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Megawati Siahaan
Institut Teknologi Sawit Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Other

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Journal : Jurnal Agro Estate

 1 
STRATEGI PENINGKATAN PRODUKTIVITAS TANAMAN KELAPA SAWIT MELALUI PENDEKATAN MANAJEMEN BLOK DI PERKEBUNAN KELAPA SAWIT SKALA LUAS Megawati Siahaan; Hardy Wijaya
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 (450.069 KB) | DOI: 10.47199/jae.v4i1.117

Abstract

Increasing the productivity of oil palm is one of criteria success for field assistant in manage of afdeling/division. Field assistant in oil palm plantation has responsibility to control 500-800 ha depend on the policy of company. All acreage are divided block by block which size is 25-30 ha each. Block is designed to be homogeneous by arrange plant, silt, road, and etc appropriate the criteria, that makes easy to manage. But the facts, blocks has various for one to another and then must be handling with various way. Management Block Approach is one of the best way to evaluate and find the root cause. This methode can use to increase oil palm productivity. Problems in blocks not singular but many factors must be analysis. 3 Steps use in management block are gap analysis, analysis of root cause by fishbone method and Problem Identifications and Corrective Action (PICA) concepts. This method have tried in many company.
PENGARUH PEMBERIAN KOMPOS KULIT KAKAO (Theobroma cacao L.) DAN KOMPOS KULIT PISANG KEPOK (Musa acuminata L.) TERHADAP PERBAIKAN SIFAT FISIKA DAN KIMIA TANAH PADA PEMBIBITAN KELAPA SAWIT (Elaeis guineensis Jacq.) Di MAIN NURSERY Rina Maharany; Megawati Siahaan; Muhammad Syawaluddin Hasibuan
Jurnal Agro Estate Vol 4 No 2 (2020): Desember 2020
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v4i2.179

Abstract

Seiring dengan kenaikan produksi CPO (Crude Palm Oil) setiap tahunnya, maka menyebabkan peningkatan luas areal kebun kelapa sawit. Di Indonesia luas lahan marginal masih sangat banyak. Kompos kulit kakao dan kulit pisang kepok merupakan sumber bahan organik yang dapat meningkatkan kesuburan tanah dan tanaman. Oleh karena itu diperlukan perbaikan tanah dipembibitan kelapa sawit dengan meningkatan ketersediaan unsur hara dan sifat kimia tanah, melalui pemberian atau penambahan pupuk organik. Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian kompos kulit kakao, kompos kulit pisang serta interaksi perlakuan antara kompos kulit pisang dan kulit kakao terhadap perbaikan sifat fisik, dan kimia tanah di pembibitan kelapa sawit. Penelitian ini dilaksanakan di areal pembibitan Sekolah Tinggi Ilmu Pertanian Agrobisnis Perkebunan Medan mulai bulan Januari - Agustus 2020. Hasil penelitian menunjukkan bahwa kompos kulit pisang kepok berpengaruh nyata terhadap parameter kadar air dengan nilai terbaik adalah 24,77 yang terdapat pada perlakuan P3 (450 g/tanaman). Dan parameter kemasaman tanah (pH) dengan nilai terbaik adalah 5,68 yang terdapat pada perlakuan P3 (450 g/tanaman). Kompos kulit kakao menunjukkan pengaruh nyata terhadap parameter kadar air dengan nilai terbaik adalah 24,35 % yang terdapat pada perlakuan P3 (600 g/tanaman). Dan parameter kemasaman tanah (pH) dengan nilai terbaik adalah 5,75 yang terdapat pada perlakuan P3 (600 g/tanaman). Interaksi antara perlakuan kompos kulit kakao dan kompos kulit pisang juga menunjukkan pengaruh yang nyata terhadap parameter N-total dengan nilai terbaik adalah 0,13 yang terdapat pada perlakuan K1P2 (400 g kompos kulit kakao dan 350 g kompos kulit pisang).
EFEKTIVITAS DAN EFISIENSI PEMAKAIAN DRONE FIXED WING PADA PEMETAAN KEBUN DAN SENSUS POHON KELAPA SAWIT (Elaeis guineensis Jacq) Megawati Siahaan; Sri Murti Tarigan; Tuty Ningsih; Sandy Simangunsong; Ridho Hikmawan
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.v5i1.185

Abstract

Drone is an unmanned aircraft (Unmanned Aerial Vehicle), which is an electro-mechanical based system that can perform programmed missions, with the following characteristics: (i) unmanned, (ii) operating in fully or partially independent mode, (iii) ) This system is designed to be used repeatedly. The drone is equipped with a high-resolution camera that allows users to monitor a specific location from a height in real time. The use of mapping photos (Mapping Block) using drones is usually used to calculate the principal amount of oil palm trees. This research was using drone fixed wing tipe and was conducted in Tamiang Hulu District, Aceh Tamiang District Nanggroe Aceh Darussalam. This research was conducted from 25-28 August 2020. This study used a descriptive analysis method. The results of this study indicate that the time used to prepare for the use of drones is 30 minutes, for taking aerial photographs and flying time for 25 minutes, combining photos using the Agisoft Photoscane software for 45 minutes, making way points and calculating the number of trees using the Arcgis application for 5 hours, making printout data for 60 minutes, so that the total time for all work is 7 hours 40 minutes for 53.53 hectares, assuming the cost per hectare is Rp.8,583, if with a manual census the time needed is 72 hours, with average costs -average Rp. 56,374, - / ha. Conclution of this research by using drones will be more effective and efficient than manual tree census.
PENGARUH PEMBERIAN BEBERAPA SUMBER UNSUR HARA N TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq) DI PEMBIBITAN UTAMA Megawati Siahaan; Arief Setiawan Sutanto; Sion Calvin Simanjuntak
Jurnal Agro Estate Vol 5 No 2 (2021): Desember 2021
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v5i2.219

Abstract

The establishment of oil palm plantations is starting from nursery which criteria has been standardized by the seeds produced. Nitrogen is one of the essential nutrients which determine the growth of oil palm (Elaeis guinensis Jacq) at the main nursery. Nitrogen has many sources which are produced from synthetics or natural sources, but on the other side, the pricing of fertilizers was increased any time and then must find an alternative which one is more effective and efficient. The effects of few nitrogen sources to the growth of oil palm in the main nursery is the objective of this research. The experiment was non factorial in a randomized complete block design comparing between N1 (urea Fertilizer), N2 (ZA Fertilizer), N3 (liquid organic fertilizer 60 ml/liter H2O had been extracted from Azolla microphylla), N4 (Azolla microphylla green manure 50 g/polybag) and N5 (Azolla microphylla composted 50 g/polybag) with five replications. The research showed that the height of oil palm in the nursery was not significantly affected by five nitrogen sources 2 and 4 weeks after treatment but significantly on 6, 8, 10 and 12 weeks, the higher plant found at N4 on12 weeks after treatment. Five Nitrogen sources were used not significantly affected amounts of leaves on 2 and 4 weeks but significantly affected on 6, 8, 10 and 12 weeks after applications. In the 12th week applications showed the most leaves on N3 but not significantly different from N4. Circumference of the stem after 2, 4, 6, 8 and 12 weeks after applications were not affected by five nitrogen sources but weight of the roots on fresh and dry conditions were affected by the treatment on 12th weeks which was N5 showed the highest but not different with N3 and N4; longs of the roots was not affected by the treatment. Composted, green manure as good as liquid organic fertilizer from Azolla microphylla had effects on amounts of leaves, height of plant, fresh and dry root weight. Azolla microphylla has the potential to be used as a source of nitrogen fertilizer on fertilizing oil palm at the main nursery.
Co-Authors Arief Setiawan Sutanto Dedi Andrial Siregar Habib Prayitno Hardy Wijaya Hardy Wijaya Hari Gunawan Imam Khairi Muhammad Syawaluddin Hasibuan Muhammad Syawaluddin Hasibuan Ridho Hikmawan Ridho Hikmawan Rina Maharany Sandy Simangunsong Sandy Simangunsong Sion Calvin Simanjuntak Sion Calvin Simanjuntak Sri Murti Tarigan Tuty Ningsih