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STRATEGI PENANGANAN BERCAK DAUN CURVULARIA SP. PADA PEMBIBITAN KELAPA SAWIT DI INDONESIA Irham, Wardatul Husna; Saragih, Sri Wahyuna; Febrianto, Eka Bobby; Yazid, Abu; Haholongan, Rahmat; Maulana, Andre; Damanik, Riski
Agro Estate Vol 7 No 2 (2023): Desember 2023
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v7i2.201

Oil palm (Elaeis guineensis Jacq) is one of the plantation crops that produces vegetable oil which has become the main ingredient and leading agricultural commodity in Indonesia. The quality of oil palm seedlings is a disease attack during the seedling stage. The most common disease found in oil palm nurseries is leaf spot disease. The aim of this research is to propose strategies for handling leaf spot in oil palm nurseries in Indonesia. This research is a literature study research. The data used comes from secondary data. Data collection methods use textbooks, journals and periodical. Data analysis is carried out by reading, collecting, citing information, concluding and interpreting the results obtained through relevant study materials. The results obtained that there are several strategies that can be used to treat leaf spot in oil palm nurseries in Indonesia, i.e. by carrying out photon energy irradiation which can increase plant resistance to various types of pathogens, developing organic fertilizer formulations and using biocontrol agent which is expected to help oil palm nurseries in suppressing leaf spot disease, using fungicides to prevent resistance, taking preventive measures to reduce the risk of spot disease on oil palm leaves, carrying out conservation fertilization using S2 (385 mesh), S3 (638 mesh), and S4 (644 mesh) sachets and applying liquid smoke areca nut in suppressing the growth of Curvularia sp.

STRATEGI PENANGANAN BERCAK DAUN CURVULARIA SP. PADA PEMBIBITAN KELAPA SAWIT DI INDONESIA Irham, Wardatul Husna; Saragih, Sri Wahyuna; Febrianto, Eka Bobby; Yazid, Abu; Haholongan, Rahmat; Maulana, Andre; Damanik, Riski
Agro Estate Vol 7 No 2 (2023): Desember 2023
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v7i2.201

Oil palm (Elaeis guineensis Jacq) is one of the plantation crops that produces vegetable oil which has become the main ingredient and leading agricultural commodity in Indonesia. The quality of oil palm seedlings is a disease attack during the seedling stage. The most common disease found in oil palm nurseries is leaf spot disease. The aim of this research is to propose strategies for handling leaf spot in oil palm nurseries in Indonesia. This research is a literature study research. The data used comes from secondary data. Data collection methods use textbooks, journals and periodical. Data analysis is carried out by reading, collecting, citing information, concluding and interpreting the results obtained through relevant study materials. The results obtained that there are several strategies that can be used to treat leaf spot in oil palm nurseries in Indonesia, i.e. by carrying out photon energy irradiation which can increase plant resistance to various types of pathogens, developing organic fertilizer formulations and using biocontrol agent which is expected to help oil palm nurseries in suppressing leaf spot disease, using fungicides to prevent resistance, taking preventive measures to reduce the risk of spot disease on oil palm leaves, carrying out conservation fertilization using S2 (385 mesh), S3 (638 mesh), and S4 (644 mesh) sachets and applying liquid smoke areca nut in suppressing the growth of Curvularia sp.

REVIEW: ANALYSIS OF FERTILIZER USE ON PALM HARVEST RESULTS Irham, Wardatul Husna; Friska Anggraini Barus; Marzuti Isra; Sri Wahyuna Saragih; Andrew Ivanovic Purba
Agro Estate Vol 8 No 2 (2024): Desember 2024
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v8i2.276

Literature research has been carried out on the use of fertilizer on oil palm plants with several types of fertilizer. The aim of this research is to see the effect of several types of fertilizer on palm oil yields. The method used in this research is a literature review. Research results show that the fertilizers often used are chicken manure, goat manure, compost and cow urine. Providing animal manure fertilizer at doses of 0, 50, and 100 g/polybag had the same effect on the development of the upper seedlings, while a dose of 50 g/polybag had the best effect on the development of the lower seedlings. Fertilizer greatly influences the level of soil fertility, thereby increasing the number of leaves, the health of palm stems and palm harvest yields.

Penggunaan Vaksinasi Covid-19 Sinovac Dan Moderna Di Desa Lubuk Damar Kecamatan Seruway Irham, Wardatul Husna
Jurnal Kimia dan Ilmu Lingkungan: Chemviro Vol. 2 No. 1 (2024): Vol. 2 No. 1 (2024)
Publisher : Universitas Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56071/chemviro.v2i1.716

Telah dilakukan penelitian penggunaan vaksinasi. Penelitian ini bertujuan untuk melihat efek samping penggunaan vaksinasi Covid-19 Sinovac dan Moderna di Desa Lubuk Damar Kecamatan Seruway. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Data diperoleh berupa gambaran yang menjelaskan fenomena individual atau karakteristik individual secara akurat. Hasil yang diperoleh menjelaskan bahwa responden yang mengalami efek samping penggunaan vaksinasi Covid-19 Sinovac dan Moderna di Desa Lubuk Damar Kecamatan Seruway banyak yang mengalami efek samping lokal dan sistemik. Responden yang mendapatkan vaksinasi Covid-19 Sinovac lebih banyak mengalami efek samping lokal, yaitu sebesar 73,5 % dan mengalami efek sistemik sebesar 26,5 %. Responden yang mendapatkan vaksinasi Covid-19 Moderna lebih banyak mengalami efek samping sistemik, yaitu sebesar 58,4 % dan mengalami efek lokal sebesar 41,6 %. Penelitian ini memberikan kesimpulan bahwa penggunaan vaksinasi Covid-19 Sinovac dan Moderna secara umum di Desa Lubuk Damar Kecamatan Seruway lebih banyak memberikan efek samping lokal dari pada efek samping sistemik. Efek samping yang terjadi menandakan bahwa vaksinasi Covid-19 Sinovac dan Moderna bekerja secara efektif terhadap tubuh dan mengaktifkan antibodi tubuh dalam melawan virus Covid-19.

INVENTARISASI GULMA DI KEBUN BAH BIRUNG ULU PT. PERKEBUNAN NUSANTARA IV REGIONAL II: WEED INVENTORY IN BAH BIRUNG ULU GARDEN PT. PERKEBUNAN NUSANTARA IV REGION II Nurliana; Irham, Wardatul Husna; Latif, Abdul
Agro Estate Vol 9 No 1 (2025): Juni 2025
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Weeds are nuisance plants that compete with the main crop, namely oil palm plants, in absorbing nutrients. If not controlled, the presence of weeds can cause a decrease in oil palm plant productivity. Inventory of dominant weeds in the highlands facilitates weed control at an altitude of 600-1000 meters above sea level (MDPL). The study was conducted at PT. Perkebunan Nusantara IV Kebun Bah Birung Ulu in Afdeling I, the research time started in February to March 2025. This study used a quantitative descriptive method with a direct weed identification method. The weed identification study in the highlands was at an altitude of 950 masl. The parameters observed were weed grouping, obtaining the Summed Dominance Ratio and the Important Value Index. From the results of the observations, it can be concluded that there are 12 types of weeds with the highest INP of 87%, namely Murdannia Nudiflora. The Summed Dominance Ratio analysis shows that Murdannia nudiflora has the highest dominance, while Spermacoce Ocymifolia has the lowest dominance.

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