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Guntoro
Institut Teknologi Sawit Indonesia
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Pemanfaatan Gulma Berdaun Lebar sebagai Bahan Baku Kompos Pelet dan Kompos Curah dengan Durasi Pengomposan yang Berbeda Ahmad Dhairobi; Sakiah Sakiah; Guntoro Guntoro
Tabela Jurnal Pertanian Berkelanjutan Vol. 1 No. 1 (2023): Edisi Januari
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.011 KB) | DOI: 10.56211/tabela.v1i1.94

Abstract

Gulma merupakan tumbuhan yang hadirnya tidak dikehendaki, sifatnya mengganggu dan merugikan tanaman utama. Melalui perlakuan tertentu, gulma dapat diolah menjadi pupuk organik. Penelitian bertujuan untuk mengetahui mutu kompos curah dan kompos pelet dari gulma berdaun lebar dengan penambahan limbah pabrik kelapa sawit dengan durasi pengomposan yang berbeda. Penelitian menggunakan rancangan acak lengkap faktorial. Faktor 1 yaitu durasi waktu pengomposan (5 minggu dan 10 minggu), faktor 2 yaitu pemberian limbah pabrik kelapa sawit terdiri atas 4 taraf (tanpa pemberian limbah pabrik kelapa sawit; LCPKS 50 ml + solid decanter 50 gr; LCPKS 50 ml + solid decanter 75 gr; LCPKS 50 ml + solid decanter 100 gr) dengan masing-masing 4 replikasi. Kompos yang dihasilkan diuji kadar C-organik, rasio C/N, N, P, K, Fe,Mn dan Zn. Data dianalisis menggunakan ANOVA, jika F hitung > F tabel dilanjutkan dengan uji beda nyata terkecil. Rataan hasil pengamatan dibandingkan juga dengan Standar Mutu Pupuk Organik berdasarkan Peraturan Menteri Pertanian No 70 Tahun 2011. Dari penelitian ini dihasilkan kompos curah dan pelet yang memenuhi standar C-organik, kadar hara N+P2O5+K2O, namun hanya kompos curah A dan kompos pelet E yang memenuhi standar rasio C/N berdasarkan Permentan no 70 tahun 2011. Mutu kompos terbaik yaitu kompos curah A dengan karakteristik C-organik 45,52%, rasio C/N 23,26, kadar hara N+P2O5+K2O 11,24%. Untuk memperoleh mutu kompos gulma berdaun lebar yang memenuhi standar mutu, durasi pengomposan disarankan berkisar 10 minggu.
LAJU INFEKSI PENYAKIT BUSUK PANGKAL BATANG (BPB) PADA TANAMAN KELAPA SAWIT DI DIVISI I KEBUN BANGUN BANDAR PT SOCFINDO Nurliana; Makhrani Sari Ginting; Guntoro; Rio Ardiansyah Fenni
Agro Estate Vol 6 No 2 (2022): Desember 2022
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v6i2.106

Abstract

Penyakit busuk pangkal batang masih menjadi penyakit yang sangat penting pada Perkebunan Kelapa Sawit yang menyebabkan turunnya produksi mencapai 80%. Sebaran penyakit yang busuk pangkal kelapa sawit yang disebabkan Ganoderma dengan melakukan pengamatan setiap tahunnya yang dimulai sejak tahun 1984 di PT Socfindo. Tujuan penelitian adalah untuk memberi deskripsi kuantitatif busuk pangkal batang yang terjadi di Divisi I Kebun Bangun Bandar PT Socfindo pada Blok 66 tahun tanam 1972 generasi kedua. Penelitian ini menggunakan metode deskriptif kuantitatif menggunakan data sekunder dari data pengamatan serangan Ganoderma dari Socfindo Seed Production and Laboratories (SSPL) tahun 2022 PT Socfindo. Hasil dari analisis data menunjukkan Persentase Luas Lahan Terserang sebesar 82,35%, Insidensi Penyakit terjadi 13 tahun setelah tanam dan kejadian penyakit busuk pangkal batang pada tanaman kelapa sawit yang ditanam pada tanah yang terinfeksi Ganoderma pada umur 5-6 tahun setelah tanam sedangkan serangan tertinggi pada umur 6-7 tahun setelah terserang.
Diversity Weeds on Plantation Coconut Palm (Elaeis Guineensis Jacq) in Institute Technology Palm Indonesia Muhammad iqbal; Resty Fadhillah; Iqbal Bukhori; Ferdy Ikhwan; Poppy Fitria; Kurnainy Tohir; Habib Handoko; Guntoro Guntoro; Makhrani Sari; Maisarah Maisarah; Ingrid Ovie
International Journal of Educational Research Excellence (IJERE) Vol. 3 No. 2 (2024): July-December
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijere.v3i2.1067

Abstract

Weeds are annoying plants that can harm the main crop, weeds can grow quickly without being desired and also become obstacles to other activity mechanisms on the same land. The research was carried out in the practical garden of the Indonesian Palm Oil Technology Institute (ITSI), namely the Plantation campus, which has supporting facilities in the form of Oil palm plantation with an area of 6 hectares, this oil palm plantation (Elaeis guineensis Jacq.) has diverse plant vegetation with a height of 25 meters above sea level. This research focuses on exploring weed diversity in oil palm plantations at the Indonesian Palm Oil Technology Institute (Medan). By using field survey methods and vegetation analysis, the data is presented in qualitative descriptive form. This research reveals the types and distribution of weeds present, providing in-depth insight into the diversity of oil palm plantation ecosystems. The findings of this study show variations in weed vegetation and types that influence ecosystem balance. This research provides an important basis for further understanding of weed dynamics in oil palm plantations, creating a foundation for the development of more appropriate and sustainable management strategies.
Analisis Kelayakan Usaha Pemanfaatan Bungkil Jagung dalam Pengomposan Pelepah Kelapa Sawit Saragih, Dina Arfianti; Yosephine, Ingrid Ovie; Guntoro, Guntoro; Pradana, Fery
JURNAL AGROPLASMA Vol 9, No 1 (2022): AGROPLASMA VOL 9 NO 1
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v9i1.2771

Abstract

Palm oil midrib can also be used as a base for composting. Palm fronds which have been underutilized by the community and are more wasteful are usually only stacked around the tree. One way to use oil palm leaf fronds as a source of plant nutrients is in the form of compost. Palm oil fronds contain high lignin, so the process of composting oil palm fronds takes a long time. The process of decomposition of oil palm fronds naturally takes a long time which is around 3-4 months. This study will analyze the feasibility of utilizing corn meal as a compost material for oil palm fronds, corn meal is used as an energy source for microorganisms to accelerate the decomposition of oil palm fronds.This research was conducted in the greenhouse of the Agricultural Agribusiness College of Agriculture (STIPAP) Medan. When the research was conducted for 3 months, from March to May 2019. Palm oil fronds composting is 50 kilograms with a production cost of Rp 1,121,308 and a total income of Rp 1,200,000. The net profit of making oil palm frond compost is Rp. 78,692. BEB the price of making palm oil compost is Rp. 22,426 while the selling price of compost is Rp. 24,000. The BEP of producing oil palm fronds compost obtained is 47 kilograms while the amount of production of oil palm frond compost making is 50 kilograms so it can be interpreted that BEP production of oil palm frond composting is profitable because the amount of production of BEP production is greater. R / C ratio, which is the ratio of total receipts with total production costs has an R / C value of 1.07, then the R / C value can be greater than 1, it can be interpreted that the R / C value of making compost makes a profit. B / C ratio, which is the ratio of profits to total production costs has a B / C value of 0.07, thus the B / C value is smaller than 1. Then it can be interpreted that the B / C value of making compost does not benefit or is not feasible to run in the production of 50 kilograms. Keywords: palm fronds, compost, corn meal, break event point
PEMBUATAN PAPAN PARTIKEL DENGAN MENGGUNAKAN BAHAN BAKU TANDAN KOSONG KELAPA SAWIT DAN PEREKAT RESIN Lubis, Ahmad Fahmi Alhafiz; Effendi, Zulham; Guntoro, Guntoro
Jurnal Agro Fabrica Vol. 4 No. 1 (2022): Juni 2022
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v4i1.176

Abstract

Oil palm is a plantation crop that has an important role in Indonesia today. This plant is a plant that produces vegetable oil and its derivative products. The processing of oil palm empty bunches into particle board as a strategy for utilizing solid waste from oil palm processing has been carried out. The test was carried out to determine the hardness, weight and moisture content to produce particle board. The board making was carried out in April - August 2020. The location was at the Laboratory of Soil and Fertilizer at the College of Agricultural Agribusiness and Plantation (STIPAP) and the Laboratory of Industrial Chemistry Polytechnic Medan (PTKI). The results showed that the largest water content of oil palm empty fruit bunches was obtained by 44%, then for the weight of the content obtained 1.131 gr / cm3 with a ratio of 50% oil palm empty bunches fiber and 50% resin adhesive and a hardness test value of 76 kg. . The moisture content can affect the resistance and weight of the particle board so that drying is necessary. Meanwhile, the weight of the contents has an effect on particle density, thereby increasing the hardness of the material.
Respon Pupuk Organik Cair Lamtoro (Leucaena leucocephala) Daun Kulit Jeruk (Citrus x sinensis) Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) Di Main Nursery Maharany, Rina; Wagino, Wagino; Guntoro, Guntoro; Roosmawati, Febriana; Maulina, Viny
BEST Journal (Biology Education, Sains and Technology) Vol 7, No 1 (2024): Juni 2024
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v7i1.8968

Abstract

Penelitian dilaksanakan di kebun ITSI Medan. Waktu penelitian dilaksanakan bulan Februari - Agustus 2020. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) Faktorial dengan  perlakuan POC daun lamtoro dan POC kulit jeruk. Jumlah polibag per perlakuan adalah 4. Pengujian parameter disusun pada daftar sidik ragam dan dilakukan uji Duncan Multiple Range Test (DMRT) dengan taraf 5%. Hasil penelitian menunjukkan bahwa pemberian  POC daun lamtoro menunjukkan pengaruh yang nyata pada parameter tinggi tanaman 10 MST - 14 MST  dengan hasil terbaik terdapat pada perlakuan L3 (750 ml) dengan peningkatan tinggi tanaman masing-masing 10 MST (52,08 cm), 12 MST (56,35 cm), 14 MST (63,84 cm). Pemberian POC kulit jeruk menunjukkan pengaruh yang tidak nyata terhadap pertumbuhan vegetatif bibit kelapa sawit pada semua parameter pengamatan. Interaksi antara perlakuan POC daun lamtoro dan POC kulit jeruk menunjukkan pengaruh yang tidak nyata terhadap pertumbuhan vegetatif bibit kelapa sawit pada semua parameter pengamatan
Analysis of The Relationship of Wind Speed and Rainfall on the Development of Coffee Leaf Rust (Hemileia Vastatrix B. & Br.) on Sipirok Arabica Coffee Plants in South Tapanuli District, Indonesia Guntoro, Guntoro; Lisnawita, Lisnawita; Tantawi, A. Rafiqi; Safni, Irda
GMPI Conference Series Vol 3 (2024): The 10th Asian Academic Society International Conference (AASIC)
Publisher : Gemilang Maju Publikasi Ilmiah (GMPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53889/gmpics.v3.424

Abstract

Coffee is one of the agricultural commodities that is a priority for development by the Indonesian government because it has high economic value. Sipirok coffee is a mainstay Arabica coffee from the Highlands, South Tapanuli dictrict, Sumatera Utara - Indonesia. During its cultivation in the field, many problems were discovered, including coffee leaf rust disease caused by the fungus Hemileia vastatrix. This research aims to analysis the relationship between wind speed and rainfall on the development of coffee leaf rust disease (H.vastatrix) on Arabica coffee plants in South Tapanuli Regency, North Sumatere Province. The research was carried out at the community coffee planting center in the Sipirok Highlands, in Sampean Village, Sipirok District, South Tapanuli Regency with coordinates 1.64'N99.26'E with an altitude of 900 meters above sea level. The research was carried out by observing weather elements with a portable weather measuring device, capturing H. vastatrix fungal spores with a modified Kyosawa type spore capture device, and observing the severity of H. vastatrix coffee leaf rust disease. The collected data was analysed using correlation and regression analysis with SPSS Version 25. The results showed that wind speed and rainfall had a very positive effect on conidium capture and disease severity. Accordingly, there is a relationship between the elements of wind speed and rainfall on the development of coffee leaf rust disease (Hemileia broadatrix B. Br.).
Co-Authors Adinda Thalia Adri Moses Manullang Ahmad Dhairobi Ahmad Fahmi Alhafiz Lubis Cici Dalimunthe Dina Arfianti Saragih Eka Bobby Febrianto, Eka Bobby Ferdy Ikhwan Habib Handoko Hasrudy Tanjung, Hasrudy Hastina Febriaty Ika Ucha Pradifta Rangkuti Ingrid Ovie Ingrid Ovie Yosephine Iqbal Bukhori Irda Safni Irma Christiana Isna Ardila Kurnainy Tohir Lisnawita Lisnawita Lubis, Ahmad Fahmi Alhafiz Maisarah Makhrani Sari Ginting Maulina, Viny Muhammad Firza Alpi, Muhammad Firza Muhammad iqbal Nurliana Poppy Fitria Pradana, Fery Priyo Adinugroho Radite Tistama Raju Setiawan Damanik Resty Fadhillah Rina Maharany Rini Astuti Rio Ardiansyah Fenni Rio Ardiansyah Fenni Ritna Wahyuni Roosmawati, Febriana Sakiah Sakiah Simon Simanjuntak Sinaga, Anisyah Sri Murti Tarigan Tantawi, A. Rafiqi Tiffany Zia Aznur Wagino Yazid, Abu Yusuf Dibisono, Mhd Zulham Efendi Zulham Effendi