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Benny Hidayat
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INDONESIA
PERTANIAN TROPIK
Published by Universitas Sumatera Utara
ISSN : 26557576     EISSN : 23564725     DOI : https://doi.org/10.32734/jpt.
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Tropical Agriculture Journal (JPT) is a peer-reviewed online journal of Agriculture Postgraduate Study Program Universitas Sumatera Utara (USU). Journal is a result of research, or scientific reviews of researchers, students and agricultural institutions, and others related to agricultural studies in the tropical region. Published in Indonesian and English language with 3 volumes/year (April, August, December). These articles are indexed by Google Scholar, PKP Indexing, RootIndexing, Portal Garuda, Indonesian Publication Index (Garuda Portal), One Search Perpustakaan Nasional, BASE (Bielefeld Academic Search Engine), and Directory of Research Journal Indexing (DRJI), JPT is member of AJPI (Association of Indonesian Agriculture Journal, and strives to be a means of periodic, accredited, national scientific publications or reputable international publications through.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 377 Documents
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DETERMINATION TYPE OF ALLOPHANE ON ANDISOL IN DOLAT RAKYAT VILLAGE TIGA PANAH DISTRICT, REGENCY OF KARO Jupri Simamora; Purba Marpaung; Alida Lubis
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (434.742 KB) | DOI: 10.32734/jpt.v2i3.2916

Abstract

The aim of the research was to determinate the type of Allophane minerals by means of Thermogram and to know the type of Allophane minerals with Allophane–Organic Matter relations. The research was done in Dolat Rakyat villages, District of Tiga Panah Karo Regency, In Soil Fertility Laboratory University of North Sumatera, and College of Chemical Industry (PTKI), Medan in June - October 2014. Soil type is Andisol. The result of the research in Dolat Rakyat Village Tiga Panah District, Regency of Karo Thermogram interpretation showed that type of Allophane minerals Andisol that is Allophane B. Allophane-Organic Matter relations showed that type of Allophane minerals is Allophane B with positive relations between Allophane-Humic Acid; negative relations between Allophane-Fulvic Acid, and Allophane-Humic Acid+Fulvic Acid.
PENGKAJIAN UJI ADAPTASI VARIETAS PADI UNGGUL BARU DI KABUPATEN TAPANULI SELATAN SUMATERA UTARA
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.01 KB) | DOI: 10.32734/jpt.v2i3.2925

Abstract

Study of six high yielding varieties of rice adaptation performed on wetland rice fields in the North of Sumatera.The activities focus on location in Pintu Padang I village. The objective is to implement mentoring activities rice technology through the test and open-field VUB adaptation to increase rice production. The team have been mentoring technology of SL-PTT-Rice in West Tapanuli Regency, as has been done in 2013. Mentoring of the application of technological innovation with approaches Integrated Crop Management (PTT). The test of adaptation to six varieties (Inpari 3, Inpari 10, Inpari 14, Inpari 15, Inpari 16 dan Mekongga). Through this activity, carried rice varieties test an acre in one location. The technologies presented are: new varieties, cropping patterns legowo 4:1, fertilizing, pest control, etc.. The test of adaptation to six varieties, the highest result was Mekongga (8,2 t/ha), Inpari 14 (8,1 t/ha) and Inpari 15 (8,1 t/ha)., so these varieties is very potential to be developed of the farmer and stakeholders.
PENAMPILAN BEBERAPA KARAKTER MORFOFISIOLOGI GALUR INTRODUKSI JAGUNG (Zea mays L.) YANG DISELEKSI PADA LINGKUNGAN TANAH MASAM Khairunnisa Lubis; Surjono Hadi Sutjahjo; Muhamad Syukur; Trikoesoemaningtyas
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (164.462 KB) | DOI: 10.32734/jpt.v2i3.2927

Abstract

The objective of this research was to obtain morpho-physiological characters performances maize inbreed on acid soil condition. The experiment was conducted in a Nested Design with three replications. The first factor was environment, the second factor was 16 inbreds of maize. The experiment was conducted at two environments : acid soil with criteria of Al-dd 0.2 me.100 g-1 and acid soil with criteria of Al-dd 1.87 me.100 g-1. The results showed that tolerant maize inbreed on acid soil condition had small Anthesis Silk Interval and …faster
OIL PALM DEVELOPMENT ON THE TIDAL SWAMP LAND (CASE STUDY RAWAPITU REVITALIZATION PROGRAM KABUPATEN TULANG BAWANG, LAMPUNG) Sumaryanto; Heri Santoso; Fandi Hidayat
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.719 KB) | DOI: 10.32734/jpt.v2i3.2928

Abstract

Indonesia has around 20.11 million hectares of tidal swamp land area and about 2.07 million hectare is tidal swamp potential. The results of the inventory report BPTP Lampung in 2012 revealed that the area of swamp land in Lampung Province 108 thousand ha consisting of 56 thousand ha of tidal swamp and 52 thousand ha of lowland swamp.The main issues management of tidal swamp land is the water level always changing and the sulfidic or pyrite layer. Application water system design are good enough to prevent it. The rain distribution on Rawapitu about 39-531 mm during 2013-2014 and there were 2-3 month dry season. The fluctuation of water level on piezometer showed that the areal flooded on December 2013 and April 2014. It has affected the oil palm growth although increasing the number of frond, rachis length, and leaf area indeks.
RESPON PERTUMBUHAN DAN PRODUKSI ROSELLA (Hibiscus sabdariffa L.) PADA TANAH SALIN DENGAN PEMBERIAN ASAM SALISILAT DAN GIBERELLIN (GA3) Aisar Novita; Luthfi A.M. Siregar; Rosmayati
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (127.676 KB) | DOI: 10.32734/jpt.v2i3.2929

Abstract

Penelitian ini bertujuan untuk mengevaluasi respon pertumbuhan dan produksi rosella (hibiscus sabdariffa L.) pada tanah salin dengan pemberian asam salisilat dan giberellin (GA3). Penelitian ini dilakukan di rumah kaca, Fakultas Pertanian, Universitas Sumatera Utara, Medan, pada Februari 2014 sampai Juni 2014. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 3 (tiga) factor dan 3 (tiga) ulangan. Faktor pertama giberellin (GA3) dengan dua taraf yaitu 0 mg L-1, 5 mg L-1. Faktor kedua asam salisilat dengan tiga taraf yaitu 0 mM, 0,5mM, 1 mM. Faktor ketiga tingkat salinitas dengan 2 taraf yaitu 0 dsm-1 dan 4-5 dsm-1. Hasil penelitian menunjukkan bahwa interaksi antara giberellin dan cekaman salinitas memperlihatkan pengaruh nyata pada peubah pertumbuhan seperti persentase perkecambahan, tebal kutikula dan betakaroten. Interaksi antara perlakuan asam salisilat dan cekaman salinitas memperlihatkan pengaruh nyata pada tebal kutikula dan betakaroten. Interaksi tiga factor perlakuan giberellin, asam salisilat dan cekaman salinitas menunjukkan pengaruh yang nyata pada peubah tebal kutikula dan betakaroten.
BENIH KELAPA SAWIT (Elaeis guineensis Jacq.) DXP SOCFINDO MT GANO MODERAT TAHAN GANODERMA BONINENSE Indra Syahputra; Agustiaman Purba
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.002 KB) | DOI: 10.32734/jpt.v2i3.2930

Abstract

Banyak perkebunan kelapa sawit mengalami kerugian karena penyakit busuk batang bawah, yang disebabkan oleh Ganoderma boninense, yaitu jamur yang menyebabkan kematian pada tanaman. Praktek kultur teknis agaronomis dan pengelolaan fitosanitari dapat mengurangi dampak penyakit namun harus sejalan dengan penggunaan bahan tanaman yang tahan terhadap G. boninense. Ketahanan total tanaman-tanaman terhadap jamur belum ada dilaporkan, namun banyak contoh yang sudah diamati, termasuk kelapa sawit (Durand-Gasselin et al, 2014).Kelapa sawit, merupakan tanaman yang memiliki arti penting secara ekonomi, yang merupakan salah satu sumber minyak nabati penting di dunia dan sebagai bahan bakar biodiesel yang baik. Namun saat ini, kelapa sawit menghadapi masalah terhadap serangan penyakit. Banyak penelitian yang telah dilakukan, menyatakan bahwa Ganoderma boninense merupakan patogen utama penyebab penyakit yang menyerang kelapa sawit, bahkan sampai tingkat mematikan (Hushiarian et al, 2013). Ketahanan genetis terhadap penyakit busuk pangkal batang merupakan komponen utama dalam strategi pengendalian penyakit tersebut pada tanaman kelapa sawit. Deteksi awal pada tingkat ketahanan atau kerentanan adalah hal yang sangat penting untuk pemuliaan dan kesinambungan tanaman kelapa sawit khususnya di Asia Tenggara. Screening test berbagai progeni kelapa sawit telah dikembangkan melalui pertukaran bahan tanaman antara PT PP London Sumatera dan PT Socfin Indonesia (Breton et al, 2008).
PEMANFAATAN NEMATODA ENTOMOPATOGEN STEINERNEMA SP. ISOLAT LOKAL TERHADAP MORTALITAS PENGGEREK BUAH KOPI, H. HAMPEI FERR. DI LAPANGAN Ida Roma Tio Uli Siahaan; Maryani Cyccu Tobing; Lisnawita
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (180.552 KB) | DOI: 10.32734/jpt.v2i3.2932

Abstract

Potensi nematoda entomopatogen Steinernema sp. terhadap penggerek buah kopi, Hypothenemus hampei di Sumatera Utara belum pernah dilaporkan. Untuk itu telah dilakukan uji mortalitas Steinernema sp. isolat lokal terhadap H. hampei di lapangan. Penelitian bertujuan untuk mendapatkan konsentrasi Steinernema sp. isolat lokal yang tepat terhadap H. hampei di lapangan. Penelitian dilaksanakan pada Bulan April 2015 di kebun kopi petani di Kecamatan Habinsaran Kebupaten Toba Samosir Provinsi Sumatera Utara. Perlakuan yang dicobakan adalah kerapatan nematoda dengan tingkat konsentrasi 5000, 5500, 6000, 6500 ji/ml air steril dan kontrol (tanpa perlakuan). Aplikasi dilakukan dengan menyemprotkan suspensi ke buah-buah kopi matang yang terserang H. hampei. Perbanyakan nematoda dilakukan secara in vivo menggunakan ulat hongkong (Tenebrio molitor). Hasil penelitian menunjukkan bahwa mortalitas larva H. hampei tertinggi terdapat pada perlakuan 6500 ji/ml air steril sebesar 33,13, 33,29 dan 39,53 %. Mortalitas H. hampei meningkat seiring dengan bertambahnya kerapatan nematoda.
UJI KETAHANAN TERHADAP ALUMINIUM DAN pH RENDAH PADA JAGUNG (Zea mays L) VARIETAS PIONEER DAN SRIKANDI SECARA IN VITRO Sri Romaito Dalimunthe; Abdullah Bin Arif; Irpan Badrul Jamal
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (164.908 KB) | DOI: 10.32734/jpt.v2i3.2934

Abstract

One effort to increase maize productivity is by using marginal land for maize plantation. The marginal land that can be used is acid soil, but the problem are Al toxicity and low pH. To cope with these problems, cultivars having tolerance to Al toxicity and low pH are needed. Plant material used in this research were two maize varieties (Pioneer and Srikandi). Media selection is used there are 4 doses treatment aluminium (0, 250, 500 and 750 ppm AlCl3). All variables were observed except at the variable width of the leaf in this results showed that the treatment of aluminium (AlCl3) would not influence. Treatment combination Variety Srikandi and 250 ppm AlCl3 produces plant height, leaf length and leaf width is the shortest compared to other treatments. Variety Pioneer and Srikandi are suspected of varieties resistant aluminum and low pH values based on relative root length.
EFEKTIVITAS PEMBERIAN BEBERAPA JENIS BAHAN ORGANIK TANDAN KOSONG KELAPA SAWIT DAN MIKORIZA PADA TANAMAN KARET DI TANAH CEKAMAN KEKERINGAN Santa Maria Lumbantoruan; Asmarlaily Sahar; Deni Elfiati; Chadra Sitohang
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.947 KB) | DOI: 10.32734/jpt.v2i3.2936

Abstract

Penelitian ini bertujuan untuk mengetahui respon pemberian Bahan Organik TKKS dan Mikoriza terhadap pertumbuhan stum karet berpayung dua ditanah cekaman kekeringan pada kadar 60 %. Penelitian ini dilaksanakan di rumah kasa Fakultas Pertanian USU (± 25 m dpl) pada bulan November 2014 – Mei 2015 menggunakan Rancangan Acak Lengkap Faktorial (RAL) dengan dua faktor. Fakktor pertama yaitu dosis Bahan Organik Tandan Kosong Kelapa Sawit (TKKS) dengan 4 taraf yaitu 0 g/polybag, 300 g/polybag, 600 g/polybag, 900 g/polybag; dan faktor kedua yaitu jenis Mikoriza dengan 4 taraf yaitu tanpa mikoriza, Glomus, Acaulospora, Glomus+Acaulospora. Hasil penelitian menunjukkan bahawa aplikasi bahan organik TKKS memiliki pengaruh yang nyata terhadap tinggi tanaman dan cenderung nyata pada diameter batang. Dimana taraf terbaiknya diperoleh pada dosis 600 g/polybag. Pemberian Mikoriza tidak berpengaruh nyata namun dapat meningkatakan rata-rata tinggi tanaman dan diameter batang. Jenis mikoriza yang terbaik diperoleh pada jenis mikoriza yang digabung yaitu Glomus + Acaulospora. interaksi antara bahan organik TKKS dan Mikoriza tidak berpengaruh nyata namun dapat meningkatkan rata-rata tinggi tanaman dan diameter batang. Taraf kombinasi yang terbaik terdapat pada Bahan Organik TKKS 300 g/polybag dan Mikoriza Glomus + Acaulospora.
ANALISIS PERAN PEMUDA TERHADAP PEMBANGUNAN PERTANIAN LAHAN PANGAN BERKELANJUTAN DI KABUPATEN LABUHANBATU UTARA Ajuan Ritonga; Erlina; Supriadi
Jurnal Pertanian Tropik Vol. 2 No. 3 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.525 KB) | DOI: 10.32734/jpt.v2i3.2937

Abstract

The agriculture development of progressive crop land consists of three significant factors such as human resources, natural resources and appropriate technology. The method used in the research is survey, a kind of research of which data is collected from samples over population to represent all population. The type of survey used is explanatory research, a kind of research means to explain the position of variables researched and the relation between a variable and another. The population of the research was all the youths in Labuhan batu Utara being 17-30 years old. According to BPS data in 2013, there were 46,091 youths in Labuhan batu Utara. Sampling used simple sampling random method where sample taken randomly from population based on the probability frequency of all the population’s members. By using the formula of Frank Lynk, it was obtained 96 sample respondents. The conclusion of the research is 1) the youths’ perception to the agriculture development of progressive crop land in Labuhanbatu Utara is positive, 2) the youths’ role to the agriculture development of progressive crop land in Labuhanbatu Utara is positive and 3) the effect of the youths’ role as the agent of change, the agent of development and the agent of modernization is simultaneously significant to the agriculture development of progressive crop land in all the aspects- human resources, natural resources and appropriate technology. Meanwhile the variable of the agent of modernization effects positively but is not significant to the agriculture development of progressive crop land.

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