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All Journal AGROEKOTEKNOLOGI Jurnal Sosial Ekonomi Pertanian JTSL (Jurnal Tanah dan Sumberdaya Lahan) Martabe : Jurnal Pengabdian Kepada Masyarakat jurnal Ilmu Pertanian (Agricultural Science) Jurnal Agro Estate JTECS : Jurnal Sistem Telekomunikasi Elektronika Sistem Kontrol Power Sistem dan Komputer PERTANIAN TROPIK Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Jurnal Pendidikan, Sains dan Teknologi Bigint Computing Journal

T Sabrina

Department Of Agriculture, Faculty Of Agriculture, Universitas Sumatera Utara.

Author-ID : 2980376

Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences

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Aplikasi Bahan Organik pada Piringan Kelapa Sawit untuk Meningkatkan Populasi Cacing Tanah dan Ketersediaan Hara P dan K Nur Ulina Warnisyah S Sebayang; T. Sabrina; Mariani Sembiring
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

The earthworm contribute to soil fertility and environment quality but they need a suitable habitat to survive on the land including the presence of organic material as a food source. The present study was conducted in Sei Pancur Plantation, Tanjung Morawa, in March - September 2015. The design used in study was a factorial randomized block design consists two factors. The first was various types of organic materials : without organic matter (B0) ; litter (B1) ; empty fruit bunches oil palm (B2) ; litter+T.harzianum (B3) ; and empty fruit bunches oil palm+T.harzianum (B4). The second were method of application : evenly spread a layer (C1) ; stacked around turn rod (C2) ; and stacked on the edge of weeded circle (C3). The result found that application of organic materials significantly increased P-available, K-exchangeable, and earthworm. Method of applications significantly increased P-available and earthworm populations. The relationship among interaction of both significantly increased phosphate available and earthworm populations. Application on the edge of weeded circle was the best way to reduce P-available and earthworm populations. Empty fruit bunches oil palm+T.harzianum reduced K-exchangeable. Empty fruit bunches oil palm increased earthworm populations and litter+T.harzianum increased P-available.Key words : earthworm, method of applicaton, weeded circle, organic materialsThe earthworm contribute to soil fertility and environment quality but they need a suitable habitat to survive on the land including the presence of organic material as a food source. The present study was conducted in Sei Pancur Plantation, Tanjung Morawa, in March - September 2015. The design used in study was a factorial randomized block design consists two factors. The first was various types of organic materials : without organic matter (B0) ; litter (B1) ; empty fruit bunches oil palm (B2) ; litter+T.harzianum (B3) ; and empty fruit bunches oil palm+T.harzianum (B4). The second were method of application : evenly spread a layer (C1) ; stacked around turn rod (C2) ; and stacked on the edge of weeded circle (C3). The result found that application of organic materials significantly increased P-available, K-exchangeable, and earthworm. Method of applications significantly increased P-available and earthworm populations. The relationship among interaction of both significantly increased phosphate available and earthworm populations. Application on the edge of weeded circle was the best way to reduce P-available and earthworm populations. Empty fruit bunches oil palm+T.harzianum reduced K-exchangeable. Empty fruit bunches oil palm increased earthworm populations and litter+T.harzianum increased P-available.Key words : earthworm, method of applicaton, weeded circle, organic materials

Dynamics of Soil Mesofauna Population Cause by Addition Several Kind and Technique Application of Organic Materials on Oil Palm Weed Circle Risky Ananda; T. Sabrina; Sarifuddin Sarifuddin
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Population of soil mesofauna is strongly influenced by the availability of food sources in their environment. Food sources may include various types of organic materials. This research aimed to determine the effect of types and technique application of organic materials on weed circle towards the population of soil mesofauna. This research was conducted in Indonesia Oil Palm Research Institute (IOPRI) plantations Aek Pancur, Tanjung Morawa. This research was use factorial randomized block design. The first factor was the types of organic material, i.e. without organic material, litter, Empty Fruit Bunch (EFB), litter + T. harzianum and EFB + T. harzianum and the second factor was the technique application of organic materials i.e. spread in palm circle, put around the stand of palm and put on the threshold of palm circle. The results showed that in week 2, type of organic materials, technique application and both interaction was not affect soil mesofauna population, but in week 4, 6 8 and 12 type of EFB, technique application spread in palm circle and both interaction could increase the population of soil mesofauna. The highest population was on treatment B2A1 in week 12 (4106 ind m-2).

Populasi Bakteri Tanah pada Piringan Tanaman Kelapa Sawit Akibat Pemberian Pupuk NPK Komplit Netanya Panggabean; T. Sabrina; Kemala Sari Lubis
Jurnal Agroekoteknologi Vol 4, No 3 (2016)
Publisher : Universitas Sumatera Utara

Soil biota plays an important role several processes in soil. They are enchancing plant growth as inorganic fertilizer such as NPK complete fertilizer. This research was conducted to study population of some species of bacteria at Gajah Village, Sei Balai Subdistrict, Batubara District. The research was a survey by purposive sampling method that aimed to compare soil bacterial population (Azotobacter spp., Bacillus spp. and Lactobacillus spp.) in the oil palm’s weeded circle. The research was done by taking 60 soil samples in the oil palm’s weeded circle. The result showed that the population of bacteria Azotobacter spp. around the weeded circle of oil palm applied with the NPK complete differed with the oil palm’s weeded circle that has not been given a NPK complete fertilizer. The relationship between the occurrences of soil bacteria with the soil properties showed that the presence of Bacillus spp. affected the water soil content and the nitrogen total. Keywords: Azotobacter spp., Bacillus spp., Lactobacillus spp., NPK complete fertilizer

Perkembangan Cacing Pontoscolex corethrurus Pada Media Kultur dengan Berbagai Jenis Tekstur Tanah dan Bahan Organik Andi Andi; Tengku Sabrina; Mariani Sembiring
Jurnal Agroekoteknologi Vol 5, No 2 (2017)
Publisher : Universitas Sumatera Utara

Application of Pontoscolex corethrurus gives the positive effect to soil properties. Recently, P.corethrurus is directly collected from field which are time consuming and costly. This research aimed to determine the best organic matter and soil texture types as the artificial culture medium in supporting the P.corethrurus growth. This research was conducted in Ecological and Biological Laboratory, Agriculture Faculty, University of Sumatera Utara. This research was conducted in two phases, with using factorial randomized block design. The first factor was types of soil texture i.e. sandy loam (60% sand; 24% silt; 16% clay), Clay (28% sand; 20% silt; 52% clay), clay loam (36% sand; 28% silt; 36% clay). The second factor was types of organic matter i.e. without organic matter, cow manure, sheep manure, and hevea leaf litter. The result showed that in both phases of experiment the best soil texture types in increasing earthworm biomass and cocoon number of P.corethrurus was sandy loam, following with treatment on texture clay loam, and clay respectively. The best organic matter treatments in increasing earthworm biomass and cocoon number of P.corethrurus in phase 1 was sheep manure, cow manure, Hevea leaf litter, and without organic matter respectively. Application of sheep manure on sandy loam soil and application of sheep manure on clay soil had the same potency in increasing P.corethrurus biomass only in first phase experiment. Keywords : Culture medium, Earthworm application, Organic matter, Pontoscolex corethrurus, Soil texture

The Effect of Composition Between Top Soil, Sinabung Volcanic Ash and Oil Palm Empty Fruit BunchesCompost as a Growing Mediumon the Growth of Deli Tobacco (Nicotiana tabacum L.) Josef Tohap Leonardus Manalu; Jonis Ginting; Tengku Sabrina
Jurnal Agroekoteknologi Vol 5, No 4 (2017)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determine the effect of planting media consist of top soil, Sinabung volcanic ash and oil palm empty fruit bunches compost on the growth of Deli tobacco. The research was conducted at Balai Penelitian Tembakau Deli (BPTD) Sampali, Sub District Percut Sei Tuan, District Deli Serdang, Province North Sumatera with+ 15 m above sea level, began from May until July 2015. The research was arranged with a non-factorial randomized block design which was consisting of 6 treatments of top soil : volcanic ash : oil palm empty fruit bunches compost ratio that is M0 (15kg: 0kg: 0kg), M1 (12kg: 2,5kg: 0,5kg), M2 (12kg: 2kg: 1kg), M3 (12kg: 1,5kg: 1,5kg), M4 (12kg: 1kg: 2kg), M5 (12kg: 0,5kg: 2,5kg).The parameters observed were plant height, stem diameter, number of leaf, sand leaf lenght, feet leaf I length, sand leaf width, feet leaf I width, the thickness of sand leaf and the thickness leafI. The result showed that volcanic ash and oil palm empty fruit bunches compost significantly affected to plant height at 46 days after planting, stem diameter at 18-39 days after planting, number of leaf at 25-46 days after transplanting, sand leaf length, feet leaf I length, sand leaf width and feet leaf I width. Volcanic ash and straw compost did not significantly affected to plant height at 18-32 days after planting, stem diameter at 46 days after planting, number of leaf at 18 days after transplanting, the thickness of sand leaf and the thickness leaf I. Keywords: Deli tobacco, oil palm empty fruit bunches compost, volcanic ash

Co-Authors Abdul Rauf Adhe Eva Yolanda Adnan Buyung Nasution Ali Ikhwan Alida Lubis Alwi Alwilo Haryada Alwi Haryada Andi Andi Andi Pratama Arif NURYAWAN Arjuna Sitepu Asmarlaili Sahar Ayulia Indah Utami Azri Syauki Benny Hidayat Daniel Matondang, Darmadi Erwin Harahap Deni Elfiati Devi Andriani Luta Diana Sofia Hanafiah Doli Saputra Hasibuan Ebet Stephanus Romunta Sinulingga Edi Sigit Sutarta Edison Purba Erwin Masrul Fauzi Fauzi Fauzi Fauzi Fitra Syawal Harahap Fitra Syawal Harahap fitria fitria Hardy Guchi haryanzelina bancin Haryati Jannerson Munthe Jonatan Ginting Jonis Ginting Josef Tohap Leonardus Manalu Kemala Sari Lubis Lili Fauziah Lubis Nursiani M Reza Alfikri M. Qodri Nugraha Marahadi Siregar Mariani sembiring Miftahul Jannah mira aripin panjaitan Mohd Hasmadi Ismail Muhammad Fuad Abdullah Muhammad Isnan Muhammad Riza Hapiza Mukhlis, Mukhlis Netanya Panggabean Nini Rahmawati Nur Ulina Warnisyah S Sebayang Nur Ulina Warnisyah Sebayang Nurhayati Nurhayati Nursiani Lubis Nurul Annisa Lubis Peter Aning Tedong Posma Marbun Rahmawaty, Rahmawaty Rauf Abdul Razali Risky Ananda Rizka Anisa Putri Rizki Kurniawan Rizky Mardiana Nasution Sarifuddin Sarifuddin Satia Negara Lubis Seca Gandaseca Siti Kholizah Supriadi Supriadi Syafitra Ibadillah T. Alief Aththorick Yeni Afrida

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