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All Journal Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Pastura; Journal Of Tropical Forage Science Jurnal Ilmu Lingkungan Jurnal Penelitian Hasil Hutan Jurnal Sumberdaya Alam dan Lingkungan Planta Tropika Journal of Tropical Crop Science JURNAL ILMIAH MAHASISWA AGROINFO GALUH BALANCE: Jurnal Akuntansi, Auditing dan Keuangan International Journal of Applied Business Research Jurnal Ilmiah Akuntansi Kesatuan Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Riset: Jurnal Aplikasi Ekonomi Akuntansi dan Bisnis Jurnal Ilmiah Pariwisata Kesatuan Jurnal Abdimas Dedikasi Kesatuan Jurnal Aplikasi Bisnis Kesatuan International Journal of Electronics and Communications Systems Akuntansi dan Humaniora: Jurnal Pengabdian Masyarakat Indonesian Accounting Literacy Journal Jurnal Keuangan dan Akuntansi Terapan (KUAT) Journal of Accounting Research, Organization and Economics (JAROE) Perbal: Jurnal Pertanian Berkelanjutan Balance: Jurnal Akuntansi, Auditing, dan Keuangan
Sudradjat Sudradjat
Departemen Agronomi Dan Hortikultura, Institut Pertanian Bogor
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Nursing Public Health Social Sciences Other

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PENGARUH PENGGUNAAN KATALIS ZEOLIT DALAM ESTERIFIKASI TERHADAP RENDEMEN DAN KUALITAS BIODIESEL MINYAK JARAK PAGAR (Jatropha curcas L.) Sudradjat, Sudradjat; Marsubowo, Agung; Yuniarti, Karnita
Jurnal Penelitian Hasil Hutan Vol 27, No 3 (2009): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2438.658 KB) | DOI: 10.20886/jphh.2009.27.3.256 - 266

Abstract

Esterifikasi merupakan salah satu tahapan dalam pembuatan biodiesel yang bertujuan untuk menurunkan nilai bilangan asam lemak bebas pada minyak nabati yang digunakan sebagai bahan baku pembuatan biodiesel. Pada umumnya proses esterifikasi dilakukan dengan menggunakan katalis asam cair seperti HCl dan H2SO4. Katalis padat, seperti zeolit, berpotensi untuk dikembangkan lebih lanjut dalam proses esterifikasi minyak jarak pagar. Penelitian bertujuan untuk mengetahui pengaruh penggunaan zeolit sebagai katalis pada proses esterifikasi minyak jarak pagar terhadap rendemen dan kualitas biodiesel yang dihasilkan. Hasil yang diperoleh menunjukkan bahwa zeolit teraktivasi dengan kadar 3% (b/b) dari minyak yang diesterifikasi memiliki potensi yang besar untuk dikembangkan lebih lanjut sebagai katalis pada proses esterifikasi minyak jarak pagar karena menurunkan kadar asam lemak bebas dalam minyak secara signifikan. Penggunaan ulang zeolit untuk proses esterifikasi minyak jarak pagar pada prinsipnya dapat dilakukan setelah zeolit dicuci dengan air atau alkohol, akan tetapi berpotensi menurunkan kualitas biodiesel yang dihasilkan.
Influence of Manure, Nitrogen, Phosphorus and Potassium Fertilizer Application on Growth of One-year-old Oil Palms on Marginal Soil in Jonggol, Bogor, Indonesia Sudrajat, Sudradjat; Sukmawan, Yan; Sugiyanta, Sugiyanta
Journal of Tropical Crop Science Vol 1 No 2 (2014): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.651 KB) | DOI: 10.29244/jtcs.1.2.18-24

Abstract

The oil palms (Elaeis guineensis Jacq.) are highlyefcient oil producers. It produces ve to seven timesmore vegetable oil per hectare than soybean, sunower,and rapeseed. The objectives of this research were tostudy the role of organic and N, P, and K fertilizers ongrowth of one-year-old immature oil palm on marginalsoil in Jonggol. The research was conducted at IPBCargill Teaching Farm (ICTF) of Oil Palm, Jonggol,Bogor,West Java from March 2013 to March 2014. Theexperiment was arranged in a factorial experimentfollowing a randomized block design with threereplications. The rst factor was organic fertilizer(manure) consisting of 0 (O), 15 (O1) and 30 (O2) kg pertree per year. The second factor was inorganic fertilizerconsisting of 0 (S0); 0.25 kg N + 0.25 kg P O + 0.39 kg 2 5K O(S ) 0.50 k N+ 0.50 kg P O + 0.78 kg K O(S ) 2 25 2 1and g 2per tree. The results demonstrated that application ofmanure up to 30 kg per tree per year did not affect thegrowth of one-year-old oil palm. Application of 0.50 kg N+ 0.50 kg P O + 0.78 kg K O highest 2 5 2 per tree gave theresult in increasing frond production, stem girth, and leafnutrient concentration. The results of leaf analysis andplant growth responses suggested that the rates ofmanure and inorganic fertilizers applied in this study arenot sufcient to improve young oil palm growth inmarginal soil in Jonggol.Keywords: cow manure, critical nutrient level, inorganicfertilizer, soil fertility, vegetative growth
The Roles of Asystasia gangetica (L.) T. Anderson and Ridge Terrace in Reducing Soil Erosion and Nutrient Losses in Oil Palm Plantation in South Lampung, Indonesia Asbur, Yenni; Yahya, Sudirman; Murtilaksono, Kukuh; Sudradjat, Sudradjat; Sutarta, Edy Sigit Sutarta Sigit
Journal of Tropical Crop Science Vol 3 No 2 (2016): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.122 KB) | DOI: 10.29244/jtcs.3.2.49-55

Abstract

Asystasia gangetica (L.) T. Anderson is a weed commonly found on oil palm plantations and can be used as cover crop for mature oil palm plantations due to its tolerance to shading. The use of cover crop is  a soil conservation technique to support sustainable availability of soil nutrients by reducing erosion and nutrients loss, particularly during the rainy seasons. This research aims to determine the roles of A. gangetica as cover crop for measures against erosion and nutrients loss in mature oil palm plantation. This research was conducted in oil palm plantation, Unit Rejosari, PT Perkebunan Nusantara (PTPN) VII, District of Natar, South Lampung Regency from August 2014 to April 2015. The research used split block design in randomized complete block design with two factors and six replications. The main plots were ridge terrace, namely with and without ridge terrace. The sub plots were cover crops, namely with and without cover crops A. gangetica. The results show that using A. gangetica as cover crops in mature oil palm plantations effectively minimized erosion and loss of organic C, N, P, and K by 95.7%, 93.4%, 96.0%, and 90.0 %, respectively. The use of cover crop became more effective when combined with ridge terrace and reduced erosion by 94.1% and loss of organic C, N, P and K by 99.1%, 99.2%, 90.0% and 98.5%, respectively.
PKM Uji Kompetensi Bidang Keahlian Akuntansi Di SMK Bina Sejahtera Kota Bogor Sudradjat, Sudradjat; Djanegara, Moermahadi Soerja
Jurnal Abdimas Dedikasi Kesatuan Vol 1 No 1 (2020): JADKES Edisi Juli 2020
Publisher : LPPM Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (245.148 KB) | DOI: 10.37641/jadkes.v1i1.319

Abstract

Uji Kompetensi Keahlian (UKK) merupakan proses penilaian melalui pengumpulan bukti yang relevan apakah seseorang kompeten atau belum kompeten pada suatu klasifikasi tertentu. UKK diikuti oleh siswa dan siswi Sekolah Menengah Kejuruan (SMK). UKK disusun berdasarkan skema sertifikasi sesuai dengan jenjang kualifikasi peserta UKK yang memuat kemampuan untuk melaksanakan pekerjaan spesifik, operasional dan penjaminan mutu. Peraturan Menteri Pendidikan dan Kebudayaan Nomor 34 tahun 2018 tentang Standar Nasional Pendidikan SMK/MAK, tujuan penilaian hasil belajar adalah: (1) mengetahui tingkat capaian hasil belajar siswa; (2) mengetahui pertumbuhan dan perkembangan peserta didik; (3) mendiagnosis kesulitan belajar peserta didik; (4) mengetahui efektivitas proses pembelajaran; dan (5) mengetahui pencapaian kurikulum. Sedangkan tujuan pelaksanaan Ujian Kompetisi Keahlian (UKK) adalah: (a) mengukur pencapaian kompetensi siswa SMK yang telah menyelesaikan proses pembelajaran sesuai kompetensi keahlian yang ditempuh; (b) memfasilitasi siswa SMK yang akan menyelesaikan pendidikannya untuk mendapatkan sertifikat kompetensi dan/atau sertifikat uji kompetensi; (c) mengoptimalkan pelaksanaan sertifikasi kompetensi yang berorientasi pada capaian kompetensi lulusan SMK sesuai Kerangka Nasional Indonesia; (d) memfasiliasi kerjasama SMK dengan dunia usaha/industri dalam rangka pelaksanaan uji kompetensi sesuai kebutuhan dunia usaha dan dunia industri. Kompetensi keahlian akuntansi adalah salah satu bagian dari bidang keahlian bisnis manajemen di SMK Bina Sejahtera yang mendapat minat dari masyarakat selain bidang keahlian bisnis manajemen yang lain seperti pemasaran dan administrasi perkantoran. Kata Kunci : Kompetensi, SMK, Siswa
PKM Uji Kompetensi Bidang Keahlian Akuntansi di SMK Pembangunan Kota Bogor Sudradjat, Sudradjat; Amyar, Firdaus
Jurnal Abdimas Dedikasi Kesatuan Vol 1 No 1 (2020): JADKES Edisi Juli 2020
Publisher : LPPM Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.122 KB) | DOI: 10.37641/jadkes.v1i1.321

Abstract

Uji Kompetensi Keahlian (UKK) bertujuan untuk mengukur pencapaian kompetensi siswa pada level tertentu sesuai kompetensi keahlian yang ditempuh selama masa pembelajaran di SMK. UKK dilaksanakan oleh satuan pendidikan dalam bentuk ujian praktik yang menguji aspek pengetahuan, keterampilan, dan sikap. UKK dilaksanakan menggunakan standar yang ditetapkan oleh industri, Lembaga Sertifikasi Profesi, dan/atau perangkat uji yang dikeluarkan oleh Kementerian Pendidikan dan Kebudayaan. Satuan pendidikan yang menyelenggarakan UKK harus dinyatakan layak sebagai tempat uji kompetensi oleh koordinator Ujian Nasional Tingkat Provinsi atau Lembaga Sertifikasi Profesi. Sebagaimana tahun sebelumnya, nilai UKK akan diperhitungkan sebagai Nilai Ujian Sekolah untuk mata pelajaran kompetensi kejuruan. Perangkat UKK yang dikeluarkan oleh Kementerian Pendidikan dan Kebudayaan bersifat terbuka dan peserta uji dapat berlatih menggunakan perangkat ujian tersebut sebelum pelaksanaan ujian. Secara umum perangkat Uji Kompetensi Keahlian terdiri atas : (1) Soal Praktik Kejuruan (SPK) adalah berupa penugasanbagi peserta uji untuk membuat atau proses dan mengerjakan suatu produk/jasa; (2) Pedoman Penilaian Soal Praktik (PPSP) adalah instrumen yang digunakan untuk pemberian skor setiap komponen penilaian. Lembar penilaian memuat komponen penilaian, sub-komponen penilaian, pencapaian kompetensi, dan kriteria/rubrik penilaian; dan (3) Instrumen Verifikasi Penyelenggara Ujian Praktik Kejuruan (InV) adalah instrumen yang digunakan untuk menilai kelayakan satuan pendidikan atau institusi lain sebagai tempat penyelenggaraan ujian Praktik Kejuruan. Instrumen verifikasi memuat standar persyaratan peralatan utama, standar persyaratan peralatan pendukung,standar persyaratan tempat/ruang serta memuat persyaratan penguji yang terdiri atas penguji internal dan eksternal. Kata Kunci : Kompetensi, Pembelajaran, Siswa
Adaptasi Tanaman Indigofera zollingeriana (Miquel 1855) (Leguminosae : Indigofereae) pada Berbagai Tingkat Naungan Saijo Saijo; . Sudradjat; Sudirman Yahya; Yayat Hidayat
Jurnal Ilmu Pertanian Indonesia Vol. 23 No. 3 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.019 KB) | DOI: 10.18343/jipi.23.3.240

Abstract

Indigofera zollingeriana is a bush type legume plant that grows well in full light but tolerant to shade conditions. Modification efforts of the environment with paranet shade treatment are the accurate approach. The objective of this research was to study the tolerance limit of I. zollingeriana plant at various shade levels. The study was conducted in October 2016-April 2017 at the Leuwikopo-IPB Bogor and used randomized block design with one shade factor (0, 40, 65, and 80%). The results of the measurement of microclimate with various shading levels showed that in the shade treatment 40%, the intensity of light decreased by 40% the temperature decreased by 6%, while the humidity increased by 10%. In the 65% shade, the light intensity decreased by 62%, the temperature decreased by 10%, while the humidity increased by 24%. In the 80% shade, the light intensity decreases 95%, the temperature decreases 13%, while the humidity increases 34%. The shade intensity has a real significant on decreasing stem diameter, number of branches, canopy dry weight, and roots. I. zollingeriana is rather tolerant of shade and it is able to adapt to shade up to 40%.
KERAGAAN PASTURA Brachiaria humidicola (Rendle) Schweick PADA SISTEM PENGGEMBALAAN DAN STOCKING RATE BERBEDA DI LAHAN PERKEBUNAN KELAPA Selvie D. Anis; M.A. Chozin; M. Ghulamahdi; Sudradjat Sudradjat; H. Soedarmadi
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 3 No 2
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.653 KB) | DOI: 10.24843/Pastura.2014.v03.i02.p07

Abstract

Integrasi pastura dan ternak sapi ke dalam sistem pertanian berbasis kelapa diharapkan dapat meningkatkan efisiensi penggunaan lahan secara berkelanjutan. Percobaan ini bertujuan mempelajari pengaruh stocking ratedan sistem penggembalaan terhadap keragaan pastura. Penelitian ini telah dilakukan di Kebun Percobaan Balai Penelitian Kelapa dan Palma Lain (BALITKA) Manado sejak Juli 2009 sampai Juni 2010. Perlakuan terdiridari dua sistem penggembalaan dan tiga stocking rate diatur dalam pola petak terpisah yang didasarkan pada rancangan acak kelompok (RAK). Variabel yang diukur adalah jumlah tanaman induk, jumlah ground tiller,jumlah aerial tiller, bobot akar dan bobot crown. Hasil percobaan menunjukkan bahwa semua parameter keragaan pastura yang terbaik diperoleh pada interaksi antara sistem penggembalaan rotasi (SP2) dan stockingrate 2,31 UT (SR3).
Review Of The Collateral Valuation Procedures By The Internal Appraisal In Loan Disbursement At PT. Pasar Dana Pinjaman (Danamas) Larasati, Dinda; Sudradjat, Sudradjat
Jurnal Aplikasi Bisnis Kesatuan Vol. 3 No. 2 (2023): JABKES Edisi Agustus 2023
Publisher : Program Vokasi dan LPPM IBI Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jabkes.v3i2.2054

Abstract

Collateral is an asset or property provided by the borrower to the lender in order to obtain the loan facility. Collateral is one of the most important things in lending because of its role as the second way out when the default of event occurs in a loan. Therefore, a division and special work procedures are needed to asses the feasibility of an object to be used as collateral. This review was conducted to find out the characteristics of assessable assets that can be financed and used as a collateral by PT. Pasar Dana Pinjaman, as well as to identify the collateral appraisal procedures by internal appraisal, and obstacles faced during the collateral appraisal process. The result of this review show that assets that can be used as collateral are non-movable tangible assets with marketable value, no over-financing, and free from disputes (can be legally bound). Considering the capacity of internal appraisal, collateral that can be appraised by the internal appraisal are those that meets the following criteria, which is total exposure below IDR 10 billion, located within a maximum radius of 30 km from the operational office, classified as a simple property, and there are no negative lists around them. Based on the results of the review of the collateral appraisal procedure by internal appraisal at PT. Pasar Dana Pinjaman, it can be conclude that the internal appraisal division has a systematic procedure in place which is include in the internal appraisal SOP and is in compliance with the standards set by MAPPI, from order acceptance to assessment report. Obstacles faced by the internal appraisal division during the appraisal process are the difficulties of finding comparable data, hard-to-reach Person In Charge, and indications of fraud during appraisal process.
Working Capital and Financial Performance of Indonesian Manufacturing Companies: Before and During COVID-19 Ruhadi, Ruhadi; Mai, Muhamad Umar; Sudradjat, Sudradjat
Jurnal Internasional Penelitian Bisnis Terapan Vol 6 No 01 (2024)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/ijabr.v6i01.338

Abstract

This research intends to reveal two important thoughts related to changes in working capital policies before and during the COVID-19 pandemic in Indonesia. This is essential since most companies’ working capital policy is aggressive during the normal period but conservative during the difficult period (such as COVID-19), where the demand for products fall off due to a decrease in people's purchasing power. Further, this study attempts to investigate the impact of working capital on company financial performance for both time periods. This study used a sample of manufacturing companies listed on the Indonesian capital market from 2017 to 2021. The Wilcoxon signed-rank test was employed to assess changes in working capital policies while panel data regression was utilized as an analytical technique to test the impact of working capital policies on financial performance. This study reveals that, first, working capital policies measured by Cash Holding Level (CHL) expanded dramatically during COVID-19 but remained unchanged when being measured by Cash Interactive Effect (CIE) and Gross Working Capital Ratio (GWCR). Second, working capital policies prior to COVID-19 measured by CHL and CIE had a favorable and significant effect on company financial performance, measured by Return on Assets (ROA) and Return on Equity (ROE).
Pengaruh Partisipasi Anggaran Dan Motivasi Terhadap Kinerja Karyawan Putra, Aprilian; Sudradjat, Sudradjat; Sastra, Heri; Nurjanah, Yayuk
Jurnal Ilmiah Akuntansi Kesatuan Vol. 10 No. 1 (2022): JIAKES Edisi April 2022
Publisher : Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jiakes.v10i1.1265

Abstract

Partisipasi penyusunan anggaran dan motivasi adalah faktor yang memiliki pengaruh pada kinerja karyawan. Pendekatan yang dipilih oleh peneliti adalah pendekatan kuantitatif studi kasus. Penelitian ini bermaksud untuk mengetahui pengaruh partisipasi anggaran dan motivasi pada kinerja karyawan BPJS Ketenagakerjaan. Teknik dalam pengambilan data dengan cara mem-blasting kuesioner melalui email kepada populasi yakni seluruh Kepala Bidang dan Asisten Deputi di seluruh unit kerja yang berjumlah 615 orang . Alat analisis data yang digunakan pada penelitian ini adalah analisis liner berganda. Hasil Penelitian menunjukkan bahwa (1) Partisipasi anggaran berpengaruh terhadap kinerja karyawan di BPJS Ketenagakerjaan. Sehingga karyawan yang diikutkan dan di partisipasikan dalam penyusunan anggaran, mempengaruhi kinerja karyawan. (2) Motivasi berpengaruh terhadap kinerja karyawan di BPJS Ketenagakerjaan. Atasan dan atau rekan yang memberikan motivasi kepada karyawan merupakan pendorong peningkatan kinerja karyawan. (3) Partisipasi anggaran dan Motivasi berpengaruh terhadap kinerja karyawan di BPJS Ketenagakerjaan. Dengan adanya pengaruh pastisipasi anggaran dan juga motivasi akan meningkatkan kinerja karyawan secara signifikan.
Co-Authors Abdul Roup, Abdul Agung Marsubowo, Agung Agus Ismangil AI DARIAH Amanda, Dina Aminuyati Arief, Khozin Ariz, Nail Fadhillah Arvin, Amanda Thalia Arwan Gunawan Asep Saepulrohman Asyifa, Siti Aziz, Sepul Budi Kartiwa Callista, Christine Dahtiah, Neneng Deden Saprudin Dewi Riniarti Dhika Prita Hapsari Dwi Putri Wulandari Ervizal AMZU Fatimah Abdillah Febriyan, Febriyan Firdaus Amyar Furqoni, Hafith H. Soedarmadi Hafith Furqoni, SP., M.Si. Ph.D. Haris Syahbuddin Hariyadi, Hariyadi Herdhata Agusta Heri Sastra HUTAPEA, Riauli Susilawati Ishak, Jouzar Farouq Jan Horas Veryady Purba Jasmadeti, Jasmadeti Karnita Yuniarti, Karnita Kukuh Murtilaksono Larasati, Dinda Lawrence, Sabrina Lili Indrawati Luh Putu Ratna Sundari M A Chozin M. Ghulamahdi Maju Lumban Tobing Mochamad Umar Mai Moermahadi Soerja Djanegara Muhammad Hasjim Bintoro Djoefrie Mulia, Isnan Musa Hubeis Pienyani Rosawanti Prabowo, Aji Patra Aria Prasetia, Ega Nur Purnamayani, Rima Putra, Aprilian Putra, Yoga Adi Putri, Wulan Wahyuni Rossa Ramanis, Imelya Riptiandi, Akmal Firli Rosita Dewi Rovishany, Nabila Daffa Ruhadi Ruhadi Saijo Selvie D. Anis Setia, Budi Sudirman Yahya Sudirman Yahya Sudjali, Iwan Purwanto SURYA, Rendra Trisyanto Suryanti, Cecilia valentina Sri Hadi Sutarta, Edy Sigit Sutarta Sigit Syahrbanu Aqilah Nainawa Tarigan , Suria Darma Tri Marlina Tullah, Dewi Sarifah Wahyu Gendam Prakoso, Wahyu Gendam Yan Sukmawan, Yan Yanti Rufaedah, Yanti Yayat Hidayat Yayuk Nurjanah Yenni Asbur