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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) ComEngApp : Computer Engineering and Applications Journal Jurnal Ilmu Pendidikan Agrikultura Jurnal Teknik Sipil Animal Agricultural Journal Journal of Tropical Soils Jurnal Ekonomi dan Kewirausahaan Manajemen Sumber Daya Manusia Pharmaciana: Jurnal Kefarmasian Jurnal Bahan Alam Terbarukan Jurnal Teknik Elektro TABULARASA Tadris: Jurnal keguruan dan Ilmu Tarbiyah SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Journal of Nonformal Education JITRO (Jurnal Ilmiah dan Teknologi Peternakan Tropis) Jurnal Spektra JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Annual Research Seminar Jurnal Zeolit Indonesia Majalah Obat Tradisional Jurnal Ilmiah Administrasi Publik (JI@P) Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA Vidya Karya Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Pendidikan Biologi Edu Elektrika Journal Edu Komputika Journal International Journal of Science and Applied Science: Conference Series Unnes Science Education Journal Titian Ilmu: Jurnal Ilmiah Multi Sciences JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Jurnal Ilmiah Hukum LEGALITY Language Literacy: Journal of Linguistics, Literature, and Language Teaching Agrosains: Jurnal Penelitian Agronomi Caraka Tani: Journal of Sustainable Agriculture INKUIRI : Jurnal Pendidikan IPA BIOEDUKASI Jurnal Ilmiah Pendidikan Fisika Indonesian Journal of Chemistry Agrin : Jurnal Penelitian Pertanian Dinamisia: Jurnal Pengabdian Kepada Masyarakat Chemistry Indonesian Journal of Chemical Research ENSAINS JOURNAL Bioedukasi: Jurnal Pendidikan Biologi JURNAL PENDIDIKAN TAMBUSAI Jurnal Pelita PAUD Jurnal Basicedu Astonjadro International Journal of Supply Chain Management Informatik : Jurnal Ilmu Komputer Jurnal Sains Sosio Humaniora Jurnal Bimbingan Konseling Jurnal Biotek JISICOM (Journal of Information System, Infomatics and Computing) JURNAL CRANKSHAFT Jurnal Agroplasma Agro Bali: Agricultural Journal Stannum : Jurnal Sains dan Terapan Kimia Journal of SPORT (Sport, Physical Education, Organization, Recreation, and Training) PINISI Discretion Review Jurnal Darma Agung Jurnal Tarbiyatuna : Kajian Pendidikan Islam Jurnal Komunitas Yustisia Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Eduproxima : Jurnal Ilmiah Pendidikan IPA Edudikara: Jurnal Pendidikan dan Pembelajaran Jurnal Penelitian AgriHealth: Journal of Agri-food, Nutrition and Public Health MURHUM : JURNAL PENDIDIKAN ANAK USIA DINI Jurnal Cahaya Mandalika Jurnal Jendela Inovasi Daerah Bioscientist : Jurnal Ilmiah Biologi MANAJERIAL: Jurnal Inovasi Manajemen dan Supervisi Pendidikan Proceeding Biology Education Conference Insearch: Information System Research Journal Journal of Basic Education Research Jurnal Inovasi Pembelajaran di Sekolah Jurnal Kajian Pendidikan IPA Journal Evaluation in Education (JEE) Jurnal Mandiri IT Jurnal Esensi Infokom: Jurnal Esensi Sistem Informasi dan Sistem Komputer Jurnal Komunikasi Islam JURNAL PENDIDIKAN INDONESIA: Teori, Penelitian, dan Inovasi Improvement: Jurnal Manajemen dan Bisnis DIKSAINS : Jurnal Ilmiah Pendidikan Sains Journal Indonesia Law and Policy Review (JILPR) CRANE: Civil Engineering Research Journal Jurnal Hukum dan Etika Kesehatan (JHEK) Jurnal Pengabdian Masyarakat Inovasi BISMA Cendekia PERTANIAN TROPIK Journal of Language, Literature, and Arts (JoLLA) Jurnal Basicedu Prosiding University Research Colloquium Journal of Biodiversity and Biotechnology International Journal of Educational Research Excellence (IJERE) Jurnal Indonesia Sosial Sains UNNES International Conference on ELTLT Filogeni: Jurnal Mahasiswa Biologi Jurnal Ilmiah Manajemen dan Kewirausahaan Amplitudo: Jurnal Ilmu dan Pembelajaran Fisika Mutiara: Multidiciplinary Scientifict Journal International Journal of Economics and Management Bagimu Negeri : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat Itekes Bali Law and Economics Tematik Jurnal Ilmiah IPS dan Humaniora (JIIH) Andromeda: Jurnal Pengabdian Masyarakat Rafflesia Bulletin of Chemical Reaction Engineering & Catalysis Foreign Language Instruction Probe Adpebi Science Series Jurnal Pengabdian Nasional (JPN) Indonesia Jurnal Ekonomi Manajemen Dan Bisnis (JEMB) Rechtsvinding Jurnal Dunia Peternakan Jurnal Pendidikan IPA Indonesia KAFEBIS GeoEco Jurnal Pelita PAUD Prosiding SeNTIK STI&K Investasi : Inovasi Jurnal Ekonomi Dan Akuntansi PAUDIA: JURNAL PENELITIAN DALAM BIDANG PENDIDIKAN ANAK USIA DINI IJIS Edu : Indonesian Journal of Integrated Science Education International Journal of Economics and Management Research KOMPUTASI Jurnal Kajian Bimbingan dan Konseling
Sutarno Sutarno
Universitas Negeri Semarang
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Kajian Nilai Daya Dukung Tanah Lempung Merah Dengan Bahan Tambah Kapur Melalui Uji CBR Triwardaya, Triwardaya; Pawiro, Dadiyono Amat; Ukiman, Ukiman; Sutarno, Sutarno
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 20, No 2 (2015): WAHANA Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v20i2.147

Abstract

Soil materials that the grain size of the composition can comprise coarse material (gravel, sand) and fine materials (silt and clay). At the material / soil materials that include fine-grained soil that contains granules ø 0.075 mm over 50% will be dominated by clay content. This material will have a high value of plasticity and low power as well as developing a sizeable shrinkage. Lime that has binding properties (lime stone) when added to the material clay changes will provide both improved quality, bulk density, as well as lime-enabled so the added material on clay red around POLINES as filler material (filter) with different variations in the mix and treatment peneraman and soaking would boost its strength tested by the carrying capacity by means of CBR (California Bearing Ratio) test results in the laboratory value of CBR plans on condition brooded until 7 days: CBR its 2.4 kp + 20.8 with a level of correlation R = 0.9328 , And soaked conditions until 7 days: his CBR kp 4.4 - 0.8 with a degree of correlation R = 0.9874.
Studies the Cold Cooling using Bio-Nanofluids, Characteristics and Applications in Milling Operations on High-Hardness Steels Sugiantoro, Bambang; Sutarno, Sutarno; Sakuri, Sakuri; Rusnaldhy, Rusnaldhy
Rekayasa Mesin Vol 10, No 1 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.01.10

Abstract

The cooling system has an important role in the quality of machining results, the cooling fluid (air/fluid) are developed to be able to reduce heat and friction arising from the formation of the product, but also environment-friendly. The use of natural oils has been tested in various machining conditions with a minimum quantity lubrications (MQL) method, including the addition of materials that can improve fluid convective properties. Cooling performance with natural materials results in surface roughness according to product smoothness requirements according to ASTM classification and is able to maintain a low tool temperature and reduce chatter/tools vibration. Improvement of the MQL process, temperature, and compressed air pressure conditions determine cooling performance, the lower the compressed air temperature will increase the fluid's ability to reduce tool temperature and increase durability and tool life. The process of forming steel with high hardness requires a cooling system with special conditions. The properties of natural oils will be enhanced by the convective thermophysical properties by the addition of Titanium Oxide (TiO2), CuO and Aluminum Oxide (AL2O3). Natural oils used in the study are corn oil, sunflower oil, water with the addition of nanoparticles. The formation of nanofluids uses magnetic stirrer with varying time and rotation speed, and % weight ratio. The MQL System is equipped with cold air from the compressor which is cooled by utilizing the evaporation/refrigeration process which is kept constant at 10oC. The cooling system is equipped with a microcontroller/interface to keep the air temperature/pressure constant. In this paper the data presented is a study of cooling in the hard milling process to determine the most nanofluid/dominant factors that affect the results. The results showed that the use of cutting fluids reinforced by nanoparticles in natural oils in a minimum amount increased lubrication properties. There is a significant effect on the use of cooling fluid types with surface roughness, fluids with high lubrication properties, significant to reduce surface roughness, cutting temperature and power consumption. The nanofluid prove was able to apply in an environment-friendly manufacturing process very promising.
PERTUMBUHAN DAN PRODUKSI HIJAUAN GAMAL (Gliricidia sepium) DENGAN BERBAGAI DOSIS PUPUK ORGANIK CAIR Winata, Nur Arif Setya Hendra; Karno, Karno; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 1 (2012): Volume 1, Nomor 1, Tahun 2012
Publisher : Animal Agriculture Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.387 KB)

Abstract

The study was conducted to determine the growth and production gamal using liquid organic fertilizer. The data obtained were analyzed statistically using a completely randomized design (CRD) and tested further if there is a difference between treatments. Treatment of different doses of liquid fertilizer, which is 0%, 1%, 3% and 5% with 5 replicates, 75cmx50cm spacing so that each plot consisted of 16 cuttings of the experiment, the number of 320 eksplant. Implementation of the research carried out for 4 months, with the first 2 months and 2 months uniformity next crop done taking data. Based on the results of this study concluded that liquid organic fertilizer doses on forage gamal low so that growth and high forage production was not achieved. A need to increase doses of more than 5% liquid organic fertilizer.   Key Words: Growth, Production, Gamal, Liquid Organic Fertilizer   ABSTRAK Penelitian ini dilakukan untuk mengetahui pertumbuhan dan produksi gamal  dengan menggunakan pupuk organik cair. Data yang diperoleh dianalisis statistik dengan menggunakan Rancangan Acak Lengkap (RAL) dan diuji lanjut bila terdapat perbedaan diantara perlakuan. Perlakuan dosis pupuk cair yang berbeda, yaitu 0%, 1%, 3% dan 5% dengan 5 ulangan, Jarak tanam 75cmx50cm sehingga  setiap petak terdiri dari 16 stek percobaan, jumlah tanaman 320 stek batang. Pelaksanaan penelitian dilakukan selama 4 bulan, dengan 2 bulan pertama penyeragaman tanaman dan 2 bulan berikutnya dilakukan pengambilan data. Berdasarkan hasil penelitian dapat disimpulkan bahwa dosis pemberian POC pada hijauan gamal masih rendah sehingga pertumbuhan dan produksi hijauan yang tinggi tidak tercapai. Perlu adanya peningkatan dosis pemberian POC lebih dari 5%.   Kata Kunci: Pertumbuhan, Produksi, Gamal, Pupuk Organik Cair.
PERBANYAKAN VEGETATIF CARA STEK Desmodium cinereum DAN Hibiscus rosa sinensis L. DENGAN PEMBERIAN ZAT PENGATUR TUMBUH ALAMI DAN AUKSIN SINTETIS Kusumah, Yayi Sonia Anggar; Karno, Karno; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 1 (2012): Volume 1, Nomor 1, Tahun 2012
Publisher : Animal Agriculture Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.027 KB)

Abstract

Penelitian bertujuan meningkatkan keberhasilan stek tanaman D. cinereum dan H. rosa sinensil L, membandingkan tingkat efesiensi pemakaian antara zat pengatur tumbuh alami yang bersumber dari urine dan ZPT sintetis. Percobaan disusun dalam rancangan acak lengkap pola faktorial dengan tiga kali ulangan. Faktor pertama adalah jenis tanaman yaitu tanaman D. cinereum dan H. rosa sinensis L. dan faktor kedua adalah perlakuan zat pengatur tumbuh (0% urin, 25% urin, 50% urin dan 1% auksin sintetis). Parameter yang diamati adalah daya tumbuh, panjang tunas, jumlah tunas, jumlah daun, panjang akar, jumlah akar, bahan kering akar dan bahan kering daun. Hasil penelitian menunjukan Pemberian ZPT alami 25% urin, ZPT 50% urin tidak memberikan pengaruh terhadap Pertumbuhnan bahkan menurunkan pertumbuhan terutama pada tanaman D. cinereum. Pemberian ZPT 1% Auksin Sintetis memberikan pengaruh yang lebih baik terhadap Daya tumbuh, pada tanaman D. cinereum dan H. rosa sinensis L dibanding pemberian ZPT 25% urin, ZPT 50% urin dan Kontrol.ABSTRACTThe study was conducted with the aim to improve the success of plant cuttings D. cinereum and H. rosa sinensil L. comparing the level of efficiency The use of the natural growth hormone from urine and synthetic auxin. The treatments were allotted to completely randomized design with 2x4 factorial pattern and 3 replications in each treament. The first factor is the type of plant is D. cinereum and H. rosa sinensis L. and the second factor is the growth hormone treatments (0% urine, 25% urine, 50% of urine and 1% synthetic auxin). Parameters measured were growing power, shoot length, number of shoot, number og leaves, root length, number of roots, root dry matter and leaf dry matter. The results showed 25%, 50 % Provision of natural growth hormone of the urine does not give effect to growth even lower growth mainly on the plant D. cinereum. Giving 1% Synthetic Auxin give better effect to the Power grows, the plant D.cinereum and H.rosa sinensis L compared with 25% giving urine, 50% urine and Control.
KUALITAS HIJAUAN KACANG PINTOI (Arachis pintoi) PADA BERBAGAI PANJANG STEK DAN DOSIS PUPUK ORGANIK CAIR Rachmansyah, Alfi; Sumarsono, Sumarsono; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 1 (2012): Volume 1, Nomor 1, Tahun 2012
Publisher : Animal Agriculture Journal

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Abstract

This study aims to determine the quality of the forage pintoi peanut (Arachispintoi) at various cutting length and liquid organic fertilizer (POC) is different. Thematerial used is Arachis pintoi plant, Liquid Organic Fertilizer and granules(Herbafarm). The instrument used was 5 kg capacity scales, analytical scaleselectrical capacity of 1 kg with 0.01 g accuracy, pumpkin destruction, burette, beakerglass, porcelain bowls, H2SO4, N Hexan, NaOH, MB + MR indicator, filter paper,shovel, hoes, buckets, ruler / tape measure, stationery, tape, scissors, cutter, paperlabels, plastic bag, oven, furnace and eksikator. The trials were prepared using acompletely randomized design patterned Factorial 2 x 4 with 3 replications, with thefirst factor of the length of cuttings and the second dose of liquid organic fertilizer(POC) is different. The cutting length consists of 2 segments (S1) and 3 segments(S2), while the dose of liquid fertilizer composed of 0 ml / l (P1), 5 ml / l (P2)(dosage recommendations), 10 ml / l (P3) and 15 ml / l (P4). The data obtained wereanalyzed range, when significant followed by Duncan multiple test areas (5%) todetermine differences between treatments. The results of the analysis showed that thetreatment of long-range cuttings and different doses of POC, and the interactions theyprovide no significant effect (P> 0.05) on levels of protein and fiber content of roughforage. The length of cuttings significant influence (P <0.05) the production of CrudeProtein. Production of crude protein peak obtained at treatment S2 (324,59 g) andfollowed by S1 (244,56 g).Key word: Arachis pintoi, cutting length, POC, crude protein and crude fiber
PERTUMBUHAN DAN BOBOT BAHAN KERING RUMPUT GAJAH DAN RUMPUT RAJA PADA PERLAKUAN ARAS AUKSIN YANG BERBEDA Mufarihin, Ahmad; Lukiwati, Dwi Retno; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 2 (2012): Volume 1, Nomor 2, Tahun 2012
Publisher : Animal Agriculture Journal

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Abstract

ABSTRAK   Urine sapi terdapat kandungan hormon auksin untuk merangsang pertumbuhan tanaman. Rumput gajah dan rumput raja adalah tanaman berkualitas unggul. Penelitian ini bertujuan pemanfaatan urine sapi betina sebagai sumber zat pengatur tumbuh pada tanaman, mengetahui kecepatan tumbuh, daya tumbuh, rasio tajuk dan akar, mengetahui titik optimal pertumbuhan kedua tanaman dari perlakuan aras urin sapi dan auksin sintetik. Penelitian telah dilaksanakan pada bulan Maret – Mei 2012 di lahan tanaman pakan Fakultas Peternakan dan Pertanian Universitas Diponegoro Semarang dan analisis bahan kering dilaksanakan di Laboratorium Ilmu Tanaman Makanan Ternak Fakultas Peternakan dan Pertanian Universitas Diponegoro Semarang. Hasil penelitian menunjukkan bahwa pemberian dosis urine sapi yang berbeda pada kedua tanaman tidak berpengaruh nyata terhadap kecepatan tumbuh, pertambahan tinggi, (P>0,01). Perlakuan jenis tanaman (R) berpengaruh sangat nyata terhadap perlakuan yang diujikan, kecuali pada uji rasio tajuk dan akar. Interaksi antar perlakuan (RxTy) tidak berpengaruh nyata pada uji kecepatan tumbuh, tetapi berpengaruh nyata terhadap daya tumbuh, tinggi tanaman (P<0,05) dan berpengaruh sangat nyata terhadap rasio tajuk dan akar (P<0,01). Daya tumbuh dan kecepatan tumbuh rumput gajah lebih tinggi dibandingkan rumput raja. Hasil penelitian disimpulkan perlakuan urine sapi berpengaruh terhadap pertumbuhan dan bobot bahan kering dengan hasil sesuai dengan hipotesis pada parameter tinggi tanaman.
KUALITAS HIJAUAN GAMAL (Gliricidia sepium) YANG DIBERI PUPUK ORGANIK CAIR (POC) DENGAN DOSIS BERBEDA Mayasari, Dita; Purbajanti, Endang Dwi; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 2 (2012): Volume 1, Nomor 2, Tahun 2012
Publisher : Animal Agriculture Journal

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Abstract

Penelitian yang dilakukan bertujuan untuk mengetahui pengaruh pemberian pupuk organik cair dengan dosis berbeda terhadap kualitas hijauan gamal (Gliricidia sepium). Rancangan percobaan yang digunakan dalam penelitian adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 5 ulangan. Pemberian dosis pupuk organik cair pada perlakuan T0, T1, T2 dan T3 masing-masing adalah 0, 1, 3 dan 5%. Parameter yang diamati adalah kadar protein dan serat kasar hijauan gamal. Hasil penelitian menunjukkan adanya pengaruh pemberian pupuk organik cair yang paling baik terhadap kualitas hijauan gamal (G. sepium) yaitu pada perlakuan T2 (3% POC) yang memiliki nilai kualitas paling tinggi dari perlakuan T0, T1 dan T3. Nilai kadar protein dan serat kasar perlakuan T2 adalah 19,64% dan 42,29%.Kata kunci : Gliricidia sepium; pupuk organik cair; protein kasar; serat kasarABSTRACT The study was conducted aimed to determine the effect of liquid organic fertilizer with different doses of the forage quality gamal (G. sepium). Experimental design used in the study was completely randomized design (CRD) with 4 treatments and 5 replications. Liquid organic fertilizer dosing in treatments T0, T1, T2 and T3, respectively 0, 1, 3 and 5%. Parameters measured were protein and crude fiber content of forage gamal. The results showed the influence of liquid organic fertilizer on forage quality gamal is the treatment T2 (3% POC) that have the highest-quality value of treatments T0, T1 and T3. Value protein and crude fiber treatment T2 was 19,64% and 42,29%.Keyword : Gliricidia sepium; liquid organic fertilizer; crude protein; crude fiber
KECERNAAN BAHAN KERING DAN BAHAN ORGANIK SECARA IN VITRO HIJAUAN Desmodium cinereum PADA BERBAGAI DOSIS PUPUK ORGANIK CAIR DAN JARAK TANAM Setiyaningsih, Kristiana Desy; Christiyanto, Marry; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 2 (2012): Volume 1, Nomor 2, Tahun 2012
Publisher : Animal Agriculture Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.886 KB)

Abstract

Penelitian dilakukan dengan tujuan untuk mengetahui dan mempelajari kecernaan bahan kering (KcBK) dan bahan organik (KcBO) secara in vitro hijauan D. cinereum pada berbagai dosis pupuk organik cair dan jarak tanam. Penelitian ini menggunakan rancangan acak lengkap (RAL) pola faktorial 4 x 2 dengan 3 ulangan. Dosis pupuk organik cair (P) sebagai faktor A (0, 1, 3, dan 5 ml/1 l air/petak) dan jarak tanam (S) sebagai faktor B (50 x 75 cm dan 25 x 50 cm). Parameter yang diamati adalah KcBK dan KcBO. Hasil penelitian menunjukkan bahwa KcBK dan KcBO yang tertinggi dicapai oleh P1S0 dibandingkan P2S0, P0S1, P2S1, P3S1, P1S1, P0S0 dan P3S0. Dosis pupuk organik cair (POC) berpengaruh nyata (p<0,05) terhadap KcBK dan KcBO. Jarak tanam tidak berpengaruh nyata terhadap KcBK dan KcBO. Nilai KcBK dan KcBO adalah 61,64; 61,39; 59,98; 59,67; 58,97; 58,86; 57,86; 53,88% dan 59,63; 59,45; 57,67; 57,23; 56,73; 56,15; 55,75; 48,02%. Dosis POC 3 ml/1 l air/petak (P2) memberikan pengaruh dengan nilai KcBK dan KcBO 60,53% dan 58,34% merupakan nilai kecernaan tertinggi.Kata kunci : D. cinereum; jarak tanam; pupuk organik cair; kecernaan in vitroABSTRACTThis research was conducted with the objective of identifying and studying the dry matter digestibility (DMD) and organic matter digestibility (OMD) in vitro forage D. cinereum at various doses of liquid organic fertilizer and plant spacing. This study used a completely randomized design (CRD) 4 x 2 factorial with three replications. Liquid organic fertilizer (P) as the factor A (0, 1, 3, and 5 ml / 1 l water / plot) and spacing (S) as the factor B (50 x 75 cm and 25 x 50 cm). Parameters measured were DMD and OMD. The results showed that the highest DMD and OMD achieved by comparison P1S0 P2S0, P0S1, P2S1, P3S1, P1S1, P0S0 and P3S0. Liquid organic fertilizer significantly (p <0.05) against DMD and OMD. Planting space did not significantly affect DMD and OMD. DMD and OMD value is 61.64; 61.39; 59.98; 59.67; 58.97; 58.86; 57.86; 53.88% and 59.63; 59.45; 57.67; 57.23; 56.73; 56.15; 55.75; 48.02%. Liquid organic fertilizer dose 3 ml / 1 l water / plot (P2) to give effect to the values DMD 60.53% and OMD 58.34% which is the highest digestibility values.Keyword : D. cinereum; planting space; liquid organic fertilizer; in vitro digestibility
PERTUMBUHAN HIJAUAN KACANG PINTOI (Arachis pintoi) PADA BERBAGAI PANJANG STEK DAN DOSIS PUPUK ORGANIK CAIR PERIODE PEMOTONGAN KEDUA Susanti, Susanti; Purbajanti, Endang Dwi; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 1 (2012): Volume 1, Nomor 1, Tahun 2012
Publisher : Animal Agriculture Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (332.405 KB)

Abstract

Penelitian ini bertujuan untuk mengetahui pertumbuhan hijauan kacang pintoi (Arachis pintoi) dengan panjang stek dan dosis pupuk organik cair (POC) yang berbeda. Penelitian ini dilaksanakan pada tanggal 28 November 2011- 12 April 2012 di lahan Ilmu Tanaman Makanan Ternak, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Semarang. Bahan yang digunakan adalah stek batang tanaman kacang pintoi (Arachis pintoi), pupuk organik cair (Herbafarm), air dan tanah. Peralatan yang digunakan adalah timbangan kapasitas 5 kg, timbangan elektrik analitis kapasitas 100 g dengan ketelitian 0,001 g, sekop, cangkul, ember, penggaris/meteran, alat tulis, isolasi, gunting, cutter, kertas label, dan plastik. Penelitian dilakukan dengan rancangan Acak Lengkap berpola Faktorial 2 x 4 dan 3 ulangan. Faktor pertama adalah panjang stek yang dipotong sepanjang 2 ruas dan 3 ruas. Faktor kedua adalah dosis pupuk organik cair, yaitu 0 ml, 5 ml, 10 ml, dan 15 ml. Parameter yang diamati adalah panjang tanaman, jumlah tunas, produksi hijauan segar dan produksi bahan kering. Data yang diperoleh dengan análisis ragam dan dilanjutkan dengan Uji Wilayah Ganda Duncan pada taraf 5%. Hasil analisis ragam memperlihatkan bahwa perlakuan panjang stek dan dosis POC yang berbeda tidak berpengaruh nyata terhadap panjang tanaman dan produksi bahan kering, tetapi panjang stek yang berbeda berpengaruh nyata (P<0,05) terhadap jumlah tunas dan produksi hijauan segar Arachis pintoi. Panjang tanaman, produksi segar dan produksi bahan kering tertinggi terdapat pada perlakuan S2P3, sedangkan jumlah tunas tertinggi pada perlakuan S2P1. Panjang stek 3 ruas (S2) dapat memberikan produksi hijauan yang lebih tinggi dari pada perlakuan panjang stek 2 ruas (S1). Tidak terdapat interaksi antara panjang stek 2 ruas dan dosis Pupuk 5 ml. Pemberian dosis unsur esensial bagi tanaman agar pertumbuhannya optimal harus sesuai kebutuhan tanaman. Apabila kurang atau berlebih menimbulkan efek negatif. Perlu adanya penelitian lanjutan untuk mengetahui jenis dan kebutuhan unsur hara bagi Arachis pintoi.Kata Kunci: Arachis pintoi, Panjang Stek, Dosis Pupuk Organik Cair (POC)
Application of Humic Acid Isolated From Kalimatan Peat Soil Modifying Magnetite for Recovery of Gold Rahmayanti, Maya; Abdillah, Guliston; Santosa, Sri Juari; Sutarno, Sutarno
Jurnal Bahan Alam Terbarukan Vol 8, No 2 (2019): December 2019 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v8i2.20392

Abstract

Humic acid modifying magnetite particles (Mag-HA) were developed for recovery of gold from chloride solution (HAuCl4). The Mag-HA particles were prepared by co-precipitation procedure with Fe(III) and Fe(II) chloride salts, sodium hydroxide, and humic acid. FTIR characterization for Mag-HA after modification indicated the presence of the specific absorption for functional groups of humic acid and Fe-O bonds, though with lower intensity. The Mag-HA particles exhibited a typical superparamagnetic characteristic with a saturation magnetization of 66.99 emu/g. The Mag-HA particles were applied for AuCl4- adsorption and results showed that the optimum adsorption of [AuCl4]- onto Mag-HA was found at pH 3. The adsorption kinetics can be described by a pseudo-second order equation and the adsorption isotherm of the Mag-HA particles agreed well with Langmuir adsorption equation. The maximum adsorbed amount of [AuCl4]- was 0.62 mmol/g and the XRD analysis confirms that the adsorption of Au(III) by Mag-HA was accompanied by the formation of elemental gold.
Co-Authors - Jumaeri A.A. Ketut Agung Cahyawan W Abd. Rasyid Syamsuri Abdat, Chadidjah Husain Abdillah, Guliston Abdul Mufid Abdurahman Abdurahman ACENG RUYANI Achmad Samsudin Adam Malik Aditya, Dicko Adrian Admira, Tb. M Adrie Adriano Adriano, Adriano Aesah, Siti Afidah, Umi Afrizal Mayub Agung Pramono, Agung Agus Murnomo Agustin, Kevin Ahmad Fali Oklilas Ahmad Laut Hasibuan Ahmad Mufarihin Ahmad Rifai Ahmad Rifai Ahmad Syamsuri Ahmad Zarkasi Akhtiar Sigit Samseno Akmal, Oktafiana AKTAVIA HERAWATI Al Mansur, Ahmad Jakfar Alfi Rachmansyah Amanulloh, Rivkih Amin Wahyudi Andika Persada Putera Andriani, Sefti Anggia, Anggia Anggita, Akas Anggraeniko, Litya Surisdani Anton Subarno ARI SUSILOWATI Ariadne L Juwono, Ariadne L Ariani, Ririn Arief Budyantoro Ariefa Primair Yani Ariefa Primairyani, Ariefa Arif Rahman Arwin Arwin Arwin Arwin As-Salimah, Ainun Mardiyah Asep Indra Komara Asmarawati, Anggun P Asmuni Asmuni Asyraq, Lathyfa Atmaja, Ayu Indra Atryadi Az-Zahra, Catalina Dara Ayu Baehaqi BAMBANG ARIYANTO, BAMBANG Bambang Purwanto, Muhammad Bambang Sugiantoro Bambang Tutuko Baskoro Adi Prayitno Baskoro Adi Prayitno Baskoro Baskoro, Baskoro Baskoro, Yesi Daniel Tri Bayangkari Karno, Adhitio Satyo BHAKTI KARYADI Budi Haryanto BUDI PRAMONO Budiono, R Chandra, Cindy CIAMAS, ELSERRA SIEMIN D. 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