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All Journal Jurnal Agroekoteknologi Jurnal Agro Industri Perkebunan JEPA (Jurnal Ekonomi Pertanian dan Agribisnis) Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Agroplasma Best Journal (Biology Education, Sains and Technology) Abdimas Toddopuli: Jurnal Pengabdian Pada Masyarakat Jurnal Biogenerasi Madaniya Jurnal Agro Estate JAGROS : Jurnal Agroteknologi dan Sains (Journal of Agrotechnology Science) Jurnal Pengabdian Masyarakat : Pemberdayaan, Inovasi dan Perubahan Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan JURNAL AGROTEKNOSAINS All Fields of Science Journal Liaison Academia and Sosiety Jurnal Agro Estate Jurnal AGROFOLIUM

Muhammad Yusuf Dibisono

Institut Teknologi Sawit Indonesia

Author-ID : 7037227

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ANALISIS TOTAL MIKROBA, BAHAN ORGANIK DAN RESPIRASI TANAH PADA LAHAN APLIKASI DAN TANPA APLIKASI TANDAN KOSONG KELAPA SAWIT Sakiah Sakiah; Muhammad Yusuf Dibisono; Reza Ikbal Irawan
Jurnal Agro Estate Vol 2 No 2 (2018): Desember 2018
Publisher : Institut Teknologi Sawit Indonesia

This study aims to determine the total microbes, organic matter and soil respiration on application land and without the application of empty fruit bunches. The research was conducted at Begerpang, PT. London Sumatera as the location for taking soil samples, the soil is analyzed in the Soil Biology Laboratory of the Faculty of Agriculture, USU and the Soil and Fertilizer Laboratory, STIP-AP which runs from May to September 2018. The study used Factorial Randomized Block Design, consisting of two factors. Factor 1: sampling area, Factor depth of sampling from ground level. The results showed the average microbial total on the application of oil palm empty fruit bunches 17,05 CFU / ml, organic matter 7,25% and soil respiration 3,18 mg CO2 while on land without the application of oil palm empty bunches the total microbial 3,55 CFU / ml, organic matter 5,07% and soil respiration 2,75 mg CO2. The average total microbes, organic matter and soil respiration is highest at a depth of 0-10 cm. Total microbes are positively correlated with organic matter and soil respiration, the correlation coe cient between total microbes and organic matter is 0.977, between total microbes and soil respiration 0.868 .

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

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.

AGRESIVITAS DAN DINAMIKA POPULASI KUNJUNGAN SERANGGA PENYERBUK Elaeidobius kamerunicus Faust. (Coleoptera : Curculionidae) PADA BUNGA TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KEBUN GREA PT. KARYA HEVEA INDONESIA BANGUN PURBA SUMATERA UTARA Muhammad Yusuf Dibisono; Guntoro Guntoro; Widia Lista Nasution
Jurnal Agro Estate Vol 1 No 2 (2017): Desember 2017
Publisher : Institut Teknologi Sawit Indonesia

Elaeidobius kamerunicus is one of the weevil pollinator of oil palm. Weevil pollinator, E. kamerunicus in plantation is useful to increase fruit set. Continuity of the oil palm pollination require minimal amount of the weevil. This research to know aggressiveness and population dynamic of the weevil E. kamerunicus in ﬂower of oil palm at Grea Estate PT. Karya Hevea Indonesia. This research uses descriptive analysis method consists of observing and collecting data about the aggressiveness and population dynamics of weevil pollinators visit in anthesis male ﬂowers and receptive female ﬂowers of oil palm of seven years after planting. Observations were made on an hourly basis, starting at 08:00 am until 15:00 pm. Observations were made daily on trees with receptive ﬂowers and anthesis ﬂowers, carried out for 20 days with a different tree every day. The results showed that the aggressiveness of the weevil Elaeidobius kamerunicus as the main oil palm pollinating insect had a signiﬁcant difference in interest. Where E. kamerunicus tend to be more aggressive to visit the male ﬂower anthesis as many as 1399 tails of the visiting receptive female ﬂower that only 25 tails. Effect of temperature on the population dynamics of E. kamerunicus visit also differ between male ﬂowers and female ﬂowers. For male ﬂowers, E. kamerunicus is more active at 27 ° C. While in the female ﬂowers, E. kamerunicus is active at 30 ° C. E. kamerunicus actively visited male anthesis ﬂowers and receptive female ﬂowers at 63% and 62% moisture respectively.

KERAGAMAN GULMA PADA TANAMAN KELAPA SAWIT (Elaies guineensis Jacq.) BELUM MENGHASILKAN DAN SUDAH MENGHASILKAN DI KEBUN RAMBUTAN PT. PERKEBUNAN NUSANTARA III Ahmad Saleh; M Yusuf Dibisono; Sabar Ukur Gea
Jurnal Agro Estate Vol 4 No 1 (2020): Juni 2020
Publisher : Institut Teknologi Sawit Indonesia

Weeds are undesirable plants because they can compete with the oil palm. Weed growth can reduce the production of bunches by 20%. Weeds are not only due to competition against nutrients but also produce allelopathic substances that are toxic to oil palm. Inventory and find out the dominance of weed species is needed in the management of effective weed control. The study aims to determine the diversity of weeds in different areas of planting year. This study used a sampling method carried out on two mature areas (18 years and 8 years) and an immature area (1 year), with the direct observation method. Every planting area is made of 2 large plots with a size of 20 m x 60 m at interrow of palm, then inside there are made 6 small plots with a size of 2 x 2 m. Data were analyzed with SDR (Summed Dominance Ratio) value to determine the dominant weed species. The diversity of weeds from each area is varied, there are 29 species of weeds and 20 families, nevertheless, there are 5 species of weeds found in all areas of study; O. nodusa, Poaceae; C. kyllingia, Cyperaceae; A. comressus, Poaceae; P. Niruri, Phyllanthaceae; A. spinous, Amaranthaceae. The dominant weeds in the immature area are E. indica, Poaceae while in the mature areas are O. nodosa, Poaceae.

Co-Authors Abdi kusuma Ahmad Saleh Aida Farida Apip Gunaldi Ardhi, Muhammad Khalifatul Dalimunthe, Fachrurrozi Dini Mufriah Dini Mufriah Dini Mufriah Eka Bobby Febrianto, Eka Bobby Elly Dani Eri Samah Friska Anggraini Barus Guntoro Guntoro, Guntoro Handoko, Habib Hardy Wijaya Hari Gunawan Hari Muda Hariri, Syauqi Hasibuan, Henry Budi Hasibuan, M Arief Hendrik Dharmansyah Henry Budi Hasibuan Hermansyah Hermansyah Jayawarsa, A.A. Ketut Juhari, Habi Lisdayani, Lisdayani Lubis, Fadli Akbar Maisarah Maisarah Makhrani Sari Ginting Mariani sembiring Maulana, Imron Misdawati, Misdawati Muhammad Syahdan Mulyara, Budi Nadhira, Ahmad Nurliana Nurliana Rafael Remit Winardi Rahmad Dian Rahmad Dian Raply Sitorus Ratu Mutiara Siregar Reza Ikbal Irawan Riky Aspandy Rini Sulistiani Sabar Ukur Gea Sakiah Sakiah Sari Ginting, Makharani Sibagariang, Roga Oloan Simbolon, Hasanal Fachri Satia Sinta Diana Siti Aisyah Sulthon Parinduri Susanti Susanti Susanti Susanti Wahyuda, Nurul Wanda Sandy Pratama Widia Lista Nasution

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