksi yang dibuat dapat diterima. Hasil simulasi persamaan prediksi menunjukkan bahwa diameter saluran udara dan jarak saluran udara saat gabah jatuh memiliki pengaruh tetapi tidak signifikan terhadap besarnya sudut lempar gabah, sedangkan laju aliran udara dan kapasitas memiliki pengaruh yang signifikan terhadap besarnya sudut lempar gabah. Throw Angle Analysis of Grain on Grain Cleaning Machine With Air FlowAbstract. Post-harvest handling of rice is one of the efforts to increase rice production, with maximum pressing crop yield loss. One of the factors that influence the loss of the harvest is the process of cleaning of the grain. Based on this, we need an effort to obtain optimal grain cleaning process by analyzing the variables that affect in the grain cleaning process. This research aims to produce a mathematical equation to predict the large grain throwing angle, determine the relationship between the variables that affect in the mechanical cleaning process grain and to obtain the necessary variables in the design of grain cleaning machine with cleaning media in the form of air flow. Through the dimensional analysis approach derived prediction equations throwing grain angle (θ) as a function of grain bulk density (ρ), the diameter of the airways (D), the air flow rate (V), capacity (Kp), grain diameter (d), water content grain (α) and distance airways and grain fall (l), namely:θ = 0,0661.(ρ.d^2.V/Kp)^0,643 . (dxα/t)^0,0618The result of prediction equation from grain throwing angle show that prediction result is not different significant with observation result. Simulation result of prediction equation show that the diameter  of airways and distance airways when grain fall has influence but not significant on the value of  grain throwing angle, whereas the air flow rate and capacity has significant influence on the value of  grain throwing angle.
Phosphate Potential from Septic Tank in Surabaya City, Indonesia Ghina Rizqina Ersa; Eddy Setiadi Soedjono; Agus Slamet; Ervin Nurhayati
Rona Teknik Pertanian Vol 16, No 1 (2023): Volume No. 16, No. 1, April 2023
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v16i1.30556

Abstract

AbstractPhosphate scarcity will occur if humans do not currently manage the phosphates available in nature with good management. Phosphorus rocks are a natural source of phosphates, whose availability in nature is dwindling due to the large demand for phosphates in the world, especially in agriculture. It is necessary to launch a renewal that involves the recovery of phosphates from fecal sludge. Fecal sludge contains a lot of nutrients that have accumulated from the food we eat. Due to the lack of sewage system distribution in Indonesia, phosphate recovery uses septic tank sludge that has been transported to the Fecal Sludge Treatment Plant. This is one of the potential resources. The purpose of this study was to see the potential (presence) of phosphates in domestic wastewater in Surabaya City, Indonesia. This research was carried out by accidental sampling and the measurement of total phosphate using a spectrophotometer, according to the APHA Method 45001-P standard. The initial characteristics of the sample consisted of liquid phases and solids that were brownish-black and smelly. The phosphate levels in fecal sludge are between 110.42 mg/L and 4572.64 mg/L, with an average value of 1016.77 mg/L. AbstrakKelangkaan fosfat terjadi jika manusia saat ini tidak mengelola fosfat yang tersedia di alam dengan baik. Batuan fosfor adalah sumber fosfat alami, yang ketersediaannya di alam berkurang akibat besarnya permintaan fosfat di dunia, terutama di bidang pertanian. Sehingga diperlukan suatu inovasi baru yang melibatkan recovery fosfat dari lumpur tinja. Lumpur tinja mengandung banyak nutrisi yang terakumulasi dari makanan yang dikonsumsinya. Selain itu, dengan rendahnya sistem pengelolaan air limbah di Indonesia, recovery fosfat dapt dilakukan menggunakan lumpur tinja dari tangki septik yang telah diangkut ke Instalasi Pengolahan Lumpur Tinja (IPLT). Hal ini merupakan salah satu sumber daya yang potensial. Tujuan dari penelitian ini adalah untuk mengukur potensi (keberadaan) fosfat dalam air limbah domestik di Kota Surabaya, Indonesia. Penelitian ini dilakukan dengan pengambilan sampel secara accidental sampling dan pengukuran total fosfat menggunakan spektrofotometer, sesuai standar APHA Metode 45001-P. Karakteristik awal sampel terdiri dari fase cair dan padatan yang berwarna hitam kecoklatan dan berbau. Konsentrasi fosfat dalam lumpur tinja berkisar antara 110,42 mg/L dan 4572,64 mg/L, dengan nilai rata-rata sebesar 1016,77 mg/L. 
Analisis Karakteristik Hidrologi DAS Krueng Aceh, Provinsi Aceh (Studi Kasus Sub DAS Krueng Jreu dan Sub DAS Krueng Khea) Darwin Darwin; Syahrul Syahrul; Hairul Basri
Rona Teknik Pertanian Vol 14, No 1 (2021): Volume 14, No.1, April 2021
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v14i1.21606

Abstract

Abstrak. Perilaku air (hidrologi) sungai dalam suatu DAS dipengaruhi oleh penggunaan lahan sebagai akibat adanya aktivitas manusia. DAS Krueng Aceh merupakan salah satu DAS yang terdapat di Provinsi Aceh menjadi sumber air utama bagi penduduk Kota Banda Aceh dan Kabupaten Aceh Besar di Provinsi Aceh. Luasan tutupan lahan berupa hutan primer saat ini semakin berkurang luasannya. Penelitian ini bertujuan menganalisis karakteristik hidrologi Sub DAS Krueng Jreu dan Krueng Khea di DAS Krueng Aceh dan pengaruhnya dengan perubahan tutupan lahan. Hasil pengolahan data diperoleh bahwa limpasan permukaan tertinggi pada Sub DAS Krueng Jreu terjadi sebesar 2.178,3 mm/bulan yaitu pada bulan Januari tahun 2015 dan limpasan terendah terjadi pada bulan Maret tahun 2014 yaitu sebesar 1 mm/bulan. Sedangkan pada Sub DAS Krueng Khea limpasan permukaan terbesar yaitu 204 mm/bulan yang terjadi pada bulan Juli tahun 2015 sedangkan limpasan terkecil sebesar 4,9 mm/bulan yang terjadi pada bulan Agustus  tahun 2018. Tidak terjadi perubahan penutupan lahan yang signifikan pada kedua Sub DAS dari tahun 2014 sampai dengan 2018.Analysis of Hydrological Characteristics of the Krueng Aceh Watershed, Aceh Province (Case Study of the Krueng Jreu and Krueng Khea sub-watersheds)Abstract. The behavior of river water (hydrology) in a watershed is not only influenced by land use as a result of human activities. Krueng Aceh watershed is one of the watersheds in Aceh Province. The watershed is the main water source for residents of Banda Aceh City and Aceh Besar District in Aceh Province. The condition of land cover in the form of primary forest is currently decreasing in area. This study aims to analyze the hydrological characteristics of the Krueng Jreu and Krueng Khea watersheds in the Krueng Aceh watershed and their effect on land cover changes. From the results of data processing, it was found that the highest surface runoff in the Krueng Jreu watershed occurred at 2,178.3 mm/month in January 2015 and the lowest runoff occurred in March 2014 at 1 mm/month. While in the Krueng Khea Sub-watershed the largest surface runoff was 204 mm/month which occurred in July 2015 while the smallest runoff was 4.9 mm/month which occurred in August 2018. There was no significant change in land cover in the two sub-watersheds from 2014 to 2018.
Pembuatan Mi Kering Komposit Rumput Laut Labu Kuning Sebagai Pangan Fungsional Hotman Manurung; Rosnawyta Simanjuntak; Yossi A. Pakpahan; Samse Pandiangan
Rona Teknik Pertanian Vol 12, No 2 (2019): Volume 12, No. 2, Oktober 2019
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v12i2.14717

Abstract

Pembuatan mi kering komposit bertujuan untuk meningkatkan nilai gizi mi terutama komponen pangan fungsional dengan melakukan subtitusi sebagian tepung terigu dengan tepung rumput laut dan tepung labu kuning.Penelitian dilakukan dengan tiga tahap. Tahap ke 1 pembuatan tepung rumput laut dan tepung labu kuning.Tahap ke 2 pembuatan mi kering komposit, dan tahap ke 3 analisis kimia, dan uji fisik mi kering.Metode percobaan menggunakan rancangan acak lengkap dengan perlakuan perbandingan (%)  tepung rumput laut dan tepung labu kuning yang terdiri  atas 4 taraf (t=4): P0= 30:0; P1= 20:10: P2= 10:20; dan P3=0:30. Dilakukan dengan 3 ulangan.Tepung rumput laut dan tepung labu kuning mengandung komponen pangan fungsional (iodium, serat, dan karoten) masing-masing 27,05 ppm, 5,65%, dan 12,32 ppm pada tepung rumput laut dan 0,10 ppm, 9,69%, dan 397,20 ppm pada tepung labu kuning. Iodium dan karotenoid pada tepung terigu tidak terdeteksi, sedangkan serat hanya 0,29%. Komposisi kimia mi kering adalah:  air 6,75-7,99%; protein 7,32-11,24%; iodium 0,03-7,39 ppm; serat 1,01-2,11%; dan karoten 1,69-80,25 ppm. Waktu optimum pemasakan rata-rata 3,50 menit dan KPAP antara 14,42-20,72. Mi yang memenuhi SNI 01-2974-1996 adalah mi kering R10L20 dan R0L30. Mi R10L20 dapat dijadikan makanan fungsional karena sangat potensial sebagai sumber karoten dan sumber iodium.Making Composite Dry Noodles Of Seaweed (E.Cottonii)  Pumpkin Flour (Cucurbita moschata)  as  Functional Food Composite dry noodle-making aims to improve the nutritional value of noodles, particularly functional food components by performing partial substitution of wheat flour with seaweed and wheat flour pumpkin. Research carried out by three stages. The first stage is to manufacture seaweed flour and flour pumpkin. The second stage is to make dry noodle by using seaweed flour and flour pumpkin as the wheat substituer and third stage is to analyze the component of dry noodle. Methods of experimental research with completely randomized design with treatment ratio (%) for seaweed flour and flour pumpkin which consisting of 4 levels (t = 4).  R30L0 = 30: 0; R20L10 = 20:10: R10L20 = 10:20; and R0L30 = 0: 30. It is done with three time repetitions.Flour seaweed and flour pumpkin contain functional food components (iodine, fiber, and carotenoids) respectively 27.05 ppm, 5.65%, and 12.32 ppm in flour seaweed and 0.10 ppm, 9.69%, and 397.20 ppm in flour pumpkin. Iodine and carotenoid of rice flour undetected, and the fiber was only 0.29%.The chemical compositions of dry noodles are:,6.75-7.99% moisture content; protein content of 7,32-11,24%; 0.03 -7.39 ppm iodine content; 1.01-2.11% crude fiber; and 1.69-80.25 ppm carotene.The optimum cooking time is average of 3.50 minutes and KPAP between 14.42-20.72%. Noodles that meet SNI 01-2974-1996 are R10L20 and R0L30 dry noodles. The noodles  R10L20 is very potential as a source of carotene and iodine.  
Analisis Kualitas Sauerkraut (Asinan Jerman) dari Kol (Brassica oleracea) selama Fermentasi dengan Variasi Konsentrasi Garam Rahmah Hayati; Rahmat Fadhil; Raida Agustina
Rona Teknik Pertanian Vol 10, No 2 (2017): Volume 10, No. 2, Oktober 2017
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v10i2.8937

Abstract

Quality Analysis of Sauerkraut (Pickle of German) from Cabbage (Brassica oleracea) during Fermentation with Salt Concentration VariatioAbstract. Cabbage (Brassica oleracea) is a vegetable that many contain vitamin, carbohydrate, protein and mineral. Cabbage has a limited storage age because the high water content so easily damaged and not durable. Cabbage can be preservedby fermentation process into sauerkraut (pickle of German) to produce with especially characteristic flavor and taste. The research aims to analysis of quality sauerkraut with salt concentration variation during fermentation. Parameters analysed was physical characteristic, chemical analysisand organoleptic test. The value obtained is processed using analysis of variance (ANOVA) at a significant levelP0,05. The factor tested is salt concentration variation composed for2,25% (Control), 2,5%, 7,5% and 12,5%. This research result is indicated of sauerkraut, there are the best experiment is the salt concentration of 2,5% and 2,25%. The mean of value salt concentration of 2,25% is weight loss 20,75%, pH 3,56; TSS 7,75%, vitamin C 7,41 mg/100gr, water content 90,93%, activity water (Aw) 0,245 and lactid acid 0,0096%. While the mean of value salt concentration of 2,5% is weight loss 20,05%, pH3,69; TSS 7,55%, vitamin C 13,15 mg/100gr, water content 92,104%, Aw 0,245 and lactid acid 0,0095%. Saltconcentration variation in sauerkraut found to be significant on TSS, weight loss, water content, lactid acid, flavor, color, taste, texture and overall acceptance of sauerkraut. But it has non-significant on pH, vitamin C andAw sauerkraut. Based in organoleptic test result all experiment sauerkraut interested by Panelists is the product concentraced sauerkraut of 2,25% and 2,5%. 
Perbandingan Efektivitas Bacillus thuringiensis dengan Teknologi Ozon dalam pengendalian hama Spodoptera litura pada daun cabai (Capsicum annum) Sutriono Sutriono; Intan Zahar
Rona Teknik Pertanian Vol 15, No 2 (2022): Volume No. 15, No. 2, Oktober 2022
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v15i2.28350

Abstract

Abstrak. Hama ulat grayak (S. litura) merupakan salah satu hama yang menyebabkan daun berlubang tidak beraturan, sehingga mengganggu proses fotosintesis sehingga mengurangi produksi tanaman cabai sehingga perlu dilakukan penanganan hama. Tujuan dari penelitian untuk melihat perbandingan efektivitas B. thuringiensis dengan teknologi ozon yang dibangkitkan melalui reaktor Dielectric Barier Discharge Plasma dalam mengendalikan S. litura pada daun cabai di laboratorium.Metode penelitian terdiri dari beberapa tahapan yaitu (1) Pemeliharaan larva S. litura (2) Perlakuan dan Pengujian Ozon terhadap S. litura (3) Pengujian Toksisitas Isolat Bt terhadap S. litura. Parameter penelitian ini tentang mortalitas (%), dan perubahan persentase populasi (%). Perlakuan pemberian Bacillus thuringiensis sangat efektif dalam mengendalikan Spodoptera litura, hal ini terlihat pada 1 hari setelah aplikasi (HSA) sudah tampak hama ulat yang mortalitas (kematian), sedangkan perlakuan ozon mortalitas S. litura baru tampak pada 3 hari setelah aplikasi (HSA).  Hasil penurunan jumlah hama S. litura pada aplikasi bakteri B. thuringiensis lebih cepat di hari ke 4 hari setelah aplikasi (HSA) yaitu 0 persentase ulat yang hidup, sedangkan perlakuan ozon sampai hari ke 10 HSA masih tersisa 20 % hama S. litura.Comparison of the Effectiveness of Bacillus thuringiensis with Ozone Technology in Spodoptera litura pest control in chili leaf (Capsicum annum)Abstract. The armyworm pest (S. litura) is one of the pests that causes irregular perforated leaves, thus disrupting the photosynthesis process thereby reducing the production of chili plants so that pest management is necessary. The purpose of this study was to compare the effectiveness of B. thuringiensis with ozone technology generated through the Dielectric Barrier Discharge Plasma reactor in controlling S. litura on chili leaves in the laboratory. The research method consisted of several stages, namely (1) Maintenance of S. litura larvae (2) Ozone treatment and testing of S. litura (3) Toxicity testing of Bt isolates against S. litura.The results of this study will reveal about mortality (%),and change in population percentage (%). The treatment with Bacillus thuringiensis was very effective in controlling Spodoptera litura, it was seen 1 day after application (HSA) the caterpillar pests showed mortality (death), while the ozone treatment of mortality of S. litura only appeared 3 days after application (HSA). The results of the decrease in the number of S. litura pests on the application of B. thuringiensis bacteria were faster on the 4th day after application (HSA), namely 0 percentage of live caterpillars, while the ozone treatment until the 10th day of DSA still remained 20% of S. litura pests.
Analisis Evapotranspirasi dengan Menggunakan Metode Thornthwaite, Blaney Criddle, Hargreaves, dan Radiasi Juanda Wirawan; M Idkham; Susi Chairani
Rona Teknik Pertanian Vol 6, No 2 (2013): Volume 6, No. 2, Oktober 2013
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v6i2.20429

Abstract

Abstrak. Penelitian ini bertujuan untuk menganalisis evapotranspirasi dengan menggunakan beberapa metode yaitu metode Thornthwaite, Blaney Criddle, Hargreaves, dan Radiasi. Data klimatologi diambil dari dua stasiun yang berbeda, yaitu BMKG Blang Bintang dan Stasiun Klimatologi Indrapuri, Kab. Aceh Besar. Dari hasil penelitian diperoleh bahwa evapotranspirasi potensial (Eto) menunjukkan Eto yang terdapat pada BMKG Blang Bintang lebih tinggi dari pada Stasiun Klimatologi Indrapuri. Perbedaan hasil perhitungan Eto yang terjadi pada setiap metode dipengaruhi oleh data-data iklim yang dipakai. Nilai evapotranspirasi potensial (Eto)yang tertinggi diperoleh dengan menggunakan metode Thornthwaite dan yang terendah dengan menggunakan metode Radiasi. Suhu, curah hujan, radiasi matahari, kecepatan angin, kelembaban udara, tekanan udara, dan lama penyinaran matahari adalah faktor-faktor yang sangat mempengaruhi proses evapotranspirasi potensial. Beberapa metode yang aplikatif untuk menghitung evapotranspirasi.Abstract. The aim of this research is to analyze the evaporation using several methods, such as: Thornthwaite, Blaney Criddle, Hargreaves, and Radiation. Climatology data were taken from two climatological stations: Board of Meteorological, Climatology, and Geophysics of Blang Bintang and Climatology Station of Indrapuri in Aceh Besar District. The results showed that potential evapotranspiration (Eto) in Blang Bintang was higher than the potential evapotranspiration in Indrapuri. The differences of potential evapotranspiration occurred due to different methods used in the calculation. The highest potential evapotranspiration (Eto) obtained using Thornthwaite method and the lowest potential evapotranspiration (Eto) obtained using Radiation method. Temperature, precipitation, solar radiation, wind speed, moisture, air pressure, and the length of solar radiation were the factors that influenced the process of potential evapotranspiration (Eto). Several applicable methods in calculating the potential evapotranspiration (Eto) in Blang Bintang  and Indrapuri were Blaney Criddle, Hargreaves and Radiation methods.
Daya Dukung Lahan Sawah Sebagai Kemandirian Pangan Di Kecamatan Tinangkung Selatan Hidayat Arismunandar Katili; Armelia Sambayo; Herwin Yatim; Sariani Sariani; Dian Puspapratiwi
Rona Teknik Pertanian Vol 16, No 2 (2023): Volume No. 16, No. 2, Oktober 2023
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v16i2.30918

Abstract

Abstrak. Peningkatan kebutuhan pangan saat ini sejalan dengan pertumbuhan penduduk, yang secara otomatis menuntut pencapaian ketahanan pangan harus terpenuhi sebagai wujud dari kemandirian pangan di setiap wilayah. sehingga tujuan penelitian ini dilakukan untuk mengetahui daya dukung lahan padi sawah dalam melaksanakan swasembada pangan untuk kehidupan masyarakat yang layak di Kecamatan Tinangkung Selatan. Penelitian ini dilaksanakan pada bulan Juli sampai November 2022, dengan menggunakan data primer dan data sekunder. Data primer dilakukan untuk menentukan kesesuaian lahan sawah dengan metode perbandingan (matching) dan data sekunder digunakan untuk menentukan daya dukung lahan sawah di Kecamatan Tinangkung Selatan. Adapun hasil analisis kesesuaian lahan padi sawah aktual diperoleh kriteria marginal (S3), dengan faktor pembatas kandungan KB tanah dan C-organik yang tergolong rendah, serta yakni kandungan P2O5 dan N-total yang tergolong rendah hingga sangat rendah. Namun, setelah dilakukan upaya perbaikan pada lahan sawah di Kecamatan Tinangkung Selatan diperoleh kesesuaian lahan padi sawah potensial yakni kriteria sangat sesuai (S1). Selanjutnya penetuan daya dukung wilayah pertanian untuk tanaman padi sawah di Kecamatan Tinangkung Selatan diperoleh hasil (ℓ 1), wilayah tersebut tidak mampu melaksanakan swasembada pangan. Artinya, padi sawah belum memenuhi kebutuhan masyarakat sebagai kemandirian pangan di Kecamatan Tinangkung Selatan di Kabupaten Banggai Kepulauan. Carrying Capacity of Paddy Fields as Food Independence in South Tinangkung DistrictAbstract. The current increase in food needs is in line with population growth, which automatically demands that the achievement of food security must be met as a form of food independence in each region. so, the purpose of this study was to determine the carrying capacity of paddy fields in carrying out food self-sufficiency for the decent life of the community in South Tinangkung District. This research was conducted from July to November 2022, using primary data and secondary data. Primary data was carried out to determine the suitability of paddy fields using the matching method and secondary data was used to determine the carrying capacity of paddy fields in South Tinangkung District. The results of the analysis of the suitability of actual paddy rice fields obtained marginal criteria (S3), with limiting factors for soil KB and C-organic content which are relatively low, and namely the content of P2O5 and N-total which are classified as low to very low. However, after carrying out efforts to improve paddy fields in South Tinangkung District, the suitability of potential paddy rice fields was obtained, namely the very appropriate criteria (S1). Furthermore, the determination of the carrying capacity of the agricultural area for paddy rice crops in South Tinangkung District obtained results (ℓ 1), but the area was unable to carry out food self-sufficiency. This means that paddy rice has not met the needs of the community as food independence in South Tinangkung District in Banggai Islands Regency. 
Penggunaan Metode Pemupukan Awal Broadcast Incorporated Menggunakan Mesin Tanam Terintegrasi Dan Pengaruhnya Pada Fase Awal Pertumbuhan Tanaman Jagung Agustami Sitorus
Rona Teknik Pertanian Vol 11, No 2 (2018): Volume 11, No. 2, Oktober 2018
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v11i2.13587

Abstract

Abstract. Aplikasi penggunaan pupuk kimia pada pertanian yang belum tepat takaran, waktu, jenis dan tempat pemberiannya menjadi isu pencemaran lingkungan di dunia akhir dekade ini. Suatu metode pemupukan yang lebih presisi dan efisien terus dicari dan diteliti hingga saat ini. Metode penebaran pupuk di dalam tanah (broadcast incorporated) menjadi hal baru yang terus dikembangkan. Oleh karena itu, penelitian ini bertujuan untuk mengukur penyebaran pupuk hasil aplikasi metode pemupukan broadcast incorporated sebagai pupuk awal (starter) untuk budidaya jagung. Aplikasi pemupukan awal menggunakan mesin penanam dan pemupuk jagung terintegrasi yang telah dikembangkan pada penelitian sebelumnya. Untuk mengetahui dampak penggunaan metode pemupukan dan mesin tersebut dilakukan pengamatan terhadap 20 tanaman jagung. Pengamatan dilakukan hingga 14 hari setelah tanam (HST) terhadap tinggi dan jumlah daun yang muncul dari benih jagung hibrida dan jagung manis. Metode tanam yang digunakan adalah jajar legowo dengan 1-3 benih per lubang tanam dan jarak antar tanamannya adalah ± 20 cm. Sebuah kotak persegi berukuran panjang, lebar dan tinggi masing-masing 15 cm, 15 cm, dan 15 cm didesain sebagai peralatan untuk pengambilan sample. Wadah tersebut diberi sekat setiap 5 cm sehingga terdapat 27 ruang dalam kotak tersebut. Jenis pupuk yang digunakan adalah NPK dengan distribusi ukuran butiran 2.36 mm - 4.76 mm sebanyak 81.20%. Dosis pemupukan yang diterapkan adalah 150 kg/ha atau 11.25 g/m alur tanam. Hasil penelitian menunjukkan bahwa pada semua sekat sampel ditemukan pupuk NPK dengan rata-rata 0.071±0.035 g. Hal ini mengindikasikan bahwa pupuk telah tercampur dan tersebar didalam tanah. Nilai coefficient of variation dari sebaran pupuk termasuk dalam klasifikasi sangat teracak atau tercampur. Hasil pengamatan menunjukkan bahwa parameter tinggi tanaman dan jumlah daun pada benih jagung hibrida dan jagung manis (14 HST) masing-masing adalah 11.9±2.6 cm, 3.85±0.4 daun, 10.7±2.3 cm, 3.4±0.5 daun. The Use Of Broadcast Incorporated As A Method Of Starter Fertilizers Using Integrated Corn Transplanter And The Effect On The First Phase Of Corn Growth Abstrak. The application of chemical fertilizers to agriculture that is not precisely measured, not on time, not suitable for the type and not ideal for the place becomes an issue of environmental pollution at the end of this decade. A more precise and efficient fertilization method is continually being search and investigation to date. The method of broadcast incorporated is a new thing that continues to be developed. Therefore, this study aims to measure the broadcast incorporated of fertilizers as a starter fertilizer for corn cultivation. The starter fertilizer application uses integrated corn growers and fertilizers which have been developed in previous studies. A total of 20 corn plants were observed to determine the impact of using the fertilization method and the machine. Observations were made up to 14 days after planting (DAP) on the height and number of leaves that emerged from hybrid corn seeds and sweet corn. The planting method used is jajar legowo with 1-3 seeds per planting hole, and the distance between plants is ± 20 cm. A container of length, width, and height of 15 cm, 15 cm, and 15 cm respectively is designed as equipment for sampling. The container is given an insulation every 5 cm so that there are 27 spaces in the box. The type of fertilizer used is NPK with a grain size distribution of 2.36 mm until 4.76 mm as much as 81.20%. The applied fertilizer dose is 150 kg/ha or 11.25 g / m planting groove. The results showed that in all sample partition NPK fertilizer was found with an average of 0.071±0.035 g. This indicates that the fertilizer has been mixed and spread in the soil. The value of the coefficient of variation from the distribution of fertilizers included in the classification is highly randomized or mixed. The results showed that the parameters of plant height and the number of leaves on hybrid corn seeds and sweet corn (14 DAP) were 11.9±2.6 cm, 3.85±0.4 leaves, 10.7±2.3 cm, 3.4±0.5 leaves, respectively.

Page 3 of 21 | Total Record : 207

 1   2   3   4   5 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol 18, No 2 (2025): Volume No. 18, No. 2, Oktober 2025 Vol 18, No 1 (2025): Volume No. 18, No. 1, April 2025 Vol 17, No 2 (2024): Volume No. 17, No. 2, Oktober 2024 Vol 17, No 1 (2024): Volume No. 17, No. 1, April 2024 Vol 16, No 2 (2023): Volume No. 16, No. 2, Oktober 2023 Vol 16, No 1 (2023): Volume No. 16, No. 1, April 2023 Vol 15, No 2 (2022): Volume No. 15, No. 2, Oktober 2022 Vol 15, No 1 (2022): Volume No. 15, No. 1, April 2022 Vol 14, No 2 (2021): Volume 14, No.2, Oktober 2021 Vol 14, No 1 (2021): Volume 14, No.1, April 2021 Vol 13, No 2 (2020): Volume 13, No. 2, Oktober 2020 Vol 13, No 1 (2020): Volume 13, No. 1, April 2020 Vol 12, No 2 (2019): Volume 12, No. 2, Oktober 2019 Vol 12, No 1 (2019): Volume 12, No. 1, April 2019 Vol 11, No 2 (2018): Volume 11, No. 2, Oktober 2018 Vol 11, No 1 (2018): Volume 11, No. 1, April 2018 Vol 10, No 2 (2017): Volume 10, No. 2, Oktober 2017 Vol 10, No 1 (2017): Volume 10, No. 1, April 2017 Vol 9, No 2 (2016): Volume 9, No. 2, Oktober 2016 Vol 9, No 1 (2016): Volume 9, No. 1, April 2016 Vol 8, No 2 (2015): Volume 8, No. 2, Oktober 2015 Vol 8, No 1 (2015): Volume 8, No. 1, April 2015 Vol 7, No 2 (2014): Volume 7, No. 2, Oktober 2014 Vol 7, No 1 (2014): Volume 7, No. 1, April 2014 Vol 6, No 2 (2013): Volume 6, No. 2, Oktober 2013 Vol 6, No 1 (2013): Volume 6, No. 1, April 2013 Vol 5, No 2 (2012): Volume 5, No. 2, Oktober 2012 Vol 4, No 1 (2012): Volume 4, No. 1, April 2012 More Issue