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Rahhutami, Ratih
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Efektivitas Pemupukan Urea Padat dan Cair Melalui Biopori pada Pertumbuhan Morfologi Kelapa Sawit Menghasilkan Umur Lima Tahun Ratih Ratih Rahhutami; Danie Indra Yama; Tonny Iskandar
JURNAL CITRA WIDYA EDUKASI Vol 11 No 2 (2019): JCWE Edisi Agustus 2019
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

The plantation of oil palm add urea fertilizer to meet the needs of plant nitrogen, but urea fertilizer is very easy to dissapear and can not be absorbed by plants. This research aims to determine the response of morphology on five years old mature oil palm to two ways of application urea fertilizer and to get the most effective way application urea fertilizer for growth of five years old mature oil palm. This research was conducted at Teaching Farm of Politeknik Kelapa Sawit Citra Widya Edukasi, Mekar Sari Village, Subang, Jawa Barat in July – December 2017.. The experiment was arranged in a completely randomized block design with one factor. There are two treatments: urea fertilizer not thawed (P1) and urea fertilizer thawed (P2). Each treatments were two replications, and each replications consisted of 2 sample plants so the total unit of experiments were 8 plants. Data were analized with analysis of variance with α 5 %, If there is a significant treatment effect, the further analysis using LSD (Least Significant Differences). The result showed that the fertilization of solid and liquid urea through biopories did not significantly affect for all variabels from the beginning to the end of the research and the application of solid and liquid urea fertilizer showed the same effectiveness for growth of five years old mature oil palm.
Biodelignifikasi Bunga Jantan Kelapa Sawit Pasca Anthesis Menggunakan Trametes Versicolor Ratih Rahhutami; Aline Sisi Handini; Indriana Lestari
JURNAL CITRA WIDYA EDUKASI Vol 11 No 3 (2019): JCWE Edisi Desember 2019
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

The purpose of this study were to determine the effect of biodelignification with Trametes versicolor and to get the best dosage of Trametes versicolor on the levels of lignin, holocellulose, hemicellulose and cellulose of oil palm male flowers post anthesis. This research was conducted at Laboratory of Chemistry Politeknik Kelapa Sawit Citra Widya Edukasi and Laboratory of Biochemistry Institut Pertanian Bogor in April – Oktober 2019. This study used a one factor completely randomized design method with 2 treatments: Trametes versicolor 40 ml (A1) and Trametes versicolor 60 ml (A2). Each treatments were three replications. The total unit of experiments were 6 unit. Data were analized with analysis of variance with α 5 %, if there was a significant treatment effect, the further analysis using LSD (Least Significant Differences). The results showed that biodelignification with Trametes versicolor did not significantly affect for all variabels and the dose of Trametes versicolor showed the same effectiveness for the levels of lignin, holocellulose, hemicellulose, and cellulose of oil palm male flowers post anthesis.
Pengaruh Dosis Saccharomyces Cerevisiae dan Waktu Fermentasi terhadap Produksi Etanol Bunga Jantan Kelapa Sawit Pasca Anthesis dengan Teknik Immobilisasi Ratih Rahhutami
JURNAL CITRA WIDYA EDUKASI Vol 12 No 2 (2020): JCWE Edisi Agustus 2020
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

Lignocellulosic materials such as oil palm male flowers can be used as an alternative renewable energy source that is environmentally friendly. The purpose of this study was to determine the potential of oil palm male flowers post anthesis as an alternative raw material for bioethanol using immobilization techniques, determine the best of Saccharomyces cerevisiae dose and fermentation time for ethanol produced and the interactions that occur between the two. This research was conducted at Laboratory of Chemistry Politeknik Kelapa Sawit Citra Widya Edukasi and Laboratory of Biochemistry Institut Pertanian Bogor in April – November 2019. This study used a two factors completely randomized design method. First factor were the dosage of Saccharomyces cerevisiae as much as 25 ml and 50 ml, second factor were the time of fermentation: 2, 3, 4, 5, and 6 days. Each treatments were three replications. The total unit of experiments were 30 unit. Data were analized with analysis of variance with α 5 %, if there was a significant treatment effect, the further analysis using LSD (Least Significant Differences). The results showed that oil palm male flowers post anthesis had the potential to be used as bioethanol with immobilization techniques. The treatment of fermentation time had a significant effect on the ethanol content of oil palm male flowers. However, the dose of Saccharomyces cerevisiae did not significant effect. The best fermentation time was 6 days (17.39%) and there was no interaction between the dose of Saccharomyces cerevisiae and fermentation times to the ethanol content produced.
Evaluasi dan Aplikasi Pupuk Organik Cair Larva Black Soldier Fly pada Pembibitan Awal bibit Kelapa Sawit (Elaeis guineensis Jacq.) Sylvia Madusari; Ratih Rahhutami; Ajeng Rizky Septiani
JURNAL CITRA WIDYA EDUKASI Vol 13 No 1 (2021): JCWE Edisi April 2021
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

Liquid organic fertilizer is a fertilizer made from the decomposition process of organic matter. Black soldier fly (BSF) larvae are used as organic fertilizer because they have a high protein content. This study aims to determine the content of BSF larvae liquid fertilizer (POCbsf) with pineapple and papaya extract as activators and the response to the growth of oil palm seedlings in early nurseries with BSF liquid organic fertilizer. This research was conducted in 2 stages, namely the stage of making POCbsf and the stage of testing POC on oil palm seedlings in early nurseries. This research was arranged in a non-factorial Completely Randomized Design (CRD). The experiments tested in this study were: P0 (without POC), P1: 0.1% POCbsf, P2: 0.5% POCbsf, P3: 1% POCbsf). Each study consisted of 4 treatments, with 3 replications, each replication consisting of 3 samples. The results showed that the amino acid content contained in POCbsf consisted of 17 types. The content of glutamic acid and aspartic acid in POCbsf with papaya extract activator was higher (0.14% and 0.08%) than POCbsf with pineapple extract activator (0.02% and 0.01%). Compared to the control, both POCbsf showed a positive increase in the growth of oil palm seedlings represented at 4 BST on plant height parameters (0.1% POCbsf A = 22.78 cm and 0.5% POCbsf B = 22.06 cm) and root length (0.5% POCbsf A = 15.9 cm; and 0.1% POCbsf B = 15.57 cm).
Bioherbisida Pra Tumbuh Rimpang Alang-Alang (Imperata cylindrica) untuk Pengendalian Gulma di Areal Perkebunan Kelapa Sawit Vira Irma Sari; Dody Boy Lorensha; Ratih Rahhutami
JURNAL CITRA WIDYA EDUKASI Vol 13 No 3 (2021): JCWE Edisi Desember 2021
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

Imperata cylindrica contains allelochemical compounds that could be used as natural active inggredients to control weeds, especially the rhizome. Bioherbicide pre-emergence was expected to be able controlling weeds from germination so that the population of weeds will be reduced later. The objectives of this experiment were to obtain the alternative material for pre-emergence bioherbicide, to know the effectivity of pre-emergence Imperata cylindrica to growth, height and biomass of weeds, and also identify the dominant weeds in treatment area. This research conducted at Teaching Farm Politeknik Kelapa Sawit Citra Widya Edukasi Bekasi, from Januari until Juli 2021. This research was arranged in a factorial random block design with three replications and five treatments. The treatments are P0 (Control), P1 (Herbisida 1%), P2 (Bioherbicide 5%), P3 (Bioherbicide 10%), P4 (Bioherbicide 15%). Each of treatments repeated three times, so that there were 15 experimental unit. The data was analysis of variance. If the analysis variance test result was significant at 5%, then it continued by Least Significance Different Test (LSD Test). The result showed Imperata cylindrica could be as alternative material for pre-emergence bioherbicide and significantly affected to weed’s growth in 1 until 2 weeks after application (WAP), and heigt’s weed in 3 WAP. The lowest weed’s growth showed in control and not significantly different with all treatments. The weed dominance it showed in area is Axonopus compressus. The allelochemical compound contained in pre-emergence bioherbicide Imperata cylindrica are flavonoids 0,097% and tanin 0,105%.
Pemanfaatan Senyawa Alelokimia dari Gulma Kirinyu (Chromolaena odorata) sebagai Pupuk Organik Cair untuk Bibit Kelapa Sawit (Elaeis guineensis Jacq) di Pembibitan Awal Vira Irma Sari; Muhammad Nuril Anwar; Ratih Rahhutami
Jurnal Pengelolaan Perkebunan (JPP) Vol. 3 No. 1 (2022)
Publisher : Politeknik LPP Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.214 KB) | DOI: 10.54387/jpp.v3i1.14

Abstract

Senyawa alelokimia yang terdapat pada gulma umumny dimanfaatkan sebagai biopestisida, namun dengan penggunaan dosis dan konsentrasi yang tepat senyawa tersebut dapat juga dimanfaatkan sebagai Pupuk Organik Cair (POC). Potensi tersebut dapat diaplikasikan pada bibit kelapa sawit masa pembibitan awal (pre nursery) karena bibit memerlukan nutrisi yang cukup untuk mendukung pertumbuhan vegetatifnya. Gulma kirinyu merupakan salah satu gulma dominan di perkebunan kelapa sawit dan mengandung senyawa alelokimia yang tinggi. Keberadaan gulma kirinyu yang melimpah akan sangat baik bila dimanfaatkan sebagai pupuk organik cair untuk bibit kelapa sawit.   Tujuan penelitian ini adalah untuk mendapatkan bahan alternatif pupuk organik cair serta pengaruhnya terhadap morfologi dan fisiologi bibit kelapa sawit, serta mengetahui kandungan senyawa alelokimia pada pupuk organik cair kirinyu. Penelitian dilaksanakan di areal percobaan Kecamatan Cibitung, Bekasi, mulai bulan November 2020  sampai Maret 2021. Penelitian ini disusun dalam Rancangan Acak Kelompok Non Faktorial dengan 5 perlakuan yaitu PO (Kontrol, tanpa pemberian POC), P1 (POC 5 ml/bibit), P2 (POC 10 ml/bibit),  P3 (POC 15 ml/bibit), dan P4 (POC 20 ml/bibit). Setiap perlakuan diulang sebanyak 3 kali. Data dianalisis menggunakan ANOVA dan apabila berpengaruh nyata pada taraf 5% maka dilanjutkan dengan Uji BNT. Hasil penelitian menunjukkan bahwa POC kirinyu belum dapat dijadikan alternatif bahan pembuatan pupuk organik cair, karena belum menunjukkan pengaruh nyata terhadap semua variabel morfologi dan fisiologi bibit kelapa sawit. Senyawa alelokimia yang terkandung dalam POC dan dosis yang diberikan masih tergolong rendah sehingga belum maksimal mendukung pertumbuhan bibit kelapa sawit. Senyawa alelokimia yang terkandung dalam POC adalah flavonoid 0,144% dan tanin 0,244%.
Analysis of Soil Chemical Properties, Production, and Nitrogen Content of Pakcoy in Various Growth Media and Trichoderma Dosages Ratih Rahhutami; Aline Sisi Handini; Dwi Astutik; Yeni Yeni
Gontor Agrotech Science Journal Vol. 9 No. 1 (2023): June 2023
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v9i1.9885

Abstract

The use of compost added by Trichoderma is one of improving the soil's chemical properties and can be used to increase the production of pakcoy plants. The purpose of this study was to determine the effectiveness of compost derived from various types of palm oil waste and the application of Trichoderma on soil chemical properties as well as production and nitrogen content in pakcoy plants. This study used an experimental method with parameters observing plant fresh weight. The research used two factors. The first factor was three types of palm oil waste, midrib leaf, oil palm empty bunches, and solid decanter. The second factor was the dose of Trichoderma, 50 ml, 100 ml, and 150 ml per plant. Planting media derived from solid decanter was able to intensification the production of pakcoy compared to midrib leaf and oil palm empty bunches.
PERTUMBUHAN KAILAN (Brassica oleraceae) DENGAN PERLAKUAN MACAM MEDIA TANAM DAN PERBEDAAN VARIETAS PADA SISTEM HIDROPONIK DFT (Deep Flow Technique) Yeni Yeni; Ratih Rahhutami; Betari Safitri; Priyadi Priyadi
Agros Journal of Agriculture Science Vol 25, No 3 (2023): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

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Abstract

Kailan is a leaf vegetable that has high nutrition and economic value and can be cultivated using DFT hydroponic system to support its productivity. The aims of this study to determine the influence of the types of growing media and differences in varieties and the interaction of the two on the growth in DFT hydroponic system. The study used a factorial complete randomized design consisting of the first factor wass the variety, namely Winsa variety (V1) and Full White variety (V2), the second factor was the type of growing media, namely rockwool (M1), sponge (M2), coco fiber (M3), and coco chip (M4). The results showed there was no interaction between the variety and the growing medium but there was a significant result of variety on the height parameters. The growing medium showed a significant result on the number of leaves, relative growth rate, net assimilation rate, root shoot ratio, and wet weight of kailan plants parameters. Cocochip media and Winsa varieties provide the best growth of kailan plants in all observation parameters. 
APLIKASI PUPUK KALSIUM DAN LIQUID ORGANIC BIOFERTILIZER TERHADAP PERTUMBUHAN DAN HASIL TANAMAN TOMAT Ratih Rahhutami; Raida Kartina; Rianida Taisa; Wika Anrya Darma; Ferziana Ferziana
Agros Journal of Agriculture Science Vol 25, No 3 (2023): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v25i3.3077

Abstract

The quality of soil and the availability of nutrients an important role in increasing the gowth and yield of tomato plants. The purpose of this study were to determine the effect of calcium fertilizer, LOB and the interaction between the two as well as to obtain the best concentration of calcium, LOB and a combination of both on the gowth and yield of tomato plants. This study used factorial complete goup randomized design. The first factor was the concentration of calcium: 0 g / l (Ca0) and 2 g / l (Ca1). The second factor was the concentration of LOB: 0 ml/l (P0), 5 ml/l (P1), 10 ml/l (P2), 15 ml/l (P3), and 20 ml/l (P4). The data obtained were analyzed variously at the level of 5%, if there was a significant effect followed by the DMRT test. The results showed that the application of calcium 2 g / l has not been able to increase the gowth and yield of tomato plants and the higher the concentration of LOB given the gowth and yield of tomato plants will increase. The best combination was shown in the treatment of 0 g/l Ca and 15 ml/l LOB. INTISARI Kualitas tanah dan ketersediaan unsur hara berperan penting dalam peningkatan pertumbuhan dan hasil tanaman tomat. Tujuan dari penelitian ini adalah mengetahui pengaruh pupuk kalsium, LOB dan interaksi antara keduanya serta untuk mendapatkan konsentrasi terbaik dari kalsium, LOB dan kombinasi keduanya terhadap pertumbuhan dan hasil tanaman tomat.Penelitian ini menggunakan Rancangan Acak Kelompok Lengkap (RAKL) faktorial. Faktor pertama adalah konsentrasi kalsium: 0 g/l pupuk kalsium (Ca0) dan  2 g/l pupuk kalsium (Ca1). Faktor kedua adalah konsentrasi LOB: 0 ml/l LOB (P0), 5 ml/l LOB (P1), 10 ml/l LOB (P2), 15 ml/l LOB (P3), dan 20 ml/l LOB (P4). Data yang diperoleh dianalisis ragam pada taraf 5%, jika terdapat pengaruh nyata dilanjutkan dengan uji DMRT. Hasil penelitian menunjukkan bahwa aplikasi kalsium 2 g/l belum mampu meningkatkan pertumbuhan dan hasil tanaman tomat dan semakin tinggi konsentrasi LOB yang diberikan pertumbuhan dan hasil tanaman tomat akan semakin meningkat. Kombinasi terbaik ditunjukkan pada perlakuan 0 g/l Ca dan 15 ml/l LOB.
PERTUMBUHAN KAILAN (Brassica oleraceae) DENGAN PERLAKUAN MACAM MEDIA TANAM DAN PERBEDAAN VARIETAS PADA SISTEM HIDROPONIK DFT (Deep Flow Technique) Yeni Yeni; Ratih Rahhutami; Betari Safitri; Priyadi Priyadi
Agros Journal of Agriculture Science Vol 25, No 3 (2023): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v25i3.3222

Abstract

Kailan is a leaf vegetable that has high nutrition and economic value and can be cultivated using DFT hydroponic system to support its productivity. The aims of this study to determine the growing media and varieties of kailan that provide the best growth on in DFT hydroponic system. The study used a factorial complete randomized design consisting of the first factor wass the variety, namely Nita F1 variety (V1) and Nova variety (V2), the second factor was the type of growing media, namely rockwool (M1), sponge (M2), coco fiber (M3), and coco chip (M4). The results showed there was no interaction between the variety and the growing medium but there was a significant result of variety on the height parameters. The growing medium showed a significant result on the number of leaves, relative growth rate, root shoot ratio, and wet weight of kailan plants parameters. Cocochip media and Nita F1 varieties provide the best growth of kailan plants in all observation parameters.Key-words: Kailan, DFT hydroponic, growing media INTISARI Kailan merupakan sayuran daun yang memiliki nutrisi dan nilai ekonomi yang tinggi serta dapat dibudidayakan secara hidroponik DFT untuk dapat menunjang produktivitasnya. Tujuan dari penelitian ini adalah untuk mengetahui media tanam dan varietas kailan yang memberikan pertumbuhan paling baik pada sistem hidroponik DFT. Penelitian menggunakan rancangan acak lengkap faktorial yang terdiri dari faktor pertama adalah varietas yaitu varietas Nita F1 (V1) dan varietas Nova (V2), faktor kedua adalah macam media tanam yaitu rockwool (M1), spons (M2), coco fiber (M3), dan coco chip (M4). Hasil penelitian menunjukkan bahwa tidak ada interaksi antara varietas dan media tanam tetapi terdapat pengaruh nyata varietas terhadap parameter tinggi tanaman kailan. Perlakuan media tanam memberikan pengaruh nyata pada parameter jumlah daun, laju pertumbuhan relatif, rasio pucuk akar, dan berat basah tanaman kailan. Media tanam cocochip dan varietas Nita F1 memberikan pertumbuhan tanaman kailan terbaik di semua parameter pengamatan.Kata kunci: kailan, hidroponik DFT, media tanam
Co-Authors Agung Wicaksono Ahmad Sutopo Ajeng Rizky Septiani Ali , Fahri Ali, Fahri Andrian Setiawan Betari Safitri Danie Indra Yama Dede Tiara Desi Maulida Dody Boy Lorensha Dwi Astutik Dwi Astutik Dwi Astutik Fahri Ali Fahri Ali, Fahri Ali Febria, Dila Ferziana Ferziana Fitria, Desi Heni Gabriel Lilian Hamiranti, Rahmadyah Handini, Aline Sisi Indria Fatika Indriana Lestari Jadidah, Riskon Lisa Erfa Muhammad Nuril Anwar Prajaka, Nanang Wahyu Pretty Aulia Dewi Fortuna Priyadi Priyadi Putri, Sekar Utami Rahmadyah Hamiranti Raida Kartina Raida Kartina Rianida Taisa Rizka novi sesanti Rizka Novi Sesanti Rizka Novi Sesanti Safitri, Betari Sismanto Sismanto Sismanto Sudirman Yahya Sudradjat Sudradjat Sutopo, Ahmad Syafutri, Amalia Sylvia Madusari Taisa, Rianida Tiara, Dede Tonny Iskandar Toto Suryanto Vira Irma Sari Vira Irma Sari Wahyuni, Reza Wika Anrya Darma, Wika Anrya Winata, Winata Yeni Yeni Yeni Yeni Yeni Yeni Yeni