Article Per Year (5 Year)
p-Index From 2021 - 2026
1.037
P-Index
This Author published in this journals
All Journal Jurnal Farmasi Udayana Agrikultura AGROEKOTEKNOLOGI JURNAL ILMU PERTANIAN Jurnal Penelitian Pertanian Terapan Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Jurnal Agro Estate Journal La Lifesci 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.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology

Published : 44 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : Jurnal Agro Estate

 1 
PENGARUH SUHU DAN KELEMBABAN TERHADAP POPULASI ARTHROPODA PADA LAHAN APLIKASI DAN TANPA APLIKASI LIMBAH CAIR PABRIK KELAPA SAWIT Sakiah Sakiah; Mariani Sembiring
Jurnal Agro Estate Vol 2 No 1 (2018): Juni 2018
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (910.388 KB) | DOI: 10.47199/jae.v2i1.28

Abstract

Arthropods play a role in the decomposition process of organic matter. The existence of arthropods in soil is affected by environment. This research is aiming to find out the temperature of humidity and population of arthropods in a difference distance from the plate and ditch of application towards application field and without application of palm oil mill effluent (POME). The research is done in Bukit Maradja Estate, PT. SIPEF in April to August 2017. The research design is used random design of factorial group, the fist factor is the sampling area, the second factor is the distance from the plate to the application ditch. The parameter testing arranged on the list of variance and Least Significance Difference (LSD) test, with 5% value. The research result showed temperature and population of arthropods is no different between application area and without application area (POME), while soil humidity showed significance difference between application area and without application area (POME). Temperature, humidity and population of arthropods has no significance difference in sampling area 0cm, 100cm, 200cm, 300cm and 400cm from plate edge and POME application ditch. The number of arthropods is affected by temperature and soil humidity. In application area of POME was found 5 classes of arthropods and 34 species. Population of arthropods in POME application area is 261 individuals and without POME application is 146 individual.
PENGARUH KACANGAN PENUTUP TANAH Mucuna bracteata TERHADAP BEBERAPA SIFAT FISIK DAN KIMIA TANAH ULTISOL PADA PERKEBUNAN KARET (Hevea brasiliensis) Sakiah Sakiah; Mariani Sembiring; Tosuko Utomo
Jurnal Agro Estate Vol 2 No 1 (2018): Juni 2018
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (705.165 KB) | DOI: 10.47199/jae.v2i1.29

Abstract

The objective of this research is to find out the influence of Mucuna bracteata as cover crop on some physical and chemical properties of ultisol at rubber plantation area with immature plant period on flat and slope ultisol area. The research was conducted at Bandar Pinang Estate, PT. Tolan Tiga Indonesia (SIPEF Group), Desa Bandar Pinang, Bintang Bayu Sub-district, Serdang Bedagai District, Sumatera Utara Province from May to August 2016. Soil sampling is distinguished by plant age, topography and the presence of cover crop (Mucuna bracteata). The soil is taken composite by the zigzag method. From each point is taken as much as 1 Kg of soil using a soil drill at a depth of 0-20 cm then mixed well and used as much as 5 Kg. Data processing is done descriptively. The observation parameters were soil texture, bulk density, infiltration, organic matter content, nitrogen content and soil pH. Mucuna bracteata planting was influencing on some physical and chemical properties of ultisol in rubber plantation. The role of Mucuna bracteata to physical properties of ultisol is to fix bulk density in flat area as 9.22% and on slope area as 2.19%. The average infiltration class goes into the quick criteria and the soil texture is sandy loam soil. The role of Mucuna bracteata to chemical properties of ultisol is to increase soil organic matter in flat area as 44.96% and on slope area as 59.15%, increase the soil nitrogen level in the flat area as 57.14% and in the slope area as 91.67%, there was no significant difference between pH in both flat and slope areas.
UJI ANTAGONISME BEBERAPA Trichoderma sp TERHADAP PENYAKIT BUSUK PANGKAL BATANG (Ganoderma boninense) PADA MEDIA PADAT DI LABORATORIUM Mariani Sembiring; Muhammad Yusuf Dibisono; Hendrik Dharmansyah
Jurnal Agro Estate Vol 1 No 1 (2017): Juni 2017
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.451 KB) | DOI: 10.47199/jae.v1i1.63

Abstract

Ganoderma boninense is afungus that causes the disease rotting the roots (basal stem rot). Infection and disease transmission generally occurs through the contact ofthe root or the base ofthe stem with a source inokulum in the ground. Ganoderma boninense can cause death in plant oil palm. Trichoderma sp saprofik is a fungus that lives in the soil, litter, dead wood, and living in various places. Easy to find, quickly, and which were capable o f killing other fungi. Based on this research done antagonism Trichoderma sp Ganoderma boninense against media PDAS.This research was carried out in the laboratory ofSoil Biology Faculty ofAgriculture University ofNorth Sumatra. This research was carried out on 15 June-6 July 2016. This study used a Randomized Complete Design method (RAL) non Factorial treatment 2 and 11 replicates. Testing conducted the smallest Real Difference test (BNT) and the 5% level. The research results showed that T4 Treatment (g. boninense + 1. harzianum) produces the best drag power against pathogen growth o f g. boninense with percentage o f barriers of 344.53% showed that treatment oft. harzianum was able to inhibit the growth ofg. boninense process occurs through inhibition ofantagonistic mechanism ofthe inhibitory zones are characterized by thepresence.
ISOLASI DAN UJI POTENSI BAKTERI PELARUT FOSFAT DARI LAHAN PERKEBUNAN KELAPA SAWIT (Elaeis guineensis Jacq.) Mariani Sembiring; Imam Ramadhan; Tioner Purba
Jurnal Agro Estate Vol 4 No 1 (2020): Juni 2020
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.976 KB) | DOI: 10.47199/jae.v4i1.128

Abstract

Phosphate solubilizing bacteria has high potential in dissolving P bound into P available in the soil, the mechanism of dissolving P related to the activity of the microbes concerned in producing enzymes and organic acids. This research aims were to determine the type and ability of bacteria that can dissolve P. This research was conducted at the Soil Biology Laboratory, Faculty of Agriculture, University of Sumatera Utara (USU) in January-June 2019. The observed parameters were the population of phosphate solubilizing microorganisms, potential test on solid media from several P sources, analysis of organic acids using the High-Performance Liquid Chromatography (HPLC) method, identification of bacteria by Polymerase Chain Reaction Sequences (PCR-Sequence). The analysis results indicated that the microbes which had the highest ability to dissolve P and produce organic acids were isolates with B1 code and the results of PCR-Sequence identification of B1 isolates were Burkholderia sp strain IBP-VNS5.
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 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 Manullang, Yedija 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