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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia MEDIA KONSERVASI Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Kultur Demokrasi MetaCommunication; Journal Of Communication Studies Jurnal Teknik Mesin Mechanical Xplore

Cahyo Wibowo

Unknown Affiliation

Author-ID : 1511173

Agriculture, Biological Sciences & Forestry Automotive Engineering Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

Published : 7 Documents Claim Missing Document

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Articles

Evaluasi Pertumbuhan Tanaman Meranti (Shorea spp.) di Haurbentes BKPH Jasinga KPH Bogor Perum Perhutani Unit III Jawa Barat I Istomo; Cahyo Wibowo; Nurul Hidayati
Jurnal Manajemen Hutan Tropika Vol. 5 No. 2 (1999)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.834 KB)

Planting trials of Shorea spp. have been conducted outside their natural distributional range. Initially it was planted in Haurbentes Experimental Garden (1940) at Jasinga, West Java. This research is intended to get information about growth of all of Shorea's variety that have been planted at 1984, 1988 and 1992 at the location, so we can select the species that suitable to be explored. From each of them, we take four sample plots. The size of the sample plot is 50 m x 50 m or about 0,25 ha. The results of the trial showed that Shorea spp. stand was flowering and giving a good seed harvest. It was also shown that the biggest growth species is Shorea leprosula Miq., namely 30,65 cm (total height) and 19,88 m (diameter) at 13 years old. The averages of the height and diameter growth are 0,49-0,66 m and 0,48-0,64 cm per 6 month at 9 years old. The species that are suggested to be explored at the location are S. leprosula Miq., S. stenoptera Burck, S. stenoptera Burck forma and S. pinanga Scheff.

Pertumbuhan semai sengon dan mangium pada tanah padat Juang Rata Matangaran; Cahyo Wibowo; Ujang Suwarna
Jurnal Ilmu Pertanian Indonesia Vol. 15 No. 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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The research was conducted to examine the seedling of mangium (Acacia mangium and sengon (Paraserianthes falcataria) on compacted soil. Soil was compacted with a proctor test at the different level of bulk density (0.9;1.0; 1.1; 1.2; 1.3 g/cm3 ) with 10 replications. The compacted soil was put into the plastic pot. After 6 month growth in pot the seedling growth response was measured.The result showed that the root penetration and seedling height linearly decrease with the increase of bulk density. The root of seedling of mangium (Acacia mangium and sengon (Paraserianthes fa/cataria) could not penetrate deeply at the hardest soil (1.3 g/cm3 ). Roots needs space to grow. The space was occupied by soil particles and soil pores. Root may influence chemical and physical properties of soil. In related to the compacted soil the root penetration is the important variable which is affected by the soil hardness. Under the condition of decrease penetration, seedling can not grew well in lack of nutrient to be absorbed by the root. On the other hand the bulk density 1.3 g/cm3 showed difference for seedling height response. However, the growth response was significantly reduced at the level of 1.3 g/cm3. The bulk density 1,3 g/cm3 was the critical limit of soil hardness for the seedling of Mangium and Sengon growth.

Land Rehabilitation on Post-fire Area with Different Types of Soil in Gunung Mas Regency, Central Kalimantan Arin Annisa Fathia; Iwan Hilwan; Cahyo Wibowo
Media Konservasi Vol 24 No 1 (2019): Media Konservasi Vol. 24 No. 1 April 2019
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Forest and land fires can cause damage to forest ecosystems. Repeated fires cause the natural succession to be disrupted. Therefore, based on these problems, to improve the productivity of land after fires in Central Kalimantan, rehabilitation efforts needs to be done. This study aims to analyze the growth response of forestry plants in post-fire area with different soil types. This study consisted of six combinations of treatments namely controls (B0C1 and B0C2), treatment of dolomite, biochar, and compost (B1C1 and B1C2), and treatment of dolomite and NPK (B2C1 and B2C2) that planted randomized and rows Trees species were used in this research were Paraserianthes falcataria, Anthocephalus cadamba, Acacia mangium, and Campnosperma auriculata. Soil samples were also collected for analysis of soil physical and chemical properties on laboratory. This study showed that fertilization treatment significantly affected the increase of height and diameter of four trees species, while planting techniques (randomized and rows) did not significantly affected the increase of height and diameter of four trees species. Dolomite, biochar, and compost application significantly affected the increase of height and diameter of four trees species that planted randomized and rows (B1C1 and B1C2) in Podsol soil. Besides that, NPK and dolomite application significantly affected the increase of height and diameter of four trees species planted by randomized and rows (B2C1 and B2C2) in Acrisol soil. The fastest growth rate was A. mangium followed by P. falcataria, A. cadamba, and C. auriculata on Podsol and Acrisol soil. Based on the observations, P. falcataria, A. cadamba, A. mangium, and C. auriculata are recommended to be planted on both types of soil. Keywords: forestry plants, growth respon, Gunung Mas Regency, land rehabilitation, soil types

PENGARUH TEKNIK PEMBENIHAN LANGSUNG DAN PENYIANGAN TERHADAP PERTUMBUHAN AWAL MERBAU (Intsia bijuga OK.) Faisal Danu Tuheteru; Irdika Mansur; Cahyo Wibowo
Jurnal Penelitian Hutan dan Konservasi Alam Vol 8, No 3 (2011): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphka.2011.8.3.227-236

Teknik pembenihan langsung merupakan salah satu metode alternatif untuk mendukung reforestasi dan rehabilitasi hutan dan lahan di daerah tropika. Penelitian ini bertujuan untuk mengetahui pengaruh metode penaburan (pembenaman) benih dan gulma terhadap pertumbuhan tanaman merbau (Intsia bijuga OK.). Penelitian ini dilaksanakan di kebun percobaan Cikabayan Fakultas Pertanian Institut Pertanian Bogor yang berlangsung mulai bulan November 2008 hingga Februari 2009. Hasil penelitian menunjukkan bahwa metode benih dibenamkan berpengaruh nyata terhadap parameter pertumbuhan tanaman. Metode benih dibenamkan dapat meningkatkan tinggi (28,44 cm), daya berkecambah (95%), laju perkecambahan (12,21 hari), persen jadi benih (89,67%) dan penyerapan unsur hara N dan P dibanding dengan metode benih ditutup mulsa. Metode benih ditutup mulsa dan tidak ada penyiangan menghasilkan berat kering akar yang rendah (0,8 g).

PENGARUH INTERNALISASI NILAI DALAM KONSEP HIERARKIAL PANCASILA TERHADAP SIKAP NASIONALISME PESERTA DIDIK Cahyo Wibowo; Berchah Pitoewas; Yunisca Nurmalisa
Jurnal Kultur Demokrasi Vol 3, No 7 (2015): JURNAL KULTUR DEMOKRASI
Publisher : FKIP Unila

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The purpose of this research was to explain the influence of values internalitation in hierarchial concept of Pancasila towards nasionalism attitude of SMP Negeri 2 Talangpadang students in academic year 2014/2015. This research used descriptive method. The sample of this research were 21 respondents. The data analysis used chi quadrate and it also used questionnaire, interview, observation as data collecting technique and supporting technique of this research was documentation technique. The result of this research showed that there was a positive influence or significance between values internalitation in hierarchial concept of Pancasila towards nasionalism attitude of students.Tujuan dari peneltian ini adalah menjelaskan pengaruh internalisasi nilai Pancasila dalam konsep hierarkial Pancasila terhadap sikap Nasionalisme peserta didik di SMP Negeri 2 Talangpadang tahun 2014/2015. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian deskriptif. Sampel dalam penelitian ini sebanyak 21 responden. Analisis data menggunakan Chi Kuadrat dan teknik pengumpulan data menggunakan angket wawancara, observasi dan teknik penunjang dalam penelitian ini adalah teknik dokumentasi. Hasil penelitian ini menunjukkan bahwa terdapat pengaruh yang tinggi atau kuat antara Internalisasi Nilai dalam Konsep Hierarkial Pancasila terhadap Sikap Nasionalisme peserta didik.Kata kunci: hierarki, internalisasi, pancasila, sikap

IMPLEMENTASI MATERIAL TITANIUM PADA SEPEDA LISTRIK SEBAGAI RANGKA YANG EFISIEN Cahyo Wibowo; Fathan Mubina Dewadi; Abduh Al-Afgani
Jurnal Teknik Mesin Mechanical Xplore Vol 2 No 1 (2021): Jurnal Teknik Mesin Mechanical Xplore
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Titanium memiliki sifat yang baik dalam menahan korosi. Selain menahan karat, sifat titanium ini cukup lentur hingga mampu menahan benturan dari permukaan yang bergelombang sehingga jadi kenyamanan sendiri bagisi pengendara sepeda. Berbeda dengan material besi, pada material besi rentan korosi. Penelitian ini merupakan jenis penelitian kuantitatif dengan metode komparatif, penelitian komparatif bertujuan untuk membandingkan antar 2 penelitian yaitu penelitian sebelumnya dengan penelitian yang sedang dijalankan. Dari hasil penelitian yang telah dilakukan, maka didapatkan beberapa kesimpulan, antara lain material titanium memiliki massa jenis yang lebih kecil daripada material HK-40 yang digunakan pada penelitian sebelumnya, material titanium memiliki massa frame yang lebih kecil daripada material HK-40 yang digunakan pada penelitian sebelumnya, daya yang terbuang pada material titanium tidak sebesar pada material HK-40.Kata kunci: Titanium, Material, EfisienTitanium has good properties in resisting corrosion. In addition to resisting rust, this titanium sulfate is flexible enough to be able to withstand surfaces that create a ride to create its own comfort for the bike. Unlike iron material, iron material is susceptible to corrosion. This research is a type of quantitative research with a comparative method, comparative research aims to compare two previous studies with the current research. From the results of the research that has been carried out, several conclusions were obtained, including the density of titanium material which is smaller than the HK-40 material used in previous studies, titanium material has a smaller frame mass than the HK-40 material used in the study. Previously, the power wasted on titanium material was not as big as on HK-40 material.Keywords: Titanium, Material, Efficient

KOMUNIKASI EFEKTIF PIMPINAN DALAM MENGATASI KONFLIK ORGANISASI Eti Sri Nurhayati; Aminah Swarnawati; Cahyo Wibowo; Eka Indri Widarti; Ahmad Thufail; Inasa Ori Sativa
Metacommunication Journal of Communication Studies
Publisher : Universitas Lambung Mangkurat

The purpose of this research is to describe the effective communication performed by the leader in overcoming organizational conflicts at the Assistant Deputy for Policy Formulation for the Fulfillment of Children's Rights, the Ministry of Women Empowerment and Child Protection using the REACH Principle (Respect, Empathy, Audible, Clarity, Humble). The research uses a descriptive qualitative approach with a case study method. Data collection techniques were carried out through semi-structured interviews, observation and documentation. There were 4 informants, who were selected through purposive sampling and snowball sampling. The results showed that the communication used by the leadership using REACH principle was quite effective in overcoming organizational conflicts. Respect, leaders always listen to input, suggestions, opinions, complaints, stories, problems from all teams and open themselves to criticism and input. Empathy, the leader has a good enough sense of empathy so that it creates openness, and trust and seeks joint solutions if there is a conflict in the team. Audible, the leadership is considered quite clear in providing information and directions. Clarity, Leaders use the media for face-to-face meetings and zoom meetings during the Covid-19 Pandemic, and Whatsapp Group or private chat and telephone so that communication is clear and does not cause misunderstanding. Humble, the leader is very open and listens to all suggestions and input from team members and builds two-way communication to create a conducive work environment.

Co-Authors Abduh Al-Afgani Ahmad Thufail Aminah Swarnawati Arin Annisa Fathia Berchah Pitoewas Eka Indri Widarti Eti Sri Nurhayati Faisal Danu Tuheteru Fathan Mubina Dewadi I Istomo Inasa Ori Sativa Irdika Mansur Iwan Hilwan Juang Rata Matangaran Nurul Hidayati Ujang Suwarna Yunisca Nurmalisa

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