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Journal : JURNAL AGRICA

ANALISIS KELAYAKAN PENGEMBANGAN BIODISEL ANALISI KELAYAKAN JARAK PAGAR SEBAGAI SUMBER ENERGI ALTERNATIF Teguh Wahyono; Suprianto Suprianto
JURNAL AGRICA Vol 1, No 1 (2008): JURNAL AGRICA
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrica.v1i1.1343

Abstract

Biodisel adalah sumber energi yang dapat dibuat dari bahan baku biomassa seperti kelapa sawit, jarak pagar atau yang lainnya. Sika dilihat sifatnya, biodisel mempunyai sifat-sifat fisik yang serupa dengan minyak solar (petroleum diesel), sehingga biodisel dapat dipergunakan langsung sebagai bahan bakar pengganti ataupun campuran minyak solar untuk kendaraan bermesin disel. Pada dasarnya, aspek ekonomi sumber daya energi bukan saja ditentukan oleh harga sumber energi itu sendiri, tetapi ditentukan pula oleh harga sumber energi sejenis yang akan disubtitusi. Dengan semangkin meningkatnya harga minyak solar akan semangkin memperkecil perbedaan antara biodisel dengan BBM sehingga menjadikan biodisel menarik secara ekonomi untuk dimanfaatkan sebagai sumber energi alternatif. Dari analisi yang dilakukan diperoleh kesimpulan bahwa untuk menggantikan BBM solar dengan harga subsidi, pengembangan biodisel/usaha tani jarak pagar tidak layak secara finansial pada semua pola tanaman dan semua tingkat randemen. Sementara untuk solar tanpa subsidi, pengembangan biodisel/usaha tani jarak pagar menjadi layak secara finansial untuk semua pola tanam, bila tingkat randemen menjadi di atas 30%. Kata Kunci : biodisel, jarak pagar, analisis kelayakan
Analisis Pendapatan Petani dan Faktor-Faktor Yang Mempengaruhi Produktivitas Sayur Mayur di Kecamatan Purba Kabupaten Simalungun Mega Fajri Aini Saragih; Hasnudi Hasnudi; Teguh Wahyono
JURNAL AGRICA Vol 6, No 2 (2013): JURNAL AGRICA
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrica.v6i2.1337

Abstract

The Purba District is the largest central areas of vegetable production and is one of the local areas in the development of vegetable crops at Simalungun Regency.  This research uses field observations by the questionnaire and interview research instruments, this research is descriptive quantitative. The population were all the tomatoes, cabbage and potatoes farmers at 3 (three) sample villages at the Purba District. The respondents were 70 people farmer scattered samples at Nagori Tiga Runggu, Pematang Purba and Hutaraja. Data collected by interview, questionnaire, and study documentation. The data analysis used the multiple linear regression analysis estimated by the Cobb - Douglas production function. The results shows that the variable cropping patterns and organic fertilizers and pesticides had a signficantly effect on land productivity of vegetables farming. Then the chemical fertilizers and labour variables had a non significantly effect on the land productivity of vegetables farming at Purba District of Simalungun Regency. By this study had been conclusion that the vegetables productivity of vegetable farming highest obtained at the cropping pattern of land planted with cabbage 3 times in 1 year. The productivity by 59.988,98 kg/ha/year. The highest revenue for vegetable farmers on cropping pattern obtained 5 where the land planted with tomatoes and potatoes 1 times in a year. The income average of Rp. 100.895.515,7/Ha/year. Keywords : productivity, production, vegetables, Cobb-Douglas 
PERANAN KOMODITAS JAGUNG (Zea mays L.) TERHADAP PENINGKATAN PENDAPATAN WILAYAH KABUPATEN KARO Ivan Setyastiawan; Teguh Wahyono; Yusniar Lubis
JURNAL AGRICA Vol 3, No 2 (2010): JURNAL AGRICA
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrica.v3i2.1345

Abstract

Corn is a commodity whose role is increasingly important both as a food or raw materials of food industry, as well as animal feed raw materials, and a multipurpose commodity which has a lot of derivative products when processed estimated 2-3% for domestic consumption and the rest for the industry even overseas corn used as a biofuel. The are very big demand of global for the corn, with a huge potential increase in supply and demand world, it is estimated that there are great opportunities to develop agribusiness corn in North Sumatra.The are very big potential on corn development at North Sumatra, but the real production of corn is still far below its demand, so that the corn needs are not always met. The corn agribusiness development at Karo Regency is expected to boost the regional economy, rural employment, increase the farmers' income. The corn cultivation had influence on regional development in Karo Regency, the increase in income area with an average contribution of 6.14%. The corn cultivation at Karo Regency is the economic basis based on income indicators. Keywords : Corn, GDP, production. 
Co-Authors -, Rohayati - AA Sudharmawan, AA Abdulkadir Sunito, Melani Achmad Fahrudin Ade Mirza Roslinawati Adinda Muthiah Rana Adriana, Galuh Afifa, Tsonya Yumna Agus Heri Purnomo, Agus Heri Ahmad Sihabudin Aida Vitayala S. Hubeis Aida Vitayala S. Hubeis Aida Vitayala S.Hubeis Aida Vitayala S.Hubeis, Aida Vitayala Akhmad Fauzi Aldina Hapsari Ali Khomsan Amir Mahmud Amir Mahmud Amir Mahmud Amiruddin Saleh Andi Ishak Andilo Toham Andriani Nasir Anna Fatchiya Annisya Rakha Anandhyta Arif Satria Ario Damar Arya Hadi Dharmawan Astriana Napirah Attamimi, Gadri Ramadhan Aulia Tasman Baba Barus Baekhaki, Khamid Bakti, Andi M. Faisal Bambang Juanda Basita Ginting Sugihen Bayu Budiandrian, Bayu Burhan, Ahmad Badari Cahyadie, Beny Dedi Soedharma Dedi Supriadi Adhuri Desak Gede Karlina Satwiva Wijaya Didin S. Damanhuri Djuara P Lubis Dwi Retno Hapsari, Dwi Retno Dwi Sadono Dyah Ita Mardianingsih Dzulkarnain, Iskandar Edvin Aldrian Eka Purna Yudha Ekawati Sri Wahyuni Elbie Yudha Pratama Endriatmo Soetarto Ernan Rustiadi Ervan Ismail Erwiantono Faris Rahmadian Fatriyandi Nur Priyatna Fauziah, Piranti Dwi Fevi Rahma Dwi Putri Fitriani Fitriani Foley, Sean Fredian Tonny Nasdian Fredinan Yulianda Fuad Habibi Siregar Fuad Muchlis Geidy Geidy Tiara Ariendi H. Dharmawan, Arya Haditia, Mega Hamdan Has Hana Indriana Hannan, Abd. Hapsari, Aldina Hariyati, Farida Hasnudi Hasnudi Hilda Nurul Hidayati Hilmawan, Arif I Gusti Agung Komang Diafari Djuni Hartawan Iin Sulis Setyowati Iis Diatin Imam Gozali Iqbal Ghazali Isdradjad Setyobudiandi Ishak, Andi Iskandar Dzulkarnain Ivan Setyastiawan Ivanovich Agusta Joni Trio Wibowo Jumriyah Jumriyah K. Pandjaitan,, Nurmala Khaeru Mahfudhoh Khairil Anam, Khairil Khairul Amri Kholil Kholil Kurniawan, Tikkyrino La Ode Nafiu Lala M Kolopaking Laura M Kolopaking, Laura M Lukman Hakim Lukman Hakim Luluk Annisa M Khoirun Najib Mahmuddin Mahmuddin Mahmudi Siwi Martua Sihaloho Mauriens Sukandar Mega Fajri Aini Saragih Mony, Ahmad Mony, Ahmad Mubasyiroh Mubasyiroh Muhamad Isnaini Muhammad Fachrul Rozi Eko Putra Muhammad Hatta Muldi, Ail Murdianto Murdianto, Murdianto Musa Hubeis Najib, M Khoirun Nasution, Charity Naysa Natsir Sandiah Nelonda, Selli Nia Kurniati novindra . Nugroho, Adi Purwanto Nur Isiyana Wianti Nuraini W. Prasodjo Nurfadilah Nurfadilah Nurmala Katrina Pandjaitan Nurul Fitriya Pang S. Asngari Patriana, Ratna Paulus Boli Petrus Kobesi Pudji Muljono Purwanto - Purwanto Puspitasari, Yuni Putri, Fevi Rahma Dwi Querdiola, Cisilia R. Panuju, Dyah Rafnel Azhari Rahmadi Tambaru Rahmat Januar Noor Rajib Gandi Rizaldi Boer Rizali, Repi Rofinus Leki Sadu Wasistiono, Sadu Saharuddin Saharuddin Saharuddin, Saharuddin Saidin, Ainun Aviv Sakaria J Anwar Salju Salju sapanli, kastana Sarifuddin, Andri - Sarwititi Sarwoprasojdo, Sarwititi Sarwoprasodjo, Sarwiti Satyawan Sunito Satyawan Sunito Satyawan Sunito Seminar, Annisa Sihaloho, Martua Simanjuntak, Asnika Putri Siti Khadijah Slamet Daroini Soeryo Adiwibowo Sofyan Sjaf Subiyanto, Adi Sulistiyowati, Iin Sumardjo Sumardjo , Sumardjo Suryadarma, Sheviyola Denenti Tantry Widiyanarti Tarmiji Alkhudri, Ahma Taryono Taryono Taryono Taryono, Taryono Tatik Yuniarti Tatik Yuniarti Taufik, Iswan Titien Yusnita Titik Sumarti Titik Sumarti Tjondronegoro, S.M.P Tri Susanto Tsonya Yumna Afifa Unasiansari, Ismia Vidiastuti Sholihah, Fasih Virida Martogi Hasiholan W. Kurniawan Wafi Muhaimin Wantona, Saradi Widya Hasian Situmeang Yanti, Bayu Vita Indah Youwikijaya, Siti Erwina Yoyoh Indaryanti Yuliana, Dhina Yulianus Viktor Yusniar Lubis Zeid B. Smeer