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Jurnal Agro Estate
Published by Institut Teknologi Sawit Indonesia
ISSN : 25800957     EISSN : 26564815     DOI : https://doi.org/10.47199/jae.v7i1
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
Jurnal Agro Estate adalah Jurnal Ilmiah Budidaya Perkebunan yang menyajikan hasil penelitian dan telaah ilmiah dari Dosen, Peneliti, Praktisi, Mahasisa dalam bidang perkebunan. Topik utama yang diterbitkan mencakup: 1. Aspek Agronomi 2. Tanah dan Konservasi 3. Perlindungan Tanaman 4. Manajemen Tenaga Kerja (SDM) 5. Manajemen Keuangan 6. Aspek Kelestarian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 85 Documents
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PENGGUNAAN SENYAWA OSMOLIT DAN ALKALIN PADA PENYADAPAN TANAMAN KARET (Hevea brasiliensis) Mochlisin Andriyanto; Miftahul Huda Fendiyanto
Jurnal Agro Estate Vol 3 No 2 (2019): Desember 2019
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.826 KB) | DOI: 10.47199/jae.v3i2.101

Abstract

Stimulants are one of the common ways to increase yield in rubber plants. Recent, the stimulant that is widely used in rubber tapping is ethephon. Ethephon material can prolong the flow of latex so that yield increases. The combination of osmolyte and alkaline compounds is expected to be an alternative stimulant. Therefore, this study aimed to examine the use of osmolytes and alkaline in rubber plants. This research was conducted at the Experimental Design of the Sungei Putih Estate Research, Deli Serdang, North Sumatra in May-September 2016 with PB 260 clones planting year 2010 with a tapping system S/2 D3 Ga1.0 6 / y (m) in panel B0-2. The experimental design used was a Randomized Complete Block Design (RCBD) with 28 combinations of treatments. The observation parameters in this study were yield (g/p/s), girth (cm) before treatment application and yield (g/p/s) and yield (kg/ha/year) after treatment application. The observations showed that the addition of stimulants with osmolyte and alkaline compounds had a significant effect yield on rubber (g/p/s) in the first tapping slices. The 5% osmolyte and 10% alkaline compounds have yield rubber which is comparable to the application of stimulants made from ethephon in the first tapping slices. Application of 5% osmolyte and 10% alkaline compounds can be used as an alternative stimulant in rubber plants.
KAJIAN HARA DAUN TANAMAN KARET : PERUBAHAN KEBIJAKAN PEMUPUKAN SLOW RELEASE KE FAST RELEASE Priyo Adi Nugroho
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 (476.88 KB) | DOI: 10.47199/jae.v4i1.114

Abstract

The policy change in application of fertilizer type is the common matter in the plantation company. A leaf nutrient content study of immature rubber trees that applied slow release (SRF) and fast release (FRF) fertilizer has been conducted in Sungei Putih Research Centre. The method of this study followed a descriptive-analysis method by comparing the content of N, P, K and Mg on the leaf of immature rubber trees under application of SRF and FRF. The results indicated that N leaf content with SRF application significantly higher (P<0.01) than FRF consecutive 3.15% and 2.93%. The similar circumstance also occurred in P leaf content i.e. 0.25% and 0.19% respectively. Conversely, K and Mg content in SRF application was significantly lower than FRF (P<0.01). K and Mg content was 0.94% and 0.27% in SRF meanwhile in FRF, K and Mg content was 1.2% and 0.33%. The nutrient status of N and P in SRF application was better compared to in FRF. On the other hand the similar condition did not appear in nutrient status of K and Mg. The status of K in SRF application was not better other than FRF application. In the meantime there was no different of Mg status between SRF and FRF application.
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.
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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (907.101 KB) | DOI: 10.47199/jae.v4i1.131

Abstract

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.
EVALUASI PERTUMBUHAN DAN PRODUKSI KARET BEBERAPA KLON INTRODUKSI DI WILAYAH BERIKLIM BASAH Sayurandi Sayurandi
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 (452.405 KB) | DOI: 10.47199/jae.v4i1.132

Abstract

The purpose of this study was to evaluate the growth performance and rubber production of some introduced rubber clones in wet climates. Exactly seven introduced clones were tested in this research by using randomized block design non factorial. The testing clones were planted in Aek Pamienke-Labuhan Batu Utara Regency in 2005. The rainfall average over past ten years were 3036 mm/year and number of rainy days average were 145 days/year. The parameters observed in this research were plant growth on immature period, rubber production, and leaf disease resistance. The reseacrh results showed that clone PB 330 and PB 340 had girth growth highest at five years old namely 53.90 cm and 50.20 cm, respectively. Based on rubber production showed that clone PB 330, PB 340, and PB 260 had highest rubber production (kg/tree/year) namely 4.75 kg, 4.80 kg and 4.70 kg, respectively. Based on the resistance of leaf disease showed that the introduced clones were moderate resistant to Oidium and resistant to Colletotrichum and Corynespora
ANALISA JUMLAH KLOROFIL DAUN TERHADAP PRODUKSI BUAH KELAPA SAWIT (Elaeis guineensis Jacq.) PADA DATARAN TINGGI DI KEBUN BAH BIRUNG ULU PTPN IV SUMATERA UTARA Aulia Juanda Djs; Eka Bobby Febrianto; Binsar Mangatur Tua Sinambela
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 (368.623 KB) | DOI: 10.47199/jae.v4i1.135

Abstract

The height of one of the external factors that affect production. Chlorophyll is one of the factors that can affect palm oil production. There are several other factors that affect the productivity of oil palm plants, namely climate, territorial shape, soil conditions, planting material, and cultivation techniques. Altitude (altitude) is one of the outside factors that affect production. Differences in altitude cause differences in productivity so that production data need to be analyzed and compared. Height differences cause differences in productivity so production data need to be analyzed and compared. This research was conducted in the Bah Birung Ulu PTPN IV in April-June 2018. This study aims to determine the effect of altitude in the highlands area the effect of the amount of leaf chlorophyll on the production of oil palm fruit (Elaeis guineensis Jacq.). The method used is descriptive analytic method by processing secondary data (LM 76) and take leaf samples and measure chlorophyll content using chlorophyll meters. The results showed that in the highlands (Kebuna Bah Birung Ulu) had the highest production in 2006, amounting to 22,976 Ton / ha / year. The highest amount of chlorophyll of palm oil was found in the 2005 planting year, which was 80.5 CCI. The largest production of oil palm is in the 2006 planting year of 22,976 Ton / ha / year with 3,148 mm / year of rainfall.
PENGARUH PEMBERIAN PUPUK HAYATI MIKORIZA DAN PUPUK KASCING TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI PRE NURSERY Median Ramot Situmorang; Nur Ariyani Agustina; Bayu Pratomo
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.v4i2.143

Abstract

Penelitian ini bertujuan untuk mengetahui pertumbuhan bibit kelapa sawit setelah diberi pupuk hayati mikoriza dan pupuk kascing dengan dosis yang berbeda. Penelitian ini menggunakan metode eksperimen dengan Rancangan Acak Kelompok (RAK) 2 Faktorial. Faktor pertama adalah pupuk mikoriza yang terdiri dari 4 taraf yaitu: Kontrol (M0), 4 gr (M1), 8 gr (M2), 12 gr (M3) dan faktor kedua adalah pupuk kascing yang terdiri dari 4 taraf yaitu: Kontrol (K1), 40 gr (K1), 80 gr (K2), 120 gr (K3). Data dianalisis dengan menggunakan sidik ragam (Analysis of Variance), dilanjutkan dengan uji DMRT (Duncan’s Multiple Range Test) dengan signifikan 5 %. Berdasarkan hasil analisis data yang diperoleh bahwa perlakuan pupuk hayati mikoriza tidak berpengaruh nyata terhadap pertumbuhan kelapa sawit, sedangkan pemberian pupuk kascing berpengaruh nyata terhadap pertumbuhan tanaman kelapa sawit, serta interaksi berpengaruh nyata terhadap jumlah daun (3.00 helai) pada minggu ke 8 setelah tanam.
ANALISIS KELAYAKAN FINANSIAL KELAPA SAWIT RAKYAT DI KABUPATEN PASAMAN BARAT Tifany Zia Aznur; Fadli A Lubis; Makhrani S Ginting
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.v4i2.176

Abstract

Kelapa sawit mempunyai peran yang cukup strategis dalam. perekonomian Indonesia, akan tetapi perkebunan kelapa sawit rakyat dicirikan oleh berbagai kelemahan seperti lahan yang relatif sempit, diusahakan secara tradisional, produktivitas dan mutu rendah, serta posisi dalam pemasaran hasil lemah Penelitian ini bertujuan untuk mengkaji kelayakan finansial dan sensitivitas usahatani kelapa sawit rakyat di Kabupaten Pasaman Barat. Penelitian dilakukan di Kabupaten Pasaman Barat sebagai sentra produksi kelapa sawit di Provinsi Sumatera Barat. Pengambilan sampel dilakukan secara purposive berdasarkan umur tanaman, yakni umur 1 sampai 23 tahun. Data dianalisis dengan metode analisis deskriptif kuantitatif menggunakan analisis kelayakan melalui pendekatan Benefit-Cost dalam PAM dan analisis sensitivitas. Hasil penelitian menunjukkan bahwa secara finansial, usahatani kelapa sawit rakyat di Kabupaten Pasaman Barat layak dan menguntungkan petani yang dibuktikan dengan nilai B/C sebesar 1,36 dan nilai NPV sebesar 87.225.402,27. Hasil analisis sensitivitas dengan skenario jika pupuk anorganik tidak disubsidi pemerintah menunjukkan adanya penurunan keuntungan petani sebesar 42,3% akan tetapi usahatani kelapa sawit rakyat masih layak untuk tetap diusahakan.
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).

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