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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 Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Jurnal Pendidikan, Sains dan Teknologi

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 Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences

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Evaluasi Sifat Biologi Tanah Tanaman Kopi Arabika (Coffea arabica L.) pada Beberapa Kecamatan di Kabupaten Mandailing Natal Daniel Matondang,; T. Sabrina; Hardy Guchi
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Kopi merupakan salah satu komoditas pertanian yang mempunyai nilai ekonomi cukup tinggi. Daerah Mandailing Natal merupakan salah satu daerah penghasil kopi di Indonesia. Penelitian ini bertujuan untuk mengevaluasi sifat biologi tanah antara lain C-organik, N-total, respirasi tanah dan total mikroorganisme tanah terhadap produksi kopi. Penelitian ini dilakukan metode survei. Sampel diambil dengan metode acak sengaja berdasarkan produksi dengan parameter yang diukur yaitu C-organik, N-total, respirasi tanah dan total mikroorganisme tanah. Data dianalisis dengan metode analisis komponen utama. Hasil penelitian menunjukkan bahwa sifat biologi tanah terbagi atas dua faktor, yaitu faktor “Nitrogen dan Mikroorganisme” dan faktor “Bahan Organik”. Baik faktor “Nitrogen dan Mikroorganisme” maupun faktor “Bahan Organik” mempengaruhi produksi secara positif.Kata kunci : Sifat Biologi Tanah, Produksi Biji Kopi, Mandailing Natal

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

PENGARUH PENGGUNAAN BIOCHAR BIOMASSA KELAPA SAWIT TERHADAP AKTIVITAS MIKROORGANISME PADA TANAH ULTISOL Benny Hidayat; Nurul Annisa Lubis; T. Sabrina
Jurnal Agro Estate Vol 5 No 1 (2021): Juni 2021
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v5i1.187

Biologi tanah merupakan sifat yang mencerminkan kehidupan di dalam tanah sebagai salah satu indikator kesuburan tanah yag real, yangmerupakan interprestasi dari sifat kimia dan biologi tanah. Kehidupan di dalam tanah sangat di pengaruhi dengan status karbon dalam tanah, dan biochar merupakan bentuk karbon organic yang menjadi simpanan karbon pada masa yang lama. Kelapa sawit memiliki biomassa yang sangat banyak dan belum termanfaatkan secara maksimal, sehingga pemanfaatan biomassa kelapa sawit sebagai sumber karbon dalam bentuk biochar masih banyak yg belum diketahui. Sehingga tulisan ini bertujuan untuk mengali potensi biomassa kelapa sawit sebagai biochar untuk kehidupan di dalam tanah, karena akan berpotensi menjaga kestabilan kesuburan tanah untuk masa yg lama.

PERAN APLIKASI PEMBENAH TANAH TERHADAP SIFAT KIMIA TANAH PADA TANAMAN BAWANG MERAH Devi Andriani Luta; Marahadi Siregar; T. Sabrina; Fitra Syawal Harahap
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 1 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

The aim of the study was to elucidate the role of ameliorant application on the chemical properties of soil on onion plants. This research was carried out at the Deli Sub-district research area and soil chemical analysis was carried out in the research and technology laboratory of North Sumatra University and experimental garden laboratory and University of Pembangunan Panca Budi Medan. The research includes land preparation, plant preparation, maintenance such as watering, soil improvement applications (biochar and municipal waste compost) according to treatment, weed control, insertion and management of plant pests.The study used a randomized block design with 2 factors and 2 blocks. Further test using orthogonal contrast test. The results showed that ameliorant application was able to improve pH, Organic-C, CEC and N-total- N of the soil.

Implementasi Kriptografi dengan Metode Caesar Cipher untuk Mengamankan Data File di Javanetbeans haryanzelina bancin; mira aripin panjaitan; sabrina putri; Adnan Buyung Nasution
Jurnal Pendidikan, Sains Dan Teknologi Vol. 2 No. 1 (2023): Januari - Maret
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jpst.v2i1.438

The rapid development of information and telecommunications technology makes it easier for us to carry out activities in the form of confidential files or data, therefore data security is needed to secure confidential files. This research was conducted to implement Caesar cipher cryptography. Where Cryptography can only be carried out by certain people who understand its use so that Cryptography can be categorized as a safe place to store confidential data. This system uses the caesar cipher algorithm which is processed with the Java NetBeans program to produce ciphertext. Where files that can be encrypted are text document files with the .txt extension. txt data is a Domain Name Service (DNS) data type that contains text information sources for sources within the domain, by adding to the domain a file with the .txt extension can be used for various important purposes. The result of this research is a cryptographic implementation of the Caesar cipher method to secure data files in Javanetbeans. So it can be concluded that data security using the Caesar Cipher method is proven to work on Java Netbeans.

Analisis Jurnal Multimedia Menggunakan Teknik Animasi 2 Dimensi Sabrina Putri; Muhammad Isnan; Nurhayati; Alwi Haryada; Ali Ikhwan
Jurnal Pendidikan, Sains Dan Teknologi Vol. 2 No. 1 (2023): Januari - Maret
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jpst.v2i1.442

Information and Communication Technology is developing very rapidly. One of the rapidly growing technologies today is Multimedia. Where Multimedia learns about 2-dimensional and 3-dimensional animation techniques. The material is also about animation, video, and others. This multimedia learning media can also be done through power point which is really needed by students in general. The role of information technology in the modern era is very much and maybe it can become the main foundation of science because all information and knowledge has entered the digital era. Starting from the fields of education, military, business, industry to health, they really need technology and information is conveyed, which previously may have been limited, now it can spread widely to all corners of the world using the internet. The use of information technology must also be monitored and guarded so that unwanted use does not occur, even though this information technology has many positive impacts, we must be aware of the negative impacts for the next generation as well.

Co-Authors Abdul Rauf Adhe Eva Yolanda Adnan Buyung Nasution alfikri, m reza Ali Ikhwan Alida Lubis Alief Aththorick Alwi Alwilo Haryada Alwi Haryada Andi Andi Andi Pratama Arif NURYAWAN ASMARLAILI SAHAR Ayulia Indah Utami Azri Syauki Benny Hidayat Daniel Matondang, 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 Harahap, Darmadi Erwin Hardy Guchi haryanzelina bancin Haryati Jannerson Munthe Jonatan Ginting Jonis Ginting Josef Tohap Leonardus Manalu Kemala Sari Lubis Lili Fauziah M. Qodri Nugraha Marahadi Siregar Mariani sembiring mira aripin panjaitan Mohd Hasmadi Ismail Muhammad Fuad Abdullah Muhammad Isnan Muhammad Riza Hapiza Mukhlis, Mukhlis Netanya Panggabean Nur Ulina Warnisyah S Sebayang, Nur Ulina Warnisyah S Nurhayati Nurhayati Nurul Annisa Lubis Peter Aning Tedong Posma Marbun Rahmawaty, Rahmawaty Razali Risky Ananda Rizka Anisa Putri Rizky Mardiana Nasution Sarifuddin Sarifuddin Satia Negara Lubis Seca Gandaseca Siti Kholizah Supriadi Supriadi Syafitra Ibadillah Yeni Afrida

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