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Oil Palm Pressed Fiber Valorization: Improving Fiber Processing in Composting with Azotobacter for Use in Potting Media of Brassica rapa Sylvia Madusari; Zakat Firmanto; Rufinusta Sinuraya
Journal of Applied Sciences and Advanced Technology Vol 2, No 3 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Fiber (mesocarp fiber) is a solid waste generated in the oil palm factory which potentially used as fertilizer through composting. Addition of Azotobacter sp. in composting can increase nitrogen content, which improve the quality of compost. The purpose of this research was to determine the effect of the enrichment of Azotobacter sp. in composting of oil palm pressed fiber and analyzing the nutrient content and its potential as a planting medium of pakcoy (Brassica rapa). Descriptive method was used in the process of composting by assessing the physical and chemical properties of the compost produced. Fiber compost testing as a planting medium was carried out using a nonfactorial Randomized Complete Block Design in 3 variations of 30%, 50% and 70% treatment, and each mixed with subsoil. The results of compost physical parameters analysis showed the dark brown color, and the texture showed more crumb in the compost enriched with Azotobacter sp. The best pH was found in the compost treated with the addition of Azotobacter sp., which was 8.36. Analysis of compost application on pakcoy growth showed that the highest leaf area (69.73 cm2) and number of stomata (36.4 mm2)-1) were found in the F2P2 treatment (Azotobacter Fiber Compost 50% + Subsoil 50%); The highest root length (28.38 cm), shoot dry weight (2.58 g), and root dry weight (2.26 g) were found in the F2P3 treatment (Azotobaacter Fiber Compost. 70% + Subsoil 30%). From the results of these experiments, the compost enriched with azotobacter has beneficial effects on crop growth could be attributed to soil amendments.

Bioherbisida Pra Tumbuh Alang-Alang (Imperata cylindrica) untuk Pengendalian Gulma di Perkebunan Kelapa Sawit Vira Irma Sari; Sylvia Nanda; Rufinusta Sinuraya
JURNAL CITRA WIDYA EDUKASI Vol 9 No 3 (2017): JCWE Edisi Desember 2017
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Controlling weed using herbicide by continuously would be had negative affect for environment and make weed resistance. This problem must be resolved with more eco-friendly solution, such as using pre-emergence bioherbicide. Bioherbicides are herbicides derived from natural ingredients and contain chemical compounds that capable of controlling weeds, such as Imperata cylindrica, because it is contains allelochemical that inhibit the growth of others plant. The research was arranged in a non factorial randomized design with two replication, which consists of 5 treatments, namely, A0 (control), A1 (herbicide Glyphosate 1%), A2 (bioherbicide extract 1%), A3 (bioherbicide extract 3%), A4 (bioherbicide extract 5%). Data were analyzed using analysis of variance and a further test DMRT (Duncan Multiple Range Test). The results from this study showed that alang-alang (Imperata cylindrica L.) could be alternative bioherbicides for controlling weed in oil palm plantation. Pre-emergence bioherbicides significantly affect the growth of weeds in 7 and 21 days after application. The best bioherbicides concentration is 1%, and its bioherbicides contains of alelochemical is flavonoid.

Uji Model Alat Garuk Piringan dalam Mengendalikan Kentosan dan Berondolan Busuk di Perkebunan Kelapa Sawit Sylvia Madusari; Rufinusta Sinuraya; Mubarok Ahmad
JURNAL CITRA WIDYA EDUKASI Vol 9 No 2 (2017): JCWE Edisi Agustus 2017
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Research on the trial of modified scratching tools in the control of chitosan and rotten fruit in oil palm crop yielded in palm oil plantation PT. Fairco Agro Mandiri (PT FAM), Bukit Makmur Village, Kaliorang Subdistrict, East Kutai Regency, East Kalimantan Province, in May 2015. This research was conducted to find out the technique of controlling the chitosan and rotten fruit in the dish, there is an effectiveness and cost efficiency resulting from the treatment of the disk manually on the palm oil plant produces. The methods used in conducting this research are observation and modification of the scratching tool at the workshop, experimenting on field tools and evaluating the calibration of the modified rotary tool. Modified scratching tools in the control of chitosan and rotten fruit in palm oil produce better and more efficiently than scratching by using the scratching tools commonly used by workers. The use of this modified scratching tool can improve the performance of scratching from 5.36 hk / ha to 3.25 hk / ha (capir tool); 3.27 hk / ha (cepir tool 1); and 3.03 hk / ha (cepir tool 2). It can save the cost of scratching from Rp 907,984 to Rp 357,434 (capir tool); Rp 354.046 (cepir tool 1); and Rp 394,702 (cepir tool 2).

Efektivitas dan Efisiensi Penggunaan Knapsack Sprayer dan Knapsack Motor Pada Penyemprotan Gulma di Perkebunan Kelapa Sawit Yuliyanto .; Nafrin Wijaya Kesuma; Rufinusta Sinuraya
JURNAL CITRA WIDYA EDUKASI Vol 9 No 1 (2017): JCWE Edisi April 2017
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Spraying activities is a important aspect of the maintenance activities of palm oil. Use proper spray equipment capable of reducing the cost of weed control in palm oil plantations. Spraying is usually done with a knapsack sprayer (solo) with weeds mortality conditions are uneven so that the necessary tools other spraying with spraying conditions are equitable and more cost-effective, such as the motor knapsack sprayer. This study aims to determine the effectiveness and efficiency of spraying equipment knapsack sprayer (solo) and a motor knapsack sprayer in oil palm plantations. The research was conducted at PT Agro Muko Air Bikuk Estate, Mukomuko, Bengkulu Province. The method used is observation, data collection and information through interviews. Based on the results of the study, the mortality rate of weeds in a knapsack sprayer (solo) less evenly distributed, only 90%, whereas for the motor knapsack sprayer up to 99%. The total cost of spraying using a knapsack sprayer (solo) is Rp 34,610/ha, while the total cost of spraying using a knapsack sprayer motorcycle is Rp 27,241/ha, so that there is a difference in cost of spraying Rp 7,369/ha. The use of a motor knapsack sprayer spraying tool, enables the spraying activity and reduce the cost of application.

Pengaruh Pemberian Pupuk Controlled-Release Fertilizer (Meister MX) terhadap Pertumbuhan Bibit Kelapa Sawit Rufinusta Sinuraya
JURNAL CITRA WIDYA EDUKASI Vol 4 No 1 (2012): JCWE Edisi Mei 2012
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Pupuk adalah material yang ditambahkan pada media tanam atau tanaman untuk mencukupi kebutuhan hara yang diperlukan tanaman sehingga mampu berproduksi dengan baik. Material pupuk dapat berupa bahan organik ataupun non-organik. Pemupukan yang baik apabila kandungan unsur hara di dalam pupuk bisa terserap dengan baik oleh tanaman. Efisiensi dan efektivitas pemberian pupuk sangat dipengaruhi oleh metode aplikasi pemupukan yang diterapkan. Pupuk Controlled-Release Fertilizer Meister Mx merupakan pupuk majemuk yang berbentuk bulat yang dilapisi dengan lilin pada bagian luarnya yang bersifat slow release. Dalam pemupukan, hal yang diperhatikan tidak hanya kepada peningkatan pertumbuhan bibit, melainkan juga besarnya biaya yang dibutuhkan selama pemupukan tersebut. Pemupukan yang baik dengan biaya yang minimal tetapi menghasilkan bibit yang berkualitas menjadi kunci utama kesuksesan pembibitan.

Aplikasi Janjang Kosong Hasil Proses Pabrik Kelapa Sawit sebagai Pengganti Pupuk Anorganik MOP di Areal Tanaman Kelapa Sawit Belum Menghasilkan Rufinusta Sinuraya; Hoiruddin Lubis
JURNAL CITRA WIDYA EDUKASI Vol 3 No 2 (2011): JCWE Edisi Nopember 2011
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Janjangan kosong merupakan limbah dengan volume yang paling banyak dari proses pengolahan Tandan Buah Segar (TBS) pada pabrik Kelapa Sawit, mencapai 23% dari TBS yang diolah. Dalam satu ton janjang kosong mempunyai kandungan unsur nitrogen 3,6 kg, phosphat 0.9 kg, kalium 11 kg dan magnesium 1,4 kg. Dekomposisi Kandungan Unsur Hara Dalam Janjangan Kosong yaitu Nitrogen (N) 205 hari, Fosfat (P) 85 hari, Kalium (K) 25 hari, dan Magnesium (Mg) 115 hari. Dosis Aplikasi Janjang Kosong Di lapangan 25 ton/ha/tahun atau 175 kg/pokok. Pengaplikasian janjang kosong dapat menggantikan pupuk muriate of potash (MOP) pada pupuk anorganik. Kajian ini bertujuan untuk mengetahui fungsi dan kegunaan janjang kosong, mengetahui peran penting dan tujuan aplikasi janjang kosong serta teknik pengaplikasiannya. Aplikasi janjang kosong dapat meningkatkan proses dekomposisi sehingga kandungan fisik, biologi, dan kimia pada tanah meningkat. Dosis pada pupuk yang terkandung dalam 175 kg janjang kosong/pokok adalah 3,2 kg muriate of potash (MOP) sehingga kandungan dosis muriate of potash (MOP) pada janjang kosong sudah mencukupi sehingga muriate of potash (MOP) anorganik tidak perlu lagi diaplikasikan.

Teknik Aplikasi Decanter Solid (DS) di Pembibitan Utama Kelapa Sawit (Main Nursery) Rufinusta Sinuraya
JURNAL CITRA WIDYA EDUKASI Vol 3 No 1 (2011): JCWE Edisi Mei 2011
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Pembibitan merupakan langkah awal dalam penanaman kelapa sawit yang tujuannya adalah untuk menyediakan bahan tanaman yang baik, sehat, dan dalam jumlah yang cukup. Pemupukan adalah penyediaan unsur hara bagi tanaman, sehingga tanaman akan mampu tumbuh dengan baik dan mampu berproduksi secara maksimal. Decanter solid (DS) merupakan limbah PKS dalam bentuk padatan yang berasal dari minyak kasar (crude oil) kemudian dipompakan kedalam alat decanter guna memisahkan solid dan liquid, dari alat sistem decanter inilah kemudian dihasilkan DS yang keluar melalui decanter outlet dan DS yang dihasilkan berwarna hitam. Satu ton TBS berpotensi menghasilkan 40 kg DS. DS berasal dari daging buah yang larut dalam minyak kasar (crude oil). Rata-rata 1 ton DS mengandung unsur hara sebanding dengan 10,3 kg N, 3,3 kg P, 6,1 kg K dan 4,5 kg Mg. Aplikasi decanter solid di pembibitan main nursery cukup efektif, karena selain bermanfaat bagi tanaman dan tanah, limbah PKS dapat tertangani dengan baik, sehingga dapat dijadikan alternatif disaat terjadi kelangkaan pupuk.

Pengaruh Daun Kelapa Sawit sebagai Naungan terhadap Pertumbuhan Bibit Kelapa Sawit pada Tahap Pre Nursery Rufinusta Sinuraya
JURNAL CITRA WIDYA EDUKASI Vol 11 No 2 (2019): JCWE Edisi Agustus 2019
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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The purpose of this research is to know the growth response of oil palm seedlings at pre nursery to the shade treatment of oil palm leaves. Research on the effect of palm oil leaves as a shade on the growth of oil palm seeddlings at the pre nursery stage. Conducted on March 5 until May 28, 2014 at PT Mahakam Sawit Plantation, Tanjung Harapan Village, Sebulu Timur Subdistrict, Kutai Kartanegara, Kalimantan Province, using Randomized Compete Design with a non-factorial design with 2 treatments, each treatment consisted of 6 replications. Thus the number of seeds used as many as 12 seeds of treatment A is without shade (control) and C is the shade of the leaves of oil palm. The parameters observed were seedling height, stem diameter, number of leaves and total leaf area. The results showed that the treatment of shade of oil palm leaves significantly affected the growth of oil palm seedlins with values of seedlings height, stem diameter, number of leaves and total leaf area at 12 week after planting each is 21.50 cm, 0.93 cm, 3.5 strands and 64,75 cm². The shade treatment resulted in significantly different oil palm seedlings growth wit no shade treatment. The shade treatment resulted in seedlings height, stem diameter, number of leaves and total leaf area greater than the treatment without shade with milai difference of 29.86 %, 25.01 %, 14.29 % and 46.64 %.

Pemanfaatan Rimpang Alang-alang (Imperata cylindrica) sebagai Bioherbisida Pra Tumbuh untuk Pengendalian Gulma di Pembibitan Awal Kelapa Sawit Rufinusta Sinuraya
JURNAL CITRA WIDYA EDUKASI Vol. 14 No. 1 (2022): JCWE Edisi April 2022
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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The use of herbicides is a weed control methods in oil palm plantations, will have a negative impact on plants and the environment if used continuously. Imperata cylindrica can be used as a natural bioherbicide because it contains compounds that can inhibit the growth of other plants. This study aims to obtain alternative organic materials as bioherbicides for controlling pre-growing weeds in oil palm early nurseries. The method used was a non-factorial randomized block design (RBD) with P0 (Without Bioherbicide Extract), P1 (1% Extract), P2 (2% Extract) and P3 (3% Extract). The results showed that the rhizome of the alang-alang (Imperata cylindrica) can be used as an alternative material for making bioherbicides for controlling pre-growing weeds in early oil palm nurseries. Provision of alang-alang rhizome extract as a bioherbicide did not show a significant effect on the morphology and physiology of oil palm seedlings. The content of compounds contained in the bioherbicide extract of the pre-growing rhizome of alang-alang consists of flavonoids 0.097% and tannins 0.105%. Provision of alang-alang rhizome bioherbicide extract with an extract concentration of 2% is recommended as a concentration that can be used to reduce weed growth.

Pemanfaatan Pupuk Organik Kotoran Kambing dan Abu Tandan Kosong Kelapa Sawit pada Pembibitan Awal Kelapa Sawit (Elaeis guineensis Jacq.) Yuliyanto Yuliyanto; Rufinusta Sinuraya; Imam Sardian Pratama
JURNAL CITRA WIDYA EDUKASI Vol. 14 No. 1 (2022): JCWE Edisi April 2022
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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This study aims to determine the effect of organic fertilizer application of goat manure and oil palm empty fruit bunch ash on the growth of oil palm seedlings and to obtain the best mixing of goat manure and oil palm empty fruit bunch ash for early seedling of oil palm. This study used a Randomized Block Design (RBD) method with 4 treatments, 3 replications and 2 samples. The treatment was carried out by adding a mixture of organic goat manure and oil palm empty fruit bunch ash in a ratio of 1:1 with different proportions on subsoil soil planting media. The research treatments were: P0 = No treatment (subsoil soil), P1 = subsoil soil + 100 grams of compost, P2 = subsoil soil + 150 grams of compost, P3 = subsoil soil + 200 grams of fertilizer. The results showed that organic fertilizer mixed with goat manure ash from empty fruit bunches of oil palm with a ratio of 1:1 can be used as an alternative to fertilization in early oil palm nurseries. The treatment had a significant effect on stem diameter in the third month and significantly affected weed growth.

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