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All Journal Journal Pharmaceutical Science and Application (JPSA) Jurnal Farmasi Udayana Agrikultura AGROEKOTEKNOLOGI JURNAL ILMU PERTANIAN Jurnal Penelitian Pertanian Terapan Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Jurnal Agro Estate PERTANIAN TROPIK Agrotech Journal Agroista: Jurnal Agroteknologi Agroland: Jurnal Ilmu-ilmu Pertanian

Mariani sembiring

Program Studi Agroteknologi, Fakultas Pertanian, USU, Padang Bulan, Medan- 20155, Indonesia.

Author-ID : 315614

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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EVALUASI KEMAMPUAN LAHAN DESA SIHITONG, SINAR SABUNGAN DAN LUMBAN LOBU KABUPATEN TOBA SAMOSIR Sitohang, Julpan Lynneus; Sitorus, Bintang; Sembiring, Mariani
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i4.4391

Land capability evaluation is an evaluation of land potential for use of various farmingsystems in general without specifying the allocation to certain crops and management actions. Theresearch was conducted in April of 2012. The purpose of this study was to determine the landcapability class on Sihiong, Sinar Sabungan and Lumban Lobu Village Toba Samosir Distric withthe method of limiting factors and matching according to land capability class Arsyad (1989).Analysis of the soil such as soil texture, permeability, bulk density, salinity and organic material areconducted in the Laboratory of Research and Technology, Faculty of Agriculture, University ofNorth Sumatra and field observations such as slope, erosion factors, soil depth, drainage, gravel /rock and inundation / flood hazard. The results showed that areas Sihiong, Sinar Sabungan andLumban Lobu has actual land capability class is the same class III (es), Class III is in which landcan be used for the production of crops and forests, (es) an limiting factor on erosion and the depthof the root zone or soil (solum). So the capability class of potential land become III (s), which (s) isa limiting factor on the rooting area only.Keywords: evaluation of land capability, survey, BPS Tobasa

Pengaruh Kompos Mucuna bracteata Dan Azotobacter Terhadap Pertumbuhan Dan Kadar Nitrogen Bibit Kelapa Sawit Wahyuni, Mardiana; Triani, Agus; Sembiring, Mariani
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 4, No 2 (2020): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Juni
Publisher : Universitas Medan Area

Through the nursery process with certain treatments can be produced quality seeds. Application of Mucuna bracteata compost and Azotobacter on growing media in polybags is one alternative that expected to increase plant growth. This study aimed to determine the effect of M. bracteata compost and Azotobacter and its combination on growth and nitrogen levels of oil palm seedlings. This research was conducted at STIPAP Medan in December 2018 - June 2019 with a Factorial Randomized Block Design (RBD). Treatment compost (K) 3 levels ie K0, K1 and K2 and Azotobacter (A) with 3 levels are A0, A1 and A2. M. bracteata treatment had a very significant effect on seedling height, number of leaves, shoot dry weight and root dry weight. Azotobacter treatment did not significantly affect the parameters of observation, increasing levels of leaf N 13-15%. Interaction compost and Azotobacter treatment had no significant effect. The best treatment is the K2A2 of 1.2 kg of compost and 30 ml of Azotobacter each oil palm seedlings planted in the polybag.

Pengaruh Warna Polibag, Aplikasi Mikoriza dan Pupuk P terhadap Perakaran Bibit Kelapa Sawit (Elaeis guineensis Jacq.) Mardiana Wahyuni; Muhammad Maulana Ghifari; Mariani Sembiring
AGRIUM: Jurnal Ilmu Pertanian Vol 22, No 2 (2019)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Seedling growth in the field is largely determined by the growth of plants during the nursery. The use of polybags should be black so that the roots in the nursery can develop optimally. Mycorrhiza are structures formed by symbiotic associations with root pathogen infections. Phosphate is a macro element that is very important for plant growth. The place of the research was conducted in the STIPAP Field Practice Field in Medan from February to June 2019. This study used a Factorial Randomized Block Design (RBD) with two series (Black and White Polybags) and two factors studied, namely: Mycorrhiza Factor (M) consists of 3 levels, M0 = 0 g / seed, M1 = 40 g / seed, M2 = 80 g / seed. Fertilizer Factor P (P) consists of 3 levels, P0 = 0 g / seed, P1 = 50 g / seed, P2 = 100 g / seed. The parameters measured were plant height, number of leaves, canopy and root dry weight, mycorrhiza infection and P nutrient content. The results showed that mycorrhiza treatment on black polybags had a significant effect on seedling height, and root dry weight. The white polybag has a significant influence on the dry weight of the roots. The application of P fertilizer on black polybag has a very significant effect on root dry weight. The white polybag has a significant influence on the dry weight of the roots. In the black polybag, Mycorrhiza interacts real and very real by giving P fertilizer to the height of the seedlings, and the dry weight of the roots. The white polybag has a very significant effect on the dry weight of the roots.

UJI AKTIVITAS ADAPTOGENIK EKSTRAK ETANOL KULIT BATANG BIDARA (Ziziphus mauritiana Auct. non Lamk.) DENGAN METODE SWIMMING ENDURANCE TEST PADA MENCIT GALUR BALB/C Samirana, P. O.; Putra, P. A. S.; Leliqia, N. P. E.
Jurnal Farmasi Udayana Vol. 4, No. 2, Tahun 2015
Publisher : Departement of Pharmacy, Faculty of Mathematics and Natural Science, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.794 KB)

Ziziphus mauritiana atau bidara telah diketahui memiliki aktivitas antioksidan. Adanya teori yang menyatakan keterkaitan antara aktivitas antioksidan dengan adaptogenik membuat tumbuhan ini diduga memiliki potensi sebagai adaptogen. Tujuan dari penelitiaan ini adalah untuk mengetahui aktivitas adaptogenik dari kulit batang Z. mauritiana. Uji aktivitas adaptogenik dilakukan dengan metode swimming endurance test. Hewan uji yang digunakan dibagi dalam 6 kelompok perlakuan dan diuji kemampuan renangnya. Waktu renang hewan uji sampai tenggelam diukur dan selanjutnya dianalisis secara statistik. Ekstrak etanol 96% kulit batang Z. mauritiana dikatakan memiliki aktivitas adaptogenik bila waktu renang kelompok yang diberikan ekstrak lebih lama jika dibandingkan dengan kelompok kontrolnegatif (p< 0,05). Berdasarkan hasil penelitian, ekstrak etanol 96% kulit batang Z. mauritiana mampu meningkatkan kemampuan renang mencit pada dosis 200, 400, dan 800 mg/kg BB dibandingkan dengan kelompok kontrol negatif. Hasil ini menunjukkan bahwa ekstrak etanol 96% kulit batang Z. mauritiana memiliki aktivitas adaptogenik. Aktivitas ini tidak terlepas dari peran beberapa golongan senyawa dan beberapa diantaranya diduga merupakan senyawa golongan triterpenoid dan flavonoid.

POTENSI BAKTERI AZOTOBACTER DAN HIJAUAN MUCUNA BRACTEATA DALAM MENINGKATKAN HARA NITROGEN KOMPOS TANDAN KOSONG KELAPA SAWIT Zoel Hani Hasibuan; T Sabrina; Mariani Br Sembiring
Jurnal Agroekoteknologi Vol 1, No 1 (2012)
Publisher : Universitas Sumatera Utara

ABSTRACT Potency of Azobacter and Mucuna bracteata forage in increasing the nitrogen content of oil palm empty fruit bunch (TKKS) compost. The management of oil palm empty fruit bunch (TKKS) is still a problem. One of the alternative to utilize this by product is by composting, but there’s still a problem in the low content of nitrogen. The nitrogen can be added from N fertilizer, manure, or by using N-fix microorganisms. The research was aimed to evaluate the potential of Azotobacter and Mucuna bracteata forage in increasing the nitrogen content of TKKS compost. The research was done using Factorial Randomized Block Design, consisting of 2 factors and 3 replication. The first factor was the inokulation time of Azotobacter that consists of 5 treatments (without application, initial application, 2 weeks, 4 weeks, and 6 weeks after composting) and the second factor was the composition of compost ingredient that consists of 3 treatments (100% TKKS, 80% TKKS + 20% M.bracteata, and 60% TKKS + 40% M.bracteata). The result showed that the formulation of compost ingreadients with M.bracteata forage influenced the rate of decomposition and nitrogen content significantly. The increased of nitrogen was 15.20% at the composition of 60% TKKS + 40% M.bracteata. The inoculation time (initial and 2 weeks after composting) increased 2.23% nitrogen content of TKKS. Interaction between Azotobacter application time at 4 weeks after composting with compost composition at 100% TKKS increased nitrogen content about 7.27%. The increasing nitrogen at the composition 80% TKKS + 20% M.bracteata increased nitrogen content about 8.24% by applying Azotobacter in the initial time of composting. Meanwhile, by increasing the amount of M. bracteata did not increase the nitrogen content. Keywords : oil palm empty bunches compost, Azotobacter, M. bracteata, nitrogen ABSTRAK Potensi bakteri Azotobacter dan hijauan Mucuna bracteata dalam meningkatkan hara nitrogen kompos tandan kosong kelapa sawit. Pengelolaan tandan kosong kelapa sawit (TKKS) masih menjadi permasalahan yang dihadapi pada saat ini. Salah satu alternatif pemanfaatan limbah tersebut adalah dengan pengomposan, namun permasalahan yang muncul adalah masih rendahnya kandungan nitrogen. Penambahan nitrogen ke dalam kompos dapat berasal dari pupuk N, hijauan, pupuk kandang maupun mikroorganisme penfiksasi N. Penelitian ini bertujuan untuk mengetahui potensi bakteri Azotobacter dan hijauan M. bracteata dalam meningkatkan hara nitrogen kompos TKKS. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari 2 faktor dan 3 ulangan. Faktor pertama adalah waktu inokulasi Azotobacter yang terdiri dari 5 perlakuan (tanpa aplikasi, awal, 2, 4, dan 6 minggu setelah pengomposan) dan faktor kedua adalah komposisi bahan kompos yang terdiri dari 3 perlakuan (100% TKKS, 80% TKKS + 20% M.bracteata, dan 60% TKKS + 40% M.bracteata). Hasil penelitian menunjukkan formulasi bahan kompos dengan hijauan M. bracteata sangat mempengaruhi laju dekomposisi dan kandungan nitrogen dalam kompos. Peningkatan nitrogen sebesar 15.20% pada komposisi 60% TKKS + 40% M. bracteata. Pada perlakuan waktu aplikasi terjadi peningkatan nitrogen kompos TKKS sebesar 2.23% (awal dan 2 minggu setelah pengomposan). Pada interaksi antara waktu inokulasi Azotobacter tertinggi pada perlakuan 4 minggu setelah pengomposan dengan komposisi 100% TKKS berpengaruh terhadap peningkatan nitrogen sebesar 7.27%. Untuk komposisi 80% TKKS + 20% M.bracteata terjadi peningkatan nitrogen sebesar 8.24% dengan waktu aplikasi Azotobacter di awal pengomposan. Sementara pada komposisi M.bracteata yang lebih banyak tidak terjadi peningkatan nitrogen akibat adanya inokulasi Azotobacter ke dalam kompos TKKS. Kata kunci : kompos tandan kosong kelapa sawit, Azotobacter, M. bracteata, nitrogen

EVALUASI KEMAMPUAN LAHAN DESA SIHIONG, SINAR SABUNGAN DAN LUMBUN LOBU KABUPATEN TOBA SAMOSIR Julpan Lynneus Sitohang; Sitorus Sitorus; Mariani Sembiring
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Land capability evaluation is an evaluation of land potential for use of various farming systems in general without specifying the allocation to certain crops and management actions. The research was conducted in April of 2012. The purpose of this study was to determine the land capability class on Sihiong, Sinar Sabungan and Lumban Lobu Village Toba Samosir Distric with the method of limiting factors and matching according to land capability class Arsyad (1989). Analysis of the soil such as soil texture, permeability, bulk density, salinity and organic material are conducted in the Laboratory of Research and Technology, Faculty of Agriculture, University of North Sumatra and field observations such as slope, erosion factors, soil depth, drainage, gravel / rock and inundation / flood hazard. The results showed that areas Sihiong, Sinar Sabungan and Lumban Lobu has actual land capability class is the same class III (es), Class III is in which land can be used for the production of crops and forests, (es) an limiting factor on erosion and the depth of the root zone or soil (solum). So the capability class of potential land become III (s), which (s) is a limiting factor on the rooting area only. Keywords: evaluation of land capability, survey, BPS Tobasa

SURVEI DAN PEMETAAN STATUS FOSFAT LAHAN SAWAH PADA DAERAH IRIGASI BAHAL GAJAH/TIGA BOLON KECAMATAN SIDAMANIK KABUPATEN SIMALUNGUN Meilissa Damayanti Lumban Gaol; Supriadi Supriadi; Mariani Sembiring
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Survey and mapping phosphorus status on irrigated rice field at Bahal Gajah and Tiga Bolonvillage in Sidamanik Subdistrict. This research purpose to make a map phosphate status on wet ricefield in irrigation area Bahal Gajah/Tiga Bolon. The research start to do on May until December2012. Method of sample take use free grid survey method with semi detail survey scale. Result ofanalysis process using regreation method, with Geografis Information System (GIS) program.Parameter that analysis in laboratory is phosphate available and phosphate total. The result ofresearch showed that phosphate available divided by 3 status such as; medium (6,087 ha), high(136,005 ha), and highest (286,101 ha). Phosphate total divided by 3 status such as; medium(48,393 ha), high (109,445 ha), and highest (269,263 ha).Key words: mapping, phosphorus

DAMPAK DEBU VULKANIK LETUSAN GUNUNG SINABUNG TERHADAP KADAR Cu, Pb, DAN B TANAH DI KABUPATEN KARO Raja Forman Barasa; Abdul Rauf; Mariani Sembiring
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The Study of Effect Volcanic Ash Eruption of Sinabung Mountain on the Content of Copper, Lead,and Boron of Soils at Karo District. Have been done at six locations using Soils Survey Method onSeptember 2010 until March 2012. Each of site soil sampling were done by purposive sampling attwo depths (0-5 cm and 0-15 cm) with two replications. The results showed that at 0,5-15 mm ofthickness of volcanic ash containt at very low level Copper, content of Boron were moderate, high,and very high and content of Lead was at admitted level at 0-5 cm and 0-15 cm soil depth at somesites at Karo DistrictKeywords: volcanic ash, copper, lead, and boron

MORFOLOGI DAN KLASIFIKASI TANAH DI LERENG UTARA GUNUNG SINABUNG KABUPATEN KARO SUMATERA UTARA Ridwandi Ridwandi; Muklis Muklis; Mariani Sembiring
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The survey research is aimed to know the morphology and classification of soils at north slope ofMt.Sinabung. This research was conducted in Subdistrict Naman Teran, District Karo, NorthSumatera Province. Three selected pedons were observed at top slope, middle slope, and bottomslope. Soil samples were taken from each horizon for analysis soil texture, bulkdensity, pH H2O,pH KCl, pH NaF, Aldd, Base Saturation, CEC, ZPC (Zero Point of Charge), Organiccontent, P-retention, P-total, Al-oxsalate extracted (Alo), Si-oxsalate extracted (Sio), and Feoxsalateextracted (Feo) in The Chemical Soil Fertility and Research and Technology Laboratory,Agricultural Faculty of North Sumatera University, Medan. The result of the observation and theanalysis showed that the top slope soil has a rock material of lava which has been solid through ashallow solum, the middle slope soil have a perent material of lahars through a thick solum, and thebottom slope soil have a parent material of volcanic ash through a thick solum. According to SoilTaxonomy, the top slope soil is classified into su group Andic Dystrudept, however both of themiddle slope soil and the bottom slope soil are classified into sub group Typic Hapludand.Key Word : Mt.sinabung, soil classification. Soil morphology

EVALUASI KESESUAIAN LAHAN UNTUK PADI SAWAH TADAH HUJAN (Oryza sativa L.) DI KECAMATAN MUARA KABUPATEN TAPANULI UTARA Yopie Priest Aulia Sinaga; Razali Razali; Mariani Sembiring
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

This study aimed to evaluate the suitability of land in Muara North Tapanuli for rainfed paddyfields. Based on a map of soil type and slope maps generated from topographic maps with a scaleof 1: 50,000, then be overlaid. Raised 3 LMU(Land Map Unit) are eligible to be assessed for rainfedpaddy crop. The assessment of land suitability classes with appropriateness rainfed paddy fieldscriteria is based on Djaenuddin, et al., 2011. The results showed that the potential land suitabilityclass LMU 1 isN (rc), potential land suitability class LMU 2 is S3 (tc), potential land suitabilityclass LMU 3 is S3 (tc, rc). Potential land area for rainfed paddy fields in the district of Muara is of1844 hectares.

Co-Authors Abdul Rauf Abdul Rauf Ade Ine Imansari Agustini, Fenny Alfredo Sitorus Alida Lubis Amos Simanungkalit Andi Andi Armando Septian Simbolon Armando Septian Simbolon Aslan Pasaribu Asmarlaili S. Hanafiah asmarlaili sahar hanafiah Beatrix I. L. J. Sinaga Benny Hidayat Benny Hidayat Bintang Sitorus Bintang Sitorus Budi Ananda Pratama Cynthia Simanjuntak Damanik, Revandy I.M Danu Syahputra Lubis Deni Elfiati Deni Elfiati Edi Sigit Sutarta Edi Sigit Sutarta Eko Andreas Sihite Fauzi Fauzi Githa Noviana Guntoro Guntoro . Hardy Guchi Hendrik Dharmansyah Imam Ramadhan Intan Safitri Jamila Jamilah Jamilah Jamilah Jul Bahori Panggabean Julpan Lynneus Sitohang Lady Sarah M.M.B. Damanik Mardiana Wahyuni Mardiana Wahyuni@gmail.com Marta Ritonga Meilissa Damayanti Lumban Gaol Muhammad Maulana Ghifari Muhammad Nazarul Yanis Muhammad Yusuf Dibisono Mukhlis Mukhlis Muklis Muklis Ni Komang Sri Lumbung Artha Wardani Nofriyanto Pakolo Nur Ulina Warnisyah S Sebayang, Nur Ulina Warnisyah S Posma Marbun Putra, P. A. S. Putu Oka Samirana rahmayanti rahmayanti Raja Forman Barasa Razali Ricky Elmando Saragih Ridwandi Ridwandi Rino P. C. Purba Rizky Dharmawan Margolang, Rizky Dharmawan Margolang, Ropikoh Hasibuan Sakiah Sakiah Sakiah Sakiah Sarifuddin Sarifuddin Sitohang, Julpan Lynneus Sitorus Sitorus Supriadi Supriadi Susianti Susianti Marbun T Sabrina T Sabrina T. Sabrina Tengku Sabrina Tengku Sabrina Tioner Purba Tosuko Utomo Triani, Agus vijay sitanggang Viky Fatmala Wahyuni, Mardiana Yopie Priest Aulia Sinaga yudi sudarno sihombing Zoel Hani Hasibuan Zulkifli Nasution Zulkifli Nasution

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