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All Journal Economic Journal of Emerging Markets Mitra Sains Agroland : Jurnal Ilmu-Ilmu Pertanian AGROTEKBIS Jurnal Online Mahasiswa (JOM) Bidang Pertanian Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Riau Journal of Computer Science Jurnal Ilmiah Universitas Batanghari Jambi Jurnal CoreIT Jurnal Laut Khatulistiwa JUTEKS - Jurnal Teknik Sipil International Journal of Supply Chain Management Jurnal Informasi dan Komputer Unes Law Review Jurnal Daur Lingkungan Journal of Robotics and Control (JRC) Maspul Journal of Community Empowerment Jurnal Integrasi Kesehatan dan Sains Jurnal Ilmu Komputer Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences JUSTIN (Jurnal Sistem dan Teknologi Informasi)
Muhardi Muhardi
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PERTUMBUHAN BEBERAPA VARIETAS PEPAYA (Carica papaya L.) PADA BERBAGAI JENIS PUPUK Yohanis Tambing; Muhardi Muhardi; Dewa Ariembawa
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 17, No 2 (2010)
Publisher : Universitas Tadulako

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Abstract

The research aimed to identify the growth of some papaya varieties as affected by various fertilizer applications. The research was carried out from November 2008 to March 2009 in "Puspita Karya Karava Tandau" Sidondo of Sigi Regency.  The research used a Split Plot Design.  The main plot was various papaya varieties (V): small local (v1), big local (v2), item (v3), watermelon (v4), Mexico (v5), and Bangkok (v6). The sub plot was fertilizer types (P): control (p0), Saputra Nutrient (p1), NPK (p2), bokashi (p3), Saputra nutrients + NPK (p4), and Saputra nutrient + bokashi (p5). The results of research indicated that only the manure types had significant effect on the growth of papaya.  The mixture of saputra nutrient+bokasi resulted in significantly larger plant stem diameter at 16 months after planting (MAP), height at 18 MAP, and dry weight than any other treatments.
PERTUMBUHAN DAN HASIL BAWANG MERAH (Allium ascalonicum L.) VARIETAS LEMBAH PALU DENGAN PEMBERIAN PUPUK DAN MULSA Rosianti Mokoginta; Muhardi Muhardi; Muhd Nur Sangadji
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 22, No 2 (2015)
Publisher : Universitas Tadulako

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Abstract

This research aimed to study the effect of the combination of inorganic fertilizers, organic fertilizers and rice straw mulch on growth and yield of LembahPalu shallot variety. This study was conducted in farmers’ fields in Makuvillage of Sigi districtin May to July 2013 using a randomized block design (RBD).Treatmentswere a combination of different inorganicfertilizers, organic fertilizers and rice straw mulch consisting of seven treatments (A= onion cultivation methods applied by farmers, B= inorganic fertilizer, C= organic fertilizer, D= inorganic fertilizer + organic fertilizer, E= inorganic fertilizer + rice straw mulch, F= organic fertilizer + rice straw mulch and G= inorganic fertilizer + organic fertilizer + rice straw mulch).Each treatment was replicated infour groups so that there were 28 treatment units. Differences between treatmentswere analyzed using the honest significant (HSD) test at 5% level. The B treatment (inorganic fertilizer) showed better plant growth components while the G treatment (inorganic fertilizer + organic fertilizer + rice straw mulch) had better yield components.Keywords : Anorganic fertilizer, Onion, Organic, Rice Straw Mulch 
PERSEPSI DAN STRATEGI PENGELOLAAN HKM DESA LEBONI KECAMATAN PAMONA PUSELEMBA (STUDI KASUS KPHP, SINTUWU MAROSO KABUPATEN POSO) Krisna, Daniel Surya; Wardah, Wardah; Muhardi, Muhardi
Mitra Sains Vol 7, No 2 (2019)
Publisher : Tadulako University

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The aims of this research are to find out (1) community perception in implementation of social forestry; (2) strategy in social forestry development in Leboni village.  This research was a descriptive study. The respondents determined by using purposive sampling technique. The data were analysed by using descriptive analysis and supported by Likert Scale, SWOT Matrix, Quantitative Strategy Planning Matrix. The resul reveal that the perception about quality value indicator is Good (average score 70,0), emosional value indicator is Good (average score  87,0), fungsional value indicator is Very Good (average score 104,0), and generally perception is Good (average of score total 72,8). Five alternative of strategies that could be applied, they are : (1) develop forest farmer group to be business unit; (2) Implement Good Agriculture Practise; (3) making network with private, local government and local custom institution; (4) increasing regency government support for facilitaties and infrastructure; (5) develop local wisdom technique in forest management. The priority strategy is develop forest farmer group to be business unit (Score 5,7041)
Analisis Perkuatan Cerucuk Kayu Bakau Dan Kayu Mahang Terhadap Peningkatan Daya Dukung Tanah Gambut Saputra, Adetia; Muhardi, Muhardi; Fatnanta, Ferry
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Riau province has a very large peatland. Large peatland is constraint in the development of infrastructure of a region. The problems posed ini the field of contruction is the amount of land degradation and low soil carrying capacity. Therefore, an alternative to the soil reinforcement is required by using the cerucuk timber to increase the carrying capacity of the foundation and soil reinforcement. This research was conducted to determine the carrying capacity of mangrove and mahogany wood as reinforcement on peat soil with laboratory scale modeling. The research was done by applying load tests on those timbers in a testing basin with dimensions of 1,2 m x 1 m x 1 m with variations of single pile, group pile consists of 4 piles, and group pile consists of 9 piles. The used method was alpha method as the reference to determine limit bearing capacity. From the test result of settlement interpretation loading of 25 mm on mangrove, it was obtained that maximum bearing capacity were 16,22 kg and 19,85 kg when the pile was embedded for 1 day and 7 days long. As for the mahang, the maximum bearing capacity were 15,51 kg and 18,47 kg when the pile was embedded for 1 day and 7 days long. According to the results, it could be concluded that mangrove piles had a larger bearing capacity compared to mahang piles.Keywords : mangrove piles, mahang piles, foundation`s bearing capacity, peat.
PERTUMBUHAN STEK TANAMAN LADA (Piper nigrum Linn) PADA KOMPOSISI MEDIA TUMBUH DAN DOSIS AIR KELAPA YANG BERBEDA Aldi, Aldi; Muhardi, Muhardi; Lasmini, Sri Anjar
AGROTEKBIS Vol 5, No 4 (2017)
Publisher : AGROTEKBIS

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Abstract

This experiment aimed to determine the best growing media composition and coconut water in stimulating the growth of pepper plant cuttings. It used a two factorial randomized block design. The first factor was various proportions of media compositions of manure, sand and top soil i.e. 1:4:12; 1:4:6; and 1: 4:4. The second factor was different rates of coconut water i.e. A0           (no coconut water added), A1 (40 cc), A2 (80 cc), and A3 (120 cc). There were 12 combination treatments and each was replicated three times with each treatment consisting of three plants. Parameter observed included shoot length, leaf number, leaf area size, root length, and fresh root weight. The research results showed that there was no significant interaction effect between         the media composition and the coconut water on the shoot length at 45 days after planting (DAP), 60 DAP, and 90 DAP but it was significant at 75 DAP. The interaction effect was also significant on the leaf number at 60 DAP. Only the coconut water had significant effect on the total leaf area size, the root length, and the fresh weight. The stimulation of the pepper cutting growth was best under the 120 cc coconut water treatment per week and the sand, manure and top soil proportion of 1:4:4 treatment. Key Words : Coconut water, pepper cuttings, and planting media
PRODUKSI DAN KUALITAS PRODUKSI BUAH TOMAT YANG DIBERI BERBAGAI KONSENTRASI PUPUK ORGANIK CAIR Wijaya, Agus Sunar; Sangadji, Muhd. Nur; Muhardi, Muhardi
AGROTEKBIS Vol 5, No 1 (2017)
Publisher : AGROTEKBIS

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Abstract

This research consisted of two stages, the first aimed to determine the best type of liquid organic fertilizer which can be used in the fertilization of tomato plants andthe second aimed to determine the best concentration of liquid organic fertilizer which can be applied to tomato plants. This research purpose was to investigate the response of tomato plant (Solanum licopersicum Mill.) as shown byitsyield and quality.  This research used a Randomized Completely Block design in which seventreatmentsof different concentrations and two types of liquid organic fertilizers were applied.  The treatments significantly affected the number of tomato fruits but not on their weight and diameter as well as the content of C vitamin. Best yield and quality of the tomatoes was found in the gremont liquid organic fertilizer at the concentration of 2.4 ml/80 ml water.Keywords: Liquid organic fertilizer, Quality and Yield of tomato.
KARAKTERISTIK BUAH NANGKA (Artocarpus heterophyllus Lamk) SIAP SAJI YANG DIPASARKAN DI KOTA PALU Anggriana, Anna; Muhardi, Muhardi; Rostiati, Rostiati
AGROTEKBIS Vol 5, No 3 (2017)
Publisher : AGROTEKBIS

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Abstract

The purpose of this study was to determine the physical, chemical characteristic and organoleptic of jack fruit fast food which marketed in Palu city. This study used a Randomized Block Design (RBD) consisting of 4 locations selling of jack fruit in Palu city and each locations is represented by 4 seller as a group. So there are 16 experimental units. The parameter consisted of flavor, texture, color, taste, fresh weight of fruit and water content. Analysis of the data using another test, if there are significant differences between the result of the analyze then tested by using advanced testing Honestly Significant Different (HSD) of 5% level. The result showed that location selling of jack fruit influential real toward flavor, texture, color, and taste, but nothing influential real toward fresh eight and water content. Key Words : Characteristic, Jack fruit.
Ketahanan Gambut Terstabilisasi Semen Dan Kapur Terhadap Kebakaran Menggunakan Pendekatan Variasi Kadar Air Juliasman, Rendy Dwi; Muhardi, Muhardi; Wibisono, Gunawan
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

A peatland is an area with naturally accumulated decayed organic materials (peat) at the surface. Riau Province has the largest peatlands in Sumatra i.e. 56.1% from the total peatlands in Sumatra. Peat fires have been many times occurred in Indonesia. Stabilization proven to preverent peat fire in Malaysia. Most common available stabilization materials are cement and lime. Research conducted by Zamzam (2017) showed that peat mixed with 5% lime and 15% cement at 100% moisture content, could increase its strength and became less combustible. This research attempts to correlate the mechanical properties of peat that stabilized with cement and lime at various water contents, and its burning resistance. Several water contents applied were 51.52%, 76.77%, 81.82%, 102.02%, 107.07%, and 112.12%. The burning tests were not conducted on sample of 51,52 % water content. The result showed that the optimum strength of stabilized peat mixtures achieved at water content of 76,77%, which had UCS and soaked CBR value of 97.35 kPa and 16,23%, respectively. The burning test showed that the higher the water content, the delay combustible the peat sample,however the mechanical test and burning tests showed the opposite results.Keywords: peat fire, cement, lime, CBR, and UCS.
Stabilitas Tanah Plastisitas Tinggi Dengan Semen Roni Indra Lesmana; Muhardi Muhardi; Soewignjo Agus Nugroho
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Ground high plasticity have the properties is bad so do not meet the technical requirements desired. The properties owned land in the form of low bearing capacity, compression (compressibility) high, sweilling large, and difficult to carry out the work of compaction, it is necessary for the stabilization of the soil. One of the ways used to solve problems among other things stabilized with cement. The purpose of this study to determine the effect of OPC cement type or PCC at high plasticity ground against the carrying capacity of land, CBR and UCS. Testing was conducted on the physical and mechanical properties of soil, compaction parameters, CBR and UCS. The standard test used is ASTM. Variations cement used is the addition of 6%, 8%, 10% for each OPC cement and PCC. Curing is done before the test CBR and UCS, the curing time for 28 days on the condition of optimum water content. Results from the study showed that the increase in the maximum CBR value occurs in a mixture of 10% which is 139.70% to 116.43% OPC and for PCC. The maximum value of UCS also occur on the addition of cement by 10%. In the cement mixture with OPC, qu max by 1.44 MPa and 2.43 MPa with a mixture of cement PCC.Keywords: curing, high plasticity, stabilization, cement
PENGARUH PEMBERIAN PUPUK ORGANIK CAIR LIDAH BUAYA (Aloe vera) TERHADAP PERTUMBUHAN BIBIT KOPI ROBUSTA (Coffea canephora,Pierre) Yulia, Arnis En; Syafrinal, Syafrinal; Muhardi, Muhardi
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

The objective of this research is to determine the effect of giving Aloe Vera Biofertilizer Liquid and to get the best concentration to increase the growth of Robusta coffee seeds. This research was conducted at experimental station of the Faculty of Agriculture, Riau University. This research was conducted experimentally using a Completely Randomized Design consisting of five treatments and four replications. The treatment in this study was the treatment without Aloe Vera Biofertilizer Liquid, Aloe Vera Biofertilizer Liquid concentration 5 ml.l-1 air, 10 ml.l-1 air, 15 ml.l-1 air and 20 ml.l-1 air. The data obtained were analyzed by variance and tested further with Duncan new range test at the level of 5 %. The observed parameters were increase in plant height (cm), increase in stem base circumference (cm), increase in number of leaves (strands) and leaf area (cm2). The results showed that the application of Aloe Vera Biofertilizer Liquid with a concentration of 20 ml.l-1 air is the best concentration in increasing the growth of Robusta coffee seeds. Keywords :Coffee Seed, Aloe Vera Biofertilizer
Co-Authors Abd. Hadid Abubakar M. Lajhie Aisyah Putri Aldi, Aldi Alex Kurniawandy Amiruddin Sahabu Anggriana, Anna Anita Febriani Annesia Malantiyaz Arnis En Yulia Benni Harianto Naibaho Charles AN Christoporus, Christoporus D Gandana Madjakusumah Dance Tangkesalu Darsin Darsin Dedy Yasriady Devi Melisa Veronica Dewa Ariembawa Diandra, Roni Dodi Pratama Effendy Effendy Efrian Saputra Ellia Marlina Fadlan Fadlan Fajrian Saddek Ferry Fatnanta Fonda, Hendry Galang Maulana Gunawan Wibisono Hadiyan Putra, Hadiyan Hamida, Hayatul Handri Handri Hayatul Hamida Holid Holid Imam Hanafi Indah Fitriana Juliasman, Rendy Dwi Krisna, Daniel Surya Lita Darmayanti M. Fardhal Pratama Made Antara Mahfudz Mahfudz Maman Sutisna Muhammad Basir Cyio Muhammad Hafizh Anwar Muhammad Naufal Rivan Muhammad Rofiq Muhammad Syafnil Ramadhan Muhd Nur Sangadji Muhd. Nur Sangadji Nurchi Syahri Ordila, Rian Parlan, Parlan Prayitno, Dwi Imam puspa ningrum Rahma Silva Anita Ralan Ditra Reynaldi Saputra Ridwan Hamdani Rio Hidayat Rizqi Yuliana Robi Handi Putra Roni Indra Lesmana Rosianti Mokoginta Rostiati Rostiati, Rostiati Rustam Abdul Rauf s, Pirmadona Sabna, Eka Said Defri Ariandi Salsabila Hasanah Sanjaya, Gigih Saputra, Adetia Satibi, Syawal Sentana, Jeri Trio Soewignjo Agus Nugroho Sri Anjar Lasmini Sundaya Sundaya Suryadi Ramadhan Suwarsi, Sri Syafrinal, Syafrinal Syawal Satibi Tabah Miftahudin Toni, Afriwan Wahyuni, Refni Wardah Wardah Warsidah, Warsidah Wijaya, Agus Sunar Winda Sari Yani Oktavia Yohanis Tambing Yuda Irawan Yulia Beikircher Z, Harist Febrie R Zalna, Zalna Zambika, Rio