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All Journal Jurnal Ilmu Pertanian Indonesia Forum Pasca Sarjana AGROLAND AGRISAINS ILMU KELAUTAN: Indonesian Journal of Marine Sciences TORANI Jurnal Agrista Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Ilmu Pertanian KULTIVAR Peronema Forestry Science Journal Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia Jurnal Tanah Tropika Pertanian Tropik Jurnal Kreatif Tadulako Online AGROTEKBIS Jurnal Penelitian Pendidikan Jurnal Online Mahasiswa (JOM) Bidang Pertanian JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Solum Jurnal Teknologi Pertambangan Jurnal Penelitian Ekosistem Dipterokarpa Register: Jurnal Ilmiah Teknologi Sistem Informasi Jurnal Akuatika Indonesia AGROLAND: The Agricultural Sciences Journal Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Jurnal Mantik Penusa AGRITROPICA : Journal of Agricultural Sciences SENTRALISASI Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Serambi Engineering AKMEN Jurnal Ilmiah Jurnal Hukum Volkgeist Guru Tua : Jurnal Pendidikan dan Pembelajaran Jurnal Pendidikan Teknologi Pertanian Agrotechnology Research Journal JOURNAL OF INDONESIAN TROPICAL FISHERIES (JOINT-FISH) : Jurnal Akuakultur, Teknologi Dan Manajemen Perikanan Tangkap, Ilmu Kelautan JURNAL EKOBIS DEWANTARA JMB : Jurnal Manajemen dan Bisnis Jurnal Geofisika Jurnal Perspektif: Jurnal Kajan Sosiologi Pendidikan AGRINULA: Jurnal Agroteknologi dan Perkebunan Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Agrica Ekstensia Jurnal Ilmu Administrasi dan Studi Kebijakan (JIASK)
Abdul Rauf
aMining Engineering Department, Faculty of Mineral and Technology, UPN “Veteran” Yogyakarta 55283 SWK 104 (North Ring Road) Condong Catur, Yogyakarta, Indonesia.
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Physics Social Sciences Other

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APPLICATION OF BIOCHAR FROM PALM OIL PLANTS RESIDUES ON PHYSICAL PROPERTIES OF ULTISOL Rusdi, Irfan; Rauf, abdul; Supriadi, Supriadi; Hidayat, Benny
AGRITROPICA : Journal of Agricultural Sciences Vol 2, No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.469 KB) | DOI: 10.31186/j.agritropica.2.2.93-97

Abstract

Ultisol is one type of soil that has several problems for plant growth. The main problems are poor physical properties such as high bulk density, low soil permeability, and low water retention ability. This research aim was to determine the effects of various application of biochar made of oil palm plants residue on bulk density and soil porosity of Ultisol soil. The research design used a non-factorial completely randomized design, consisting of 5 treatments, namely without biochar application (control), oil palm stem biochar, oil palm frond biochar, oil palm empty fruit bunches biochar and combination of biochar ingredients. Each treatment was repeated 4 times hence the number of experimental units became 20 units. The parameters observed included bulk density and soil porosity. The research results showed that biochar application significantly reduced the bulk density and significantly increased the soil porosity of Ultisol soil.
PERBAIKAN SIFAT TANAH KEBUN KAKAO PADA BERBAGAI KEMIRINGAN LAHAN DENGAN MENGGUNAKAN TEKNIK BIOPORI DAN MULSA VERTIKAL Maharany, Rina; Rauf, Abdul; Sabrina, T.
Jurnal Ilmu Pertanian KULTIVAR Vol 5, No 2 (2011)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

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Abstract

Pengelolaan limbah tanaman kakao masih belum ditangani dengan tepat, salah satu upaya pengelolaan yang tepat dalam pengelolaan serasah kakao adalah dengan membenamkannya ke dalam tanah agar terjadi percepatan pelapukan (secara biopori dan mulsa vertikal) dan memberikan kontribusi terhadap perbaikan dan kesuburan sifat tanah. Tujuan penelitian ini adalah untuk mengevaluasi teknik yang paling tepat dilakukan dalam penempatan serasah kakao terhadap perbaikan sifat tanah di kebun kakao, dan untuk mengevaluasi pengaruh kemiringan lahan terhadap sifat tanah di perkebunan kakao, untuk mengevaluasi interaksi antara penempatan serasah kakao dan kemiringan lahan terhadap sifat tanah di perkebunan kakao. Metoda penelitian yang digunakan adalah Rancangan Petak Berjalur (Strip Plot Design) dengan 3 (kali) ulangan. Faktor pertama adalah kemiringan lahan yaitu lahan datar, lahan landai dan lahan miring. Faktor kedua adalah penempatan serasah kakao yaitu tanpa pemberian mulsa (kontrol), penempatan serasah secara biopori, dan penempatan serasah secara mulsa vertikal. Hasil penelitian menunjukkan bahwa perlakuan penempatan serasah kakao berpengaruh nyata terhadap perbaikan sifat tanah dikebun kakao terutama penempatan serasah kakao secara mulsa vertikal. Perlakuan kemiringan lahan berpengaruh nyata terhadap sifat tanah kebun kakao, yang lebih baik adalah pada kemiringan lahan datar. Interaksi antara perlakuan penempatan serasah kakao dan kemiringan lahan berpengaruh nyata terhadap perbaikan sifat fisik, sifat kimia, dan sifat biologi tanah di kebun kakao. Kata kunci: biopori, mulsa vertikal, sifat fisik, kimia, biologi tanah
EFEK PEMBERIAN KOMPOS LIMBAH PADAT PENGOLAHAN MINYAK NILAM DAN PUPUK FOSFAT TERHADAP TANAMAN NILAM (POGOSTEMON CABLIN BENTH.) Banurea, Adei Johan M; Damanik, B. Sengli; Rauf, Abdul
Jurnal Ilmu Pertanian KULTIVAR Vol 4, No 2 (2010)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

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Abstract

Pengujian penggunaan kompos limbah padat pengolahan minyak nilam dan pupuk fosfat terhadap pertumbuhan dan produksi nilam (Pogostemon cablin Benth) di Kabupaten Pakpak Barat. Nilam ialah salah satu tanaman industri yang memiliki pelung dan potensi untuk dikembangkan sebagai komoditas unggulan daerah. Informasi pemupukan dan pemanfaatan limbah menghasilkan minyak nilam sampai saat ini masih sangat terbatas. Tujuan penelitian adalah untuk mengetahui dosis kompos limbah padat penyulingan minyak nilam dan pupuk fosfat yang tepat bagi pertumbuhan dan produksi nilam di Kabupaten Pakpak Barat. Penelitian ini dilaksanakan pada bulan Maret 2010 sampai Agustus 2010 di Desa Kaban Tengah, Kecamatan Sitellu Tali Urang Jehe, Kabupaten Pakpak Barat, Propinsi Sumatera Utara.  Metode penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) Faktorial dengan 2 faktor yaitu : Perlakuan taraf kompos limbah padat pengolahan minyak nilam 0 ton/ha, 10 ton/ha, 20 ton/ha, 30 ton/ha dan perlakuan taraf pupuk fosfat 0 kg/ha, 50 kg/ha, 100 kg/ha, 150 kg/ha, 200 kg/ha. Dari hasil penelitian menunjukkan bahwa bobot kering daun yang merupakan parameter produksi tanaman nilam terbaik dihasilkan oleh perlakuan 30 ton/ha kompos limbah padat pengolahan minyak nilam dan 50 kg/ha pupuk fosfat, tetapi tidak berbeda nyata dengan perlakuan 20 ton/ha kompos limbah padat pengolahan minyak nilam dan 10 kg/ha pupuk fosfat. Penggunaan kombinasi perlakuan meningkatkan produktivitas tanaman dan kadar patkouli alkohol. Kata kunci: Pogostemon sp, limbah, pemupukan, dan Kabupaten Pakpak Barat.
ANALISIS EFEKTIFITAS KINERJA KEUANGAN DINAS PENDAPATAN DAERAH (DISPENDA) KOTA MAKASSAR Rauf, Abdul
AKMEN Jurnal Ilmiah Vol 8 No 4 (2011): AKMEN Jurnal Ilmiah
Publisher : AKMEN Jurnal Ilmiah

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Abstract

Financial performance is a picture of financial condition in a given period either in relation to aspects of fund raising and distributing funds that are usually measured by indicators of capital adequacy, liquidity, and profitability. Profitability assessment aspect to determine the ability to create profits, which are certainly important for the owners. With good financial performance will ultimately affect both the internal and for external parties.
Morphology and physiology characteristic of some varities of rice under salinity stress Barus, Wan Arfiani; Rauf, Abdul; Damanik, B. Sengli; Rosmayati, .
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

This experiment was aimed to evaluate yield potential and adaptability of some varieties of rice based on some morphological and physiological characters. This study was conducted at Paluh Merbau village, Percut Sei Tuan Sub-District, Deli Serdang District, North Sumatera, Indonesia on March 2012 till July 2012. This research was arranged in a randomized block design non factorial with three replications. Eight varieties used are Ciherang, IR 64, Lambur, Batanghari, Banyuasin, IR 42, Inpara 10 and Margasari. Salinity stress in rice leads to changes in both morphological and physiological characters of plants, where the response of each genotype varies depending on the nature of tolerance or sensitivity to salt stress. Observation of growth and production showed that genotif IR 42 had the best growth and the highest production as compared with other varieties
Analysis of land suitability and carrying capacity of rabbitfish (Siganus canaliculatus) culture in seagrass ecosystem in coastal areas of Barru District, South Sulawesi Rauf, Abdul
TORANI: Journal of Fisheries and Marine Science VOLUME 2 NOMOR 1, DESEMBER 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.153 KB) | DOI: 10.35911/torani.v2i1.5855

Abstract

Rabbitfish (Siganus canaliculatus) are found in seagrass beds so that they have the potential to be cultivated in the ecosystem. Cultivation activities require appropriate environmental / land requirements and support to be able to live and develop optimally. This study aims to analyze: (1) Suitability of rabbitfish cultivation land in seagrass ecosystem, (2) The carrying capacity of the land for rabbitfish cultivation in the seagrass ecosystem. This research was carried out in the coastal area of Barru Regency in March-April 2017. This study uses a method with the Remote Sensing Technology and Geographic Information Systems (GIS) approach. The types of data collected are oceanographic oceanic parameters consisting of physical factors (temperature, depth, current velocity, and turbidity), and chemical factors (salinity, pH and DO). The results of the study showed that the waters area was suitable ± 135.76 ha. Results estimation of the carrying capacity/capacity of the waters for rabbitfish cultivation with an area of about 81.46 ha or around 407,300 cultivation units or 5000 units / ha (assuming 1 unit of cultivation =      2 m2 (0,0002 ha).Keywords: land suitability, rabbitfish, carrying capacity
Correlation of streamflow and sediment concentration at upstream and downstream Padang Watershed Lubis, Kemala Sari; Harahap, Erwin Masrul; Rauf, Abdul; Hasibuan, Zainal Arifin
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 2 (2013): Engineering
Publisher : Syiah Kuala University

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Abstract

Sediment concentration affected b streamflow at river body. This research was conducted to study correlation between streamflow and sediment concentration at upstream and downstream Padang watershed on July until December 2013. The research was conducted by using survey method at two outlet of Padang watershed were Padang sub watershed and Padang Hilir sub watershed. Sampling of water at two (2) outlets were conducted at stream surface by using depth intergrating suspended sediment sampler technique at three (3) points of river body. Sampling waters conducted at two times that were after rainand no rain. Sediment concentration (Cs) calculated by Cs = (G2 – G1) / V equation. Streamflow (Q) calculated by multiplying velocity and wide of river by Q = A x V equation. The results showed that no correlation between streamflow and sediment concentration at upstream when no rain (Cs = 0,0007 +0,0412 Q; R2 = 0,43) and at downstream when no rain (Cs = 0,0002 Q + 0,07157; R2 = 0,057). There were correlation between streamflow and sediment concentration at upstream after rain (Cs = 0,00041 Q +0,0611; R2 = 0,88) and at downstream after rain (Cs = 0,00015 Q + 0,03293; R2 = 0,9).
Intersepsi Curah Hujan di Hutan Hujan Tropis: Studi Kasus di Taman Nasional Lore Lindu Sulawesi Tengah Rauf, Abdul; Pawitan, Hidayat; June, Tania; Kusmana, Cecep
Jurnal Ilmu Pertanian Indonesia Vol. 13 No. 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

This filed research was conducted from Apr 2006 to .Juni 2007 at natural tropical rainforest of the Lore Lindu National Park, Central Sulawesi. The objectives were to study the effect of rainfall properties and vegetation characters on interception losses through mathematical model approach, to estimate the rainfall interception losses and to determine the dominant factors influencing them. Observation of vegetation characters in the study area indicated that the vertical and horizontal structure were in good conditions with high leaf area index (LAI 4.8-6.43 m2.m-2 ), ground cover (68.5-92.59%) and wide canopy at average 5.59 (12.05-9.83 m2 Total rainfall (P) on the first measuring phase (Apr 2006-March 2007) was 1502,6mm for 172 events. Dominant rainfall depth was 0.5-5mm for 78 events with cumulative rainfall at 182.2mm or 12.3%, of P. Dominant rainfall intensity was 1--10 mm per hour for 121 events with cumulative rainfall 140.2 mm or 9.3 % of P. The mathematical relationship between rainfall properties and vegetation characters with throughfall, stemflow and interception loss show that rainfall depth and LAI are two factors that strongly influences as expressed: interception loss: Ic= 0. 786+0.343* P+0.051 *LA I (R2=73,77) Application of this equation and Gash model to the second measurement phase (Apr 2007-Juni 2007) gave good agreement on interception estimate and sensitivity, and considering data requirement and calculation procedure this equation is applicable for interception estimation. The critical point of this result is the rainfall properties on Lore Lindu National Park that is very important to forest management, especially in controlling of flooding. Keywords : rainfall interception, tropical rain forest, vegetation characters
PENINGKATAN KEMAMPUAN SISWA KELAS III SDN 18 BALAESANG TANJUNG MEMBACA NYARING MELALUI METODE LATIHAN TERBIMBING Rauf, Abdul; Karim, Ali; Santosa, Pratama Bayu
Jurnal Kreatif Tadulako Online Vol 6, No 6 (2018): Jurnal Kreatif Tadulako Online
Publisher : Jurnal Kreatif Tadulako Online

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Abstract

Permasalahan utama dalam penelitian ini bagaimana meningkatkan kemampuan siswa kelas III SDN 18 Balaesang Tanjung membaca nyaring melalui metode latihan terbimbing?. Tujuan yang ingin dicapai dalam penelitian ini untuk meningkatkan kemampuan siswa kelas III SDN 18 Balaesang Tanjung membaca nyaring melalui metode latihan terbimbing. Penelitian ini dilaksanakan di kelas III SDN 18 Balaesang Tanjung tahun pelajaran 2015/2016.  Subyek penelitian ini adalah siswa kelas III SDN 18 Balaesang Tanjung yang berjumlah 25 orang siswa, 14 orang siswa laki-laki dan 11 orang siswa perempuan. Penelitian ini dilakukan dalam dua siklus dan materi pelajaran yang diajarkan adalah membaca nyaring. Hasil observasi kegiatan siswa dalam pembelajaran pada siklus I memperoleh nilai persentase keberhasilan cukup, pada siklus II sudah memperoleh nilai persentase keberhasilan baik. Persentase ketuntasan belajar klasikal siklus I memperoleh nilai 32%. Persentase ketuntasan belajar klasikal siklus II memperoleh nilai 96%, terdapat peningkatan sebesar 64% dari Persentase ketuntasan belajar klasikal siklus I. Hal ini berarti pembelajaran pada siklus II telah memenuhi indikator keberhasilan penelitian dengan persentase ketuntasan belajar klasikal minimal 80% dan proses pembelajaran diperoleh dari hasil observasi kegiatan siswa dalam pembelajaran berdasarkan lembar observasi minimal rata-rata dalam kategori baik, sehingga penggunaan metode latihan terbimbing dapat meningkatkan kemampuan membaca nyaring siswa SDN 18 Balaesang Tanjung. Kata Kunci: Peningkatan; Kemampuan; Membaca Nyaring; Latihan Terbimbing
Pengendalian Erosi dan Limpasan Permukaan Menggunakan Teknik Mulsa Vertikal pada Budidaya Jeruk Manis di Lahan Miring Rauf, Abdul
Jurnal Agrista Vol 12, No 1 (2008): Volume 12 Nomor 1 April 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Controlling of Soil Erosion and Run-off by Vertical Mulch Technology on the Citrus Cultivation at Hill SlopeABSTRACT. The effects of vertical mulch applications on erosion control and run-off, also soil properties and fertility on citrus cultivations at hill slope had been done in July to November, 2007 in buffer zone of Gunung Leuser National Park, Rumah Galuh Village, Sei Bingei Sub-district, Langkat district, with 560 meters altitude, and 22,5% land slope. Two vertical mulch application are: vertical mulch having the same aim with contour line, and ring vertical mulch. The conservations methods were studied are pile having the same aim with contour line, pile ring, ring of mulch in gunny-sack. Two control experiments are: horizontal mulch application, and without mulch application. These result are: vertical mulch applications could control erosion and run-off and affected physical and chemical soil properties better than horizontal mulch application. The best of conservation methods application where controlling erosion and and run-off are contour pile and mulch in gunny-sack, and affected on soil physical and biological properties are ring vertical mulch, but for affecting soil chemical properties are mulch in gunny-sack.
Co-Authors . Rosmayati Abdul Aziz Jemain Abdullah Abdullah Abdullah, Hasrun Ade Parlaungan Nasution, Ade Parlaungan Adei Johan M Banurea Agoesdy, Riza Agustoni Tarigan, Agustoni Aiyen, Aiyen Aiyen, Aiyen Akbi, Denar Regata Akram Akram, Akram alfarisi, salman Ali Karim Andi Asni, Andi Arman, Iman Asbar Asbar, Asbar Asbar, Muhammad Asmidar Asmidar Ayu, Neneng Gusti Ayyub, Fachrie Rezka B. Sengli Damanik Bejo Slamet Benny Hidayat Bentrovolta Bentrovolta, Bentrovolta Br Pinem, Dea Kartika Budi Hartono Budiarto Budiarto C. Kusmana CECEP KUSMANA Dalimunthe, Badrul Ainy Delvian Delvian Deni Elfiati Dewi Fortuna Ayu Dodi Bagus Widodo, Dodi Bagus Edi Purwanto Erwin Masrul Harahap Faiqurahman, Mahar Fattah, Muhammad H. Fitri Eriyanti Frastika, Sintike G. Gravenhorst Ghafarunnisa, Desyana Gingga, Flaminggo Goni, Agustina H. Pawitan Hamidah Hanum Hamsiah Hamsiah, Hamsiah Harahap, Fitra Syawal Harahap, Fitra Syawal Hasibuan, Rosmidah Hendra Pratama, Hendra Hidayat Pawitan Immawati, Siti Asriah Indun Titisariwati, Indun Inmarlinianto Inmarlinianto, Inmarlinianto Iqbal, M. Fadil Istiqamah, Annisa Kasnir, Muh Kasnir, Muh. Kemala Sari Lubis Kurniawan, Achmad Reza Lalogau, Muhammad Yusran Marthen Arie mico saputra, whin themas Mico, Whin Themas Mr. Irwansyah Muh Yusuf Muhaedah Rasyid Muhammad Lazuardi Prasadewo, Muhammad Lazuardi Mustakim Mustakim Nopralia, Sisca Nur Ali Amri, Nur Ali Nurhidayat, Iwan Oesman, Roswita Pamungkas, Wisnu Pasaribu, Parlin Hotmartua Putra Pasaribu, Parlin Hotmartua Putra Pertiwi, Imanuela I. Pince Salempa Posma Marbun Pramudya, Ikhsan Pratama Bayu Santosa Putri, Lizha Dwi Mulya Rahmaniah, Rahmaniah Rahmawaty Rahmawaty Rahmawaty, R Retno Widia Siahaan, Marisi Intan Ridwanti Batubara Rina Maharany Rismang, Rismang Rukmi, Sindy Sella Rusdi, Irfan Rustam Rustam Sahar, Rahayu Abriani Sakka Samudin Salmiah Salmiah Sarifuddin Sarifuddin Siallagan, Lambok M. Sidabuke, Simon Haholongan Sidabuke, Simon Haholongan Sidabukke, Simon Haholongan Sihotang, Elvira Sihotang, Tambun Simarmata, Juliana Epesus Simbolon, Shanti Desima Siregar, Nicho Chandra Sitorus, Novita Ariani Supriadi Supriadi Sutomo, Didit Darmawan Syahruddin Syahruddin T. June T. Sabrina Tajuddin, Mustamin TANIA JUNE Usman Made USMAN PATO Utami, Khairuna Walida, Hilwa Wan Arfiani Barus Wicaksono, Makruf Yusuf, Kamil Zainal Arifin Hasibuan Zulkifli Nasution