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agriTECH

agritech
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Published by Universitas Gadjah Mada

ISSN : 02160455 EISSN : 25273825 DOI : 10.22146/agritech

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Agritech with registered number ISSN 0216-0455 (print) and ISSN 2527-3825 (online) is a scientific journal that publishes the results of research in the field of food and agricultural product technology, agricultural and bio-system engineering, and agroindustrial technology. This journal is published by Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta in colaboration with Indonesian Association of Food Technologies (PATPI).

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 1,392 Documents

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The Antiplatelet Aggregation Effect of Extract And Ethyl Acetate Fraction of Velvet Bean Seed (Mucuna pruriens L.) in Dyslipidemic Rat Wahyu Widowati; Hana Ratnawati; Udju Djunaedi Rusdi; Wahyu Winarno; Felix Kasim
agriTECH Vol 31, No 1 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Cardiovascular disease (CVD) is the first cause of death in the world, CVD has complex and multifactorial process including atherogenic lipoprotein, oxidized low density lipoprotein (LDL), endothelial dysfunction, plaque stability, vascular inflammation, thrombotic and fibrinolytic disorder, exercises and genetic factor. Inhibiting the platelet ag- gregation is one of the CVD prevention. Velvet bean seed (Mucuna pruriens L.) can be found abundantly in Indonesia, but has not been used as herbal medicine. Ethanol extract and ethyl acetate of velvet bean seed contain high flavonoids and antioxidants properties which is expected could inhibit platelet aggregation. The objectives of the research were to determine the activity of ethanol extract and ethyl acetate fraction of velvet bean seed towards clotting and bleeding time in dyslipidemic rats. This research used completely randomized design in dyslipidemic rats which were given by ethanol extract of velvet bean seed at the concentrations of 50, 100 and 200 mg/kg BW/day and ethyl acetate fraction of velvet bean seed at the concentrations of 15, 30 and 60 mg/kg BW/day and 42.2 mg/kg BW/day aspirin for ten days. Clotting and bleeding time were measured at days 0, 10, and 20. Data were analyzed using One way analysis of vari- ance and continued with Duncan’s post Hoc test with 95 % level of significancy. The results showed that administration of 60 mg/kg BW/day ethyl acetate fraction of velvet bean seed and at the concentrations of 100 and 200 mg/kg BW/ day ethanol extract of velvet bean seed, prolong the clotting time at day 10, ethyl acetate fraction at the concentration of 60 mg/kg BW/day, 200 mg/kg BW/day ethanol extract of velvet bean prolong bleeding time at day 10.

Studi Peningkatan Kinerja Manajemen Rantai Pasok Sayuran Dataran Tinggi di Jawa Barat Alim Setiawan S; Marimin Marimin; Yandra Arkeman; Faqih Udin
agriTECH Vol 31, No 1 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

A performance measurement model is a necessary tool for highland vegetables supply chain performance improve- ment in West Java. The performance measurement is conducted to support an objective planning, a performance evaluation, and determination of the future steps in strategical, tactical and operational levels. This study used system approach which is supported by Exponential Comparison Method (ECM) for the selection of superior products; the combination of the SCOR Model with the Fuzzy AHP to design performance metrics; the Data Envelopment Analy- sis (DEA) for performance measurement; and the SWOT analysis to formulate the strategy for increasing the supply chain performance. The result of the ECM showed three commodities with the highest value i.e. Papprica, Lettuce Head and Broccoli. The combined SCOR - Fuzzy AHP analysis produced the performance metric values as follows: delivery performance (0.111), compliance to quality standards (0.299), order fulfillment performance (0.182), order leadtime (0.068), order fulfillment cycle time (0.080), supply chain flexibility (0.052), the SCM cost (0.086), cash-to- cash cycle time (0.080), and the daily stock (0.048). The supply chain performance measurement for Lettuce with the DEA approach indicated that the farmers had not been 100% efficient. While at the company level, the supply chain performance measurement of Lettuce crop and fresh cut showed the efficiency performance of 100 %. Eventually, the SWOT strategy analysis on the Lettuce lead to the following recommendations to improve the performance:1) use hydrophonic cultivation technology and reduce excessive pesticides, 2) optimize the planting and harvesting schedules considering the climate; 3) increase the responsiveness and the flexibility in meeting consumer orders, and 4) imple- ment the required standard quality assurance and management systems to ensure the consistency of the product quality and acceptability by the consumers.ABSTRAKModel pengukuran kinerja sangat diperlukan sebagai alat untuk peningkatan kinerja rantai pasok sayuran dataran tinggi di Jawa Barat. Pengukuran kinerja dapat mendukung perencanaan tujuan, evaluasi kinerja, perumusan kebijakan strategik, taktis dan operasional rantai pasok. Studi ini dilaksanakan dengan pendekatan sistem yang didukung dengan Teknik/Metode Perbandingan Eksponensial (MPE) untuk menyeleksi komoditi prioritas, kombinasi teknik SCOR dan Fuzzy AHP digunakan untuk merancang metrik pengukuran kinerja, Data Envelopment Analysis (DEA) untuk pen- gukuran kinerja individu anggota rantai pasok dan analisis SWOT untuk merumuskan strategi peningkatan kinerja ran- tai pasok. Hasil MPE menunjukkan bahwa 3 (tiga) komoditas yang diunggulkan adalah Paprika, Lettuce dan Brokoli. Kombinasi SCOR - Fuzzy AHP menghasilkan bobot metrik kinerja rantai pasok: kinerja pengiriman (0,111), Kesesua- ian dengan standar kualitas (0,299), kinerja pemenuhan pesanan (0,182), waktu tunggu pesanan (0.068), pemenuhan siklus pesanan (0,080), fleksibilitas rantai pasok (0,052), biaya manajemen rantai pasok (0,086), siklus pembayaran tunai (0,080), dan stok harian (0.048). Pengukuran kinerja rantai pasok komoditi lettuce dengan teknik DEA menun- jukkan bahwa kinerja efisiensi petani belum mencapai 100 %. Kinerja efisiensi perusahaan pada kasus komoditi lettuce dan sayuran segar potong telah mencapai 100%. Analisa SWOT merekomendasikan strategi untuk peningkatan kinerja rantai pasok lettuce sebagai berikut: 1) penggunaan teknologi hidroponik dan pengurangan penggunaan pestisida, 2) optimasi penjadwalan penanaman dan pemanenan dengan memperhatikan iklim, 3) peningkatan fleksibilitas dalam pemenuhan pesanan, dan 4) penerapan standar manajemen penjaminan kualitas untuk menjamin konsistensi kualitas produk dan penerimaan produk oleh konsumen.

Evaluasi Kesesuaian Lahan untuk Tanaman Jagung Menggunakan Metode Analisis Spasial Ruslan Wirosoedarmo; A Tunggul Sutanhaji; Evi Kurniati; Rizky Wijayanti
agriTECH Vol 31, No 1 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Land suitability assessment was needed to plan productive and sustainable land use. The aim of this research was to de- liver an informative data about land suitability of corn using spatial analysis model. The research was conducted from July 2007 to January 2008, located in Blitar district. The land survey and analysis covered several parameters needed for suitability assessment for corn such as temperature, rainfall, soil drainage, soil texture, pH, effective depth of soil, organic- C, soil content, Cation Exchange Capacity of clay, slope, altitude, and erosion endangered. The land suitability classes were classified into four classes, those were very suitable, suitable, marginally suitable, and not suitable. The data were finally analyzed using Map Calculator in Arc View GIS Software.The results showed that there were three classes of land suitability for corn i.e. very suitable, suitable and marginally suitable which accounted for 85 %, 10 %, and 5 % of 150.96 hectare areas in Blitar. The suitable class mainly located in the northern of Blitar district, while the marginally suitable class mostly located in more than 1200 meters height above sea level covered 10, 117, and 52 hectares area of Wlingi, Gandusari, and Doko county area respectively.ABSTRAKEvaluasi kesesuaian lahan diperlukan untuk perencanaan penggunaan lahan yang produktif dan lestari. Tujuan peneli- tian adalah untuk menyajikan data dan informasi tentang evaluasi kesesuaian lahan bagi tanaman jagung menggunakan model analisa spasial. Penelitian dilaksanakan mulai bulan Juli 2007 sampai bulan Januari 2008. Lokasi penelitian dilaksanakan di Blitar, Jawa Timur. Data yang diperlukan meliputi data spasial berupa peta kontur dan peta jenis tanah skala 1:25000 serta data atribut berupa data klimatologi wilayah dan hasil pengamatan lapangan terhadap sifat fisik, morfologi dan kimia tanah. Parameter kesesuaian untuk tanaman jagung yang ditetapkan meliputi temperatur, curah hujan, kondisi drainase, tekstur, pH, kelembaban relatif, C-organik, KTK Liat, kemiringan, ketinggian tempat dan kondisi erosi. Kelas kesesuaian lahan terdiri atas kelas “sangat sesuai”, “cukup sesuai”, “sesuai marginal” dan “tidak sesuai”. Analisis spasial memanfaatkan fasilitas Map calculator dalam Software Arc View GIS.Hasil penelitian menunjukkan, di Blitar memiliki tiga kelas kesesuaian untuk tanaman jagung yaitu “sangat sesuai” 85%, “cukup sesuai” 10% dan “sesuai marginal” 5 % dari 150961 ha luas wilayah. Kelas “cukup sesuai” umumnya ter- letak di wilayah Blitar Utara dan kelas “sesuai marginal” terletak pada ketinggian di atas 1200 mdpl di sebagian kecil wilayah Kecamatan Wlingi (10 ha), Gandusari (117 ha), dan Doko (52 ha).

Kualitas Emulsi Salad Dressing Berbahan Dasar Virgin Coconut Oil Feti Fatimah; Sanusi Gugule
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Virgin Coconut Oil (VCO) commonly used as functional food. It contain active components of its high lauric acid content. One way to increase consumer acceptance of VCO is by processing VCO to become other food products such as salad dressing. This research was conducted to know the quality of salad dressing made by basic material of VCO. The tested qualities of salad dressing were emulsion stability, size of emulsion droplet, oxidative stability and content of lauric acid. The emulsion stability was tested based on emulsion separation time, droplet size was by microscope, oxidative stability was measured by Rancimat technique, and lauric acid content was by gas chromatography. Based on the research results, salad dressing was made using emulsifier Tween 20 (1 %) and stabilizer guar gum 1 % possess sufficient emulsion stability, size of emulsion droplet of 1-5 µm, a sufficient oxidative stability (8,174 hours), and lauric acid retention of 97 %. Thus, salad dressing with basic material of VCO has a good quality.ABSTRAKVirgin Coconut Oil (VCO) merupakan pangan yang populer dikarenakan komponen aktif yang terkandung serta ka dar asam lauratnya yang tinggi. Salah satu cara meningkatkan penerimaan konsumen terhadap VCO adalah dengan mengolah VCO menjadi produk pangan lain seperti salad dressing. Penelitian ini bertujuan untuk mengetahui kualitas salad dressing yang dibuat dari bahan dasar VCO. Kualitas salad dressing yang diuji adalah stabilitas emulsi, ukuran droplet emulsi, stabilitas oksidatif serta kadar asam laurat. Stabilitas emulsi diuji berdasarkan waktu terjadinya pemi sahan emulsi, ukuran droplet diukur dengan mikroskop, stabilitas oksidatif diuji dengan teknik Rancimat dan kadar asam laurat ditentukan dengan kromatografi gas. Berdasarkan hasil penelitian diketahui bahwa salad dressing yang dibuat menggunakan emulsifier Tween 20 (1 %) dan stabilizer guar gum 1 % mempunyai stabilitas emulsi cukup baik, mempunyai ukuran droplet emulsi 15 μm, mempunyai stabilitas oksidatif cukup tinggi (8,17 jam) serta mempunyai retensi laurat sebesar 97 %. Dengan demikian salad dressing yang diolah dari bahan baku VCO mempunyai kualitas yang cukup baik.

Teknologi Modifikasi Tepung Kasava Haryadi Haryadi
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Cassava productivity is very potential to support food security. Processing of cassava into flour makes the food more durable, less voluminous and easier to handle, and flexible to cook. To extend the use of cassava flour, it is necessary to develop technology to produce quality cassava flour suitable for various food purposes. A certain flour finess is desired to free the starch granules and to allow the granule’s cooking characteristics to express significantly. Modification of cassava flour technology may involve physical, biological, chemical aspects, as well as combination of the aspects.ABSTRAKPotensi produksi kasava sangat besar untuk dimanfaatkan sebagai pendukung ketahanan pangan. Pengolahannya men jadi tepung memungkinkan lebih awet, lebih ringkas dan lebih mudah diangkut, serta lebih luwes untuk diolah. Untuk memperluas penggunaan tepung kasava, perlu pengembangan teknologi produksi tepung bermutu yang dapat diman faatkan dalam berbagai olahan makanan. Tepung dikehendaki pada kelembutan tertentu, sehingga granula-granula pati terlepas dari jaringan awalnya, dan selanjutnya ciri-ciri granula dalam pemasakan menjadi nyata. Modifikasi pembuatan tepung kasava dapat dilakukan secara fisik, biologis maupun kimiawi, ataupun gabungan dari aspek-aspek tersebut.

Kandungan Antosianin dan Identifikasi Antosianidin dari Kulit Buah Jenitri (Elaeocarpus angustifolius Blume) Lydia Ninan Lestario; Elisabeth Rahayuni; Kris Herawan Timotius
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The objectives of this study were to determine total anthocyanin content and to identify kinds of anthocyanidin of blue marble (Elaeocarpus angustifolius Blume) fruit peel. Total anthocyanin content was determined by pH differential method was 23,87 ± 4,11 mg/100 g of dry weight of fruit peel. Kinds of anthocyanidin determined by TLC, UV-VIS spectrophotometer and HPLC and it showed that the major anthocyanin of blue marble fruit peel was cyanidin3 rutinoside, and two others were delphinidin3rutinoside and delphinidin3glucoside.ABSTRAKPenelitian ini bertujuan untuk menentukan kandungan antosianin total dan mengidentifikasi jenis-jenis antosianidin dari kulit buah jenitri (Elaeocarpus angustifolius Blume). Kandungan antosianin total kulit buah jenitri yang diukur dengan metode perbedaan pH adalah 23,87 ± 4,11 mg/100 g berdasarkan berat kering kulit buah. Jenis antosianidin yang diukur dengan KLT, spektrofotometer UV-VIS dan KCKT, menunjukkan bahwa antosianin yang paling dominan pada kulit buah jenitri adalah sianidin-3-rutinosida, sedang dua jenis yang lain adalah delfinidin-3-rutinosida, dan delfinidin-3-glikosida.

Pengaruh Umpan Tambahan pada Akumulasi Polihidroksibutirat (PHB) oleh Bacillus cereus IFO 13690 Menggunakan Substrat Tapioka Margono Margono; Rochmadi Rochmadi; Siti Syamsiah; Muhammad Nur Cahyanto
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Bacillus cereus IFO 13690 is Gram positive bacteria that produces polyhydroxybutyrate (PHB). It has amylolytic characteristic that can be cultured using cassava starch. This research reported the ability of B. cereus IFO 13690 on accumulating PHB and the effects of starch and ammonium feeding on cell and PHB productivity. Batch process was conducted with initial starch of 18 g/l, medium pH of 5.6 and medium temperature of 30 oC. Fed batch process was conducted in the same conditions of the optimum batch process with feeding of 2.1 l/hat 7th 7.65thhours of exponential growth and 1.86 l/hat 10th10.8thhours of exponential growth. The feeding compositions were starch of 70 g/l and am monium sulfate of 20 g/l. The results of batch process showed that the highest accumulation of PHB was achieved with initial ammonium of 1.20 g/l and dissolved oxygen of 5 % air saturation. The highest PHB accumulation of 0.13 g/l was achieved after 29 hours of fermentation. It was similar to 0.005 g/l.h productivity and the PHB content was 2.42%. The productivity of cell and PHB in fed batch process was double compared to the batch process, i.e. 0.39 g/l.h and0.01 g/l.h, respectively. The PHB content in cell dry weight was relatively higher in the fed batch compared to batch process, i.e. 2.50 %.ABSTRAKBacillus cereus IFO 13690 adalah bakteri Gram positif penghasil polihidroksibutirat(PHB) yang bersifat amilolitik sehingga dapat dikulturkan dalam substrat pati. Penelitian ini dimaksudkan untuk melaporkan kemampuan B. cereus IFO 13690 dalam mengakumulasi PHB pada proses batch dan pengaruh penambahan pati serta amonium terhadap produktivitas sel dan PHB pada proses fed batch. Percobaan proses batch dilaksanakan pada konsentrasi pati awal 18 g/l, pH medium 5,6 dan suhu medium 30 oC. Percobaan proses fedbatch dilaksanakan seperti pada proses batch opti mum kemudian ditambahkan medium umpan pada saat pertumbuhan eksponensial, yaitu 2,1 l/jam pada saat pertum buhan eksponensial berlangsung pada jam ke77,65 dan 1,86 l/jam pada saat pertumbuhan eksponensial berlangsung pada jam ke1010,8. Komposisi umpan terdiri dari pati 70 g/l dan amonium sulfat 20 g/l. Hasil percobaan proses batch menunjukkan bahwa akumulasi PHB paling tinggi dicapai pada percobaan dengan konsentrasi amonium awal 1,20 g/l dan konsentrasi oksigen terlarut 5 % jenuh. Akumulasi PHB tertinggi mencapai 0,13 g/l dalam waktu fermentasi 29 jam. Produksi tersebut setara dengan produktivitas 0,005 g/l.jam dan kadar PHB dalam sel sebesar 2,42 %. Produktivi tas sel dan PHB pada proses fedbatch bisa menjadi 2 kali lebih besar dibandingkan dengan proses batch, yaitu 0,39 g/l. jam dan 0,01 g/l.jam. Kadar PHB dalam sel pada proses fedbatch sedikit lebih tinggi dibandingkan pada proses batch, yaitu 2,50 %.

Analisis Neraca Air untuk Pengembangan Tanaman Pangan pada Kondisi Iklim yang Berbeda Mardawilis Mardawilis; Putu Sudira; Bambang Hendro Sunarminto; Dja’far Shiddiq
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

In order to develop food crops in upland in the tropics area, the potential water resources, such as the availability of soil moisture and surface water can be used as a source of water supply especially during the deficit. Therefore, to develop a sustainable food crop, the water balance analysis is absolutely necessary. The data used were series of climate data (temperature, precipitation, evaporation) for 37-year period (1971-2007) at Japura station, Rengat, Riau, heat index data and soil data (soil moisture at field capacity and permanent wilting point) and the effective rooting depth. Exceeded rainfall probabilities and water balance were analyzed using statistical methods. The results showed that soil moisture conditions were always above the limit of water availability for crops although the water balance was deficit for normal, wet and dry conditions. This shows that food crops can be planted all for the whole year in the research area.ABSTRAKDalam rangka pengembangan tanaman pangan di lahan tadah hujan/kering di daerah tropik basah, potensi sumberdaya air, baik berupa ketersediaan lengas tanah maupun air permukaan dapat dijadikan sebagai sumber pasokan air terutama pada saat defisit. Oleh sebab itu untuk pengembangan tanaman pangan yang berkelanjutan, maka analisis neraca air mutlak diperlukan. Data yang digunakan berupa data seri iklim (temperatur udara, curah hujan, evaporasi) periode 37 tahun (19712007) stasiun Japura, Rengat, Riau, data indeks panas serta data tanah (lengas tanah pada saat kapasitas lapang dan titik layu permanen) serta kedalaman perakaran efektif. Peluang curah hujan terlampaui dan neraca air dianalisis meng gunakan metode statistik. Hasil penelitian menunjukkan bahwa keadaan lengas tanah selalu pada batas air tersedia bagi tanaman meskipun neraca air mengalami defisit baik pada kondisi normal, kering maupun basah. Hal ini menunjukkan bahwa di wilayah penelitian dapat dilakukan penanaman tanaman pangan sepanjang tahun.

Pengembangan Computer Vision System Sederhana untuk Menentukan Kualitas Tomat Rudiati Evi Masithoh; Budi Rahardjo; Lilik Sutiarso; Agus Hardjoko
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The purpose of this research was to develop a simple computer vision system (CVS) to non-destructively measure tomato quality based on its Red Gren Blue (RGB) color parameter. Tomato quality parameters measured were Brix, citric acid, vitamin C, and total sugar. This system consisted of a box to place object, a webcam to capture images, a computer to process images, illumination system, and an image analysis software which was equipped with artificial neural networks technique for determining tomato quality. Network architecture was formed with 3 layers consisting of1 input layer with 3 input neurons, 1 hidden layer with 14 neurons using logsig activation function, and 5 output layers using purelin activation function by using backpropagation training algorithm. CVS developed was able to predict the quality parameters of a Brix value, vitamin C, citric acid, and total sugar. To obtain the predicted values which were equal or close to the actual values, a calibration model was required. For Brix value, the actual value obtained from the equation y = 12,16x – 26,46, with x was Brix predicted. The actual values of vitamin C, citric acid, and total sugar were obtained from y = 1,09x - 3.13, y = 7,35x – 19,44, and y = 1.58x – 0,18,, with x was the value of vitamin C, citric acid, and total sugar, respectively.ABSTRAKTujuan penelitian adalah mengembangkan computer vision system (CVS) sederhana untuk menentukan kualitas tomat secara nondestruktif berdasarkan parameter warna Red Green Blue (RGB). Parameter kualitas tomat yang diukur ada lah Brix, asam sitrat, vitamin C, dan gula total. Sistem ini terdiri peralatan utama yaitu kotak untuk meletakkan obyek, webcam untuk menangkap citra, komputer untuk mengolah data, sistem penerangan, dan perangkat lunak analisis citra yang dilengkapi dengan jaringan syaraf tiruan untuk menentukan kualitas tomat. Arsitektur jaringan dibentuk dengan3 lapisan yang terdiri dari 1 lapisan masukan dengan 3 sel syaraf masukan, 1 lapisan tersembunyi dengan 14 sel syaraf berfungsi aktivasi logsig dan 5 lapisan keluaran dengan fungsi aktivasi purelin menggunakan algoritma pelatihan back propagation. CVS yang dikembangkan dapat digunakan untuk memprediksi nilai parameter kualitas tomat yaitu Brix, vitamin C, asam sitrat, dan gula total, meskipun dibutuhkan persamaan kalibrasi. Persamaan kalibrasi untuk Brix, nilai aktualnya diperoleh dari persamaan y = 12,16x – 26,46 dengan x adalah nilai Brix prediksi. Sedangkan kadar vitamin C, asam sitrat, dan gula total aktual secara berturut-turut diperoleh dari y = 1,09x - 3.13, y = 7,35x – 19,44, dan y =1.58x – 0,18, dengan x adalah nilai vitamin C prediksi, asam sitrat prediksi, dan gula total prediksi.

Model Simulasi Kebutuhan Traktor Tangan untuk Pengolahan Tanah Padi Sawah Sigit Prabawa
agriTECH Vol 31, No 2 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The objective of the research was to build the simulation model of hand tractor requirement for soil tillage paddy field. The use of hand tractor for soil tillage at paddy field instructed to support the concept of agricultural mechanization se lective. The difficulty to fulfill requirement of labour for soil tillage had to be anticipated. The simulation model of hand tractor requirement for soil tillage of paddy field needed as one of effort reach the improvement farm operations based on agricultural mechanization selective. Model run to use the software of Powersim. The requirement of hand tractor adapted by growth of labour for soil tillage, animal for soil tillage, area for paddy field, and time which available to soil tillage. More model development detailed and complex is needed to get the more result representative and precisely.ABSTRAKTujuan dari penelitian ini adalah membuat model simulasi untuk menduga kebutuhan traktor tangan pada pengolahan tanah padi sawah. Penggunaan traktor tangan untuk pengolahan tanah pada padi sawah diarahkan untuk menunjang konsep mekanisasi pertanian selektif. Salah satu hal yang perlu diperhatikan adalah antisipasi terhadap kesulitan untuk memenuhi kebutuhan tenaga pengolahan tanah. Model simulasi kebutuhan traktor tangan untuk pengolahan tanah padi sawah diperlukan sebagai salah satu upaya mencapai peningkatan usahatani dengan dasar mekanisasi pertanian selek tif. Model dijalankan menggunakan piranti lunak Powersim. Kebutuhan traktor tangan disesuaikan dengan pertum buhan tenaga pencangkul, pertumbuhan tenaga hewan untuk pengolahan tanah, pertumbuhan luas lahan padi sawah, dan waktu yang tersedia untuk pengolahan tanah. Pengembangan model yang lebih rinci dan kompleks diperlukan untuk mendapatkan hasil yang lebih representatif dan tepat.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Fiametta Ayu Purwandari

Contact Email
fiametta@ugm.ac.id

Phone
+6285712601130

Journal Mail Official
agritech@ugm.ac.id

Editorial Address
Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Fiametta Ayu Purwandari

Contact Email fiametta@ugm.ac.id

Phone +6285712601130

Journal Mail Official agritech@ugm.ac.id

Editorial Address Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia

Location Kab. sleman, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Fiametta Ayu Purwandari

Contact Email
fiametta@ugm.ac.id

Phone
+6285712601130

Journal Mail Official
agritech@ugm.ac.id

Editorial Address
Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA