Article Per Year (5 Year)
p-Index From 2020 - 2025
4.434
P-Index
This Author published in this journals
All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pengabdian Magister Pendidikan IPA PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pemberdayaan Masyarakat Universitas Al Azhar Indonesia Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal Abdi: Media Pengabdian Kepada Masyarakat Jurnal Abdi Insani Jurnal Abdidas Journal of Applied Agricultural Science and Technology Indonesian Journal of Fundamental Sciences Biosaintifika: Journal of Biology & Biology Education
Alfarisy, Fariz Kustiawan
Natural Resources And Environmental Science, Plant Protection, University Of Jember
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 29 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 29 Documents
Search

 1   2   3 
The spesies diversity of arthropods in surjan and conventional farming systems in the Special Region of Yogyakarta Wagiyana, Wagiyana; Alfarisy, Fariz Kustiawan; Suharto, Suharto; Habriantono, Bakhroini; Khozin, Mohammad Nur; Suandana, Febery Hery
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 25 No. 1 (2025): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.1251-8

Abstract

An ecosystem is the relationship between insects and the environment in carrying out life processes. The majority of insects are herbivores, and plants serve as their main hosts. Plants also secrete hormone compounds that are favored by arthropods as both a food source and a host for survive. Based on their nature, arthropods are divided into pests and natural enemies. The surjan system is one of the agroecosystem modifications for sustainable agriculture. The study aimed to assess arthropod spesies diversity in different cropping systems. Monitoring was conducted on surjan and conventional land, using several types of traps, including pitfall traps, yellow traps, and pheromone traps. The diversity of arthropods in an ecosystem serves as an indicator of environmental health. This research provides recommendation for managing arthropods, whether as pests or natural enemies. The highest diversity index value was found in the conventional system, with the Shannon_H’ value of of 1.57 for trapping 1, 1.27 for trapping 2, 2.06 for trapping 3, and 1.20 for trapping 4. The species diversity (H’ > 1) value was classified in the medium category. The results of morphological identification revealed two species with the highest abundance: Bactrocera sp. and Atherigona sp. The effectiveness of yellow traps was higher compared to other types of trap, capturing a total of 280 species of pests.
Program Konservasi Penanaman 1000 Pohon Berbasis Masyarakat di Wilayah Hulu DAS Bedadung Jember: Conservation Program for Planting 1000 Tress Based on Society in the Upstream Area of the Bedadung Jember Watershed Habriantono, Bakhroini; Alfarisy, Fariz Kustiawan; Suharto, Suharto; Wagiyana, Wagiyana; Nurcahyanti, Suhartiningsih Dwi; Masnilah, Rachmi; Hoesain, Mohammad; Nusantara, Alrio Putra; Hakim, Tiara Oktavia Putri; Lestari, Resti Putri; Risqianti, Riza; Fa'ayunina, Miftakhul; Merina, Gusna; Ramadhani, Farchan Mushaf Al; Putra, Dimas Ganda Permana
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 9 No. 11 (2024): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v9i11.7794

Abstract

Environmental degradation in the Bedadung Watershed (DAS) in Jember has led to natural disasters such as floods and landslides. A conservation effort through a program of planting 1,000 trees in the upstream area of the watershed was initiated to restore environmental health and improve the welfare of the local community. This program was conducted over nine months in Sucopangepok Village, coordinating with local authorities and residents. The tree seedlings, including Teak, Coffee, Sengon, and Soursop, were provided by BPDASHL Brantas Sampean Jember. Planting was done in vacant land using technical, social, and focus group discussion (FGD) approaches. Active community participation was evident in the planting and maintenance of the trees. The outreach and discussions increased awareness about the importance of conservation and disaster mitigation. Planting economically valuable trees is expected to provide long-term benefits for the environment and the community’s economy. The program results showed a reduction in natural disaster risks and an increase in community awareness and participation. Support from the government, private sector, and non-governmental organizations is crucial to ensure the success and sustainability of this conservation program.
Diseminasi teknologi inovasi bioreaktor termodifikasi untuk perbanyakan bibit anggrek secara klonal di DD Orchid Nursery , Batu, Jawa Timur Restanto, Didik Pudji; Widuri, Laily Ilman; Kuswandi, Bambang; Alfarisy, Fariz Kustiawan; Nurhasna, Rifqi; Firdauzi, Sandy Al
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 4 (2024): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i4.26842

Abstract

Abstrak DD Orchid Nursery  merupakan salah satu nursery anggrek besar yang berlokasi di Desa Dadaprejo, Kecamatan Junrejo, Kota Batu-Malang. Produk anggrek dari DD Orchid Nursery  telah dikenal luas oleh masyarakat pecinta anggrek di Indonesia bahkan hingga internasional. Tingginya permintaan masyarakat terhadap tanaman hias anggrek yang memiliki karakter sama dengan induk perlu diimbangi dengan penerapan teknologi produksi terutama untuk perbanyakan anggrek klonal. Tujuan dari kegiatan pengabdian ini adalah untuk mendiseminasikan teknologi inovasi bioreaktor termodifikasi dengan sistem kincir sederhana guna meningkatkan produksi perbanyakan anggrek secara klonal kepada masyarakat sekitar dan petani plasma DD Orchid Nursery. Sasaran kegiatan pengabdian masyarakat di tempat mitra DD Orchid Nursery  yakni karyawan bagian produksi laboratorium yang memegang kendali terhadap kualitas bibit yang dihasilkan. Metode pelaksanaan pengabdian berupa sosialiasi transfer teknologi bioreactor dan diseminasi dan praktik uji teknologi bioreactor. Hasil kegiatan pengabdian yang telah dilakukan yakni adanya peningkatan transfer of knowledge dan transfer of skill yang diberikan oleh tim kepada masyarakat maupun petani plasma. Selain bertujuan untuk mengenalkan inovasi bioreaktor termodifikasi dan memberikan materi serta cara kerja bioreact, kegiatan ini juga diharapkan bisa memberikan sebuah inovasi baru kepada DD Orchid Nursery  berupa bioreaktor yang telah dimodifikasi dengan harapan nantinya nursery ini dapat mengembangkan teknologi tersebut agar dapat memenuhi kebutuhan konsumen dan bisa memproduksi anggrek klonal secara masal.Kata kunci: anggrek; bioreaktor termodifikasi; klonal; PLB (Protocorm Like Body)  Abstract DD Orchid Nursery is one of the big orchid nurseries located in Dadaprejo Village, Junrejo District, Batu City-Malang. Orchid products of DD Orchid Nursery have been popular in the national and international orchid communities. The high demand of identic orchid production in the market requires the implementation of technology to produce orchid seedlings using clonal propagation. This activity aimed to disseminate innovation of modified bioreactor technology using a simple pinwheel to increase clonal production of orchids for plasma farmers of DD Orchid and society. The target of community service activities at the DD Orchid Nursery partner site were employees of the laboratory production department who control the quality of the seedlings produced. Methods used in this activity were the socialization of bioreactor technology transfer and dissemination of bioreactor technology testing. The results of this activity contributed to the increased transfer of knowledge and skills for plasma farmers and society. In addition, this activity was conducted to introduce detailed information about modified bioreactor innovations, materials, and how bioreactors work. This activity was expected to provide DD Orchid Nursery and society innovation in orchid production. DD Orchid Nursery could increase orchid clonal seedling production to fulfill consumer demand by implementing this innovation. Keywords: orchid; modified bioreactor; clonal; PLB (Protocorm Like Body)
The Effect of Pesticide Residues on Environmental Quality in the Kromong II Watershed, Pacet District, Mojokerto Regency Putra, Dimas Ganda Permana; Fitriyani, Zenita Afifah; Ardiyanto, Fahrur Rijal; Dewi, Yuni Rosita; Khusumawati, Titik; Alfarisy, Fariz Kustiawan; Novita, Mega Darmi; Soesanto, Soesanto
Journal of Applied Agricultural Science and Technology Vol. 9 No. 2 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i2.348

Abstract

The river basin serves multiple ecological and socio-economic functions for the local community, particularly the Kromong II Watershed in Pacet District. A major issue in the upstream area of the watershed is the use of pesticides by local residents in agricultural land management. Excessive pesticide use leads to significant environmental residue accumulation. This study aimed to assess pesticide residue levels, evaluate the quality of irrigation water and soil fertility in rice fields, and map polluted locations using the ArcGIS 10.3 remote sensing application. The analysis was conducted at three designated research sites: Stations I, II, and III. Biochemical Oxygen Demand (BOD) was analyzed using the SNI 6989.72:2009 standard, while Chemical Oxygen Demand (COD) was measured following the SNI 6989.2029 method at the Mojokerto Regency Environmental Agency (DLH) Laboratory. Soil organic carbon (C-organic) was analyzed using the IKP-208 Organic Carbon Test, and total nitrogen (Total N) was determined through spectrophotometric analysis at the PT Graha Mutu Persada Laboratory. Metomil was analyzed using the Liquid Chromatography–Mass Spectrometry (LC-MS) method, while Profenofos was analyzed using Gas Chromatography–Mass Spectrometry (GC-MS). The study found that the highest levels of BOD and COD were recorded at Station III, with values of 11.4 mg/L and 28.6 mg/L, respectively. The highest total nitrogen (Total N) concentration was observed at Station I, measuring 0.14%, while the highest soil organic carbon (C-organic) content was found at Station III, at 7.87%. The LC-MS analysis of methomyl residues showed the highest concentration at Station III, with a value of 0.002 mg/L in irrigation water samples. Similarly, the GC-MS analysis of Profenofos residues indicated the highest concentration at Station II, measuring 8.25 ml/L. Based on these findings, it can be concluded that pesticide residue pollution, particularly from Profenofos, is most severe in the irrigation channel at Station II.
PENGUATAN DAN PEMBINAAN KELURAHAN KRANJINGAN MELALUI TEKNIK IMPLEMENTASI PERTANIAN RAMAH LINGKUNGAN DENGAN AGENS PENGENDALI HAYATI UNTUK MENDUKUNG SISTEM PERTANIAN BERKELANJUTAN Wagiyana, Wagiyana; Suharto, Suharto; Nurcahyanti, Suhartiningsih Dwi; Alfarisy, Fariz Kustiawan; Habriantono, Bakhroini; Merina, Gusna; Arifah, Rifqi Tsalis; Prayoga, Gigi Hadi; Ramadhani, Farchan Mushaf Al
Jurnal Abdi Insani Vol 12 No 3 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i3.2452

Abstract

Kelurahan Kranjingan memiliki kawasan area pertanian terluas di Kecamatan Sumbersari yang mayoritas masih memiliki sawah dan hamparan pertanian yang luas dengan komoditas utama yaitu tanaman pangan seperti padi dan jagung. Namun saat ini, petani mengalami kendala yaitu serangan OPT (hama dan penyakit). Pupuk dan pestisida sintetis saat ini menjadi andalan utama petani untuk bercocok tanam pangan seperti padi dan jagung. Tujuan dari pengabdian ini adalah mengawali petani untuk menerapkan sistem pertanian ramah lingkungan dengan Agens Pengendali Hayati (APH) formula padat dan cair dengan entomopatogen (Beauveria bassiana dan Metharizium anisopliae) serta aplikasinya pada tanaman padi dan jagung serta lahan untuk mendukung sistem pertanian berkelanjutan. Metode pelaksanaan kegiatan ini terbagi menjadi dua yaitu penyuluhan dan praktek langsung pada petani. Penyuluhan dilakukan oleh tim pengabdian mengenai potensi dan manfaat mengenai APH. Untuk praktik dilakukan di lokasi mitra yaitu Kelompok Tani Gemahripah Kranjingan, Kabupaten Jember. Hasil pengabdian menunjukkan bahwa mayoritas petani tertarik dan memiliki motivasi untuk mengembangkan APH. Selain itu petani juga diberikan pembekalan untuk teknik aplikasi dan kalibrasi pada lahan padi sawah. Manfaat pengabdian ini adalah dapat meningkatkan produksi dan hilirisasi teknologi APH pada petani untuk meningkatkan ketahanan pangan. Pengabdian ini meningkatkan kesadaran petani tentang pentingnya APH ramah lingkungan. Melalui penyuluhan dan praktik, petani memahami manfaat APH, khususnya Beauveria bassiana, yang berpotensi menggantikan pestisida sintetis, mendukung pertanian berkelanjutan, dan menjaga lingkungan.
Pemberdayaan Petani melalui Produksi Mikroorganisme Lokal (MOL) dan Plant Growth Promoting Rhizobacteria (PGPR) untuk Meningkatkan Produktivitas Padi dan Silase di Desa Kemiri, Kabupaten Jember Tanzil, Ahmad Ilham; Muhlison, Wildan; Saputra, Tri Wahyu; Rahayu, Puji; Yulianto, Roni; Anantoro, Tri; Hadi, Yusnan; Alfarisy, Fariz Kustiawan; Pusparani, Syafina; Rachmandhika, Yusuf; Syahputra, Wahyu Nurkholis Hadi
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 9 No 3 (2025): Volume 9 Nomor 3 Tahun 2025
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v9i3.23940

Abstract

Kemiri Village, Panti District, Jember Regency is one of the rice-producing villages but faces the problem of scarcity of subsidized fertilizers and ineffective management of agricultural waste. This needs to be overcome with simple but effective handling. This community service activity aims to empower farmers through the production of Local Microorganisms (MOL) and Plant Growth Promoting Rhizobacteria (PGPR) to increase rice productivity while supporting the potential of livestock in the village. The target partner in this activity is the Sidodadi farmer group consisting of 30 farmers. The implementation method includes training in making MOL and PGPR, applying PGPR to rice plants, and making silage as animal feed. The results of the activity show that the activities carried out related to the use of PGPR can help increase rice growth, improve yields, and reduce dependence on chemical fertilizers. In addition, making silage successfully processes green fodder into quality feed that supports food security for livestock in the village. In the future, this activity is expected to strengthen the sustainability of agricultural and livestock practices in Kemiri Village and improve the economy of farmers.
The Impact of Biopesticide Application on Arthropod Composition in Surjan Cropping System in Kulonprogo Regency, Special Region of Yogyakarta Wagiyana, Wagiyana; Suharto, Suharto; Habriantono, Bakhroini; Nurcahyanti, Suhartiningsih Dwi; Masnilah, Rachmi; Khozin, Mohammad Nur; Merina, Gusna; Ramadhani, Farchan Mushaf Al; Putra, Dimas Ganda Permana; Alfarisy, Fariz Kustiawan
Journal of Applied Agricultural Science and Technology Vol. 9 No. 3 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i3.298

Abstract

Surjan is a specific type of cropping system that is part of a local wisdom practice found in Kulonprogo Regency, Special Region of Yogyakarta. The cropping system employs a polyculture system with a raised-sunken bed configuration. In ancient times, this system was initiated as a conservation initiative in the event of drought. In the context of agroecosystems, defined as the interaction between biotic and abiotic components, arthropods serve as indicators of the biotic components of the agricultural environment. The presence of arthropods is influenced by the use of synthetic pesticides. In response to the use of synthetic pesticides, biopesticides are frequently used as a countermeasure. The present study aims to ascertain the impact of biopesticide applications on the composition of arthropods in agricultural land that utilizes surjan cropping system configuration. This study was conducted on the surjan cropping system in Kulonprogo Regency, which is predominantly characterized by the cultivation of rice and shallots. The biopesticide used in this study was a group of fungi, namely Trichoderma harzianum and Metarhizium anisopliae. These organisms function as bioprotectants and biofertilizers. The findings indicate that surjan cropping system, when accompanied by biopesticide utilization, yield a greater diversity of arthropod species in comparison to surjan cropping system that employs synthetic pesticides. In agricultural land with surjan system configuration and biopesticide applications, certain arthropods function as predators, parasitoids, and bioindicators. The most prevalent arthropod species identified is Verania sp. (Coleoptera; Coccinelidae), with a total of 68 individuals. The present study has yielded findings indicating a correlation between the application of surjan cropping system and the utilization of biopesticides in land cultivated with a specificcrops and the composition of arthropods in the environment.
Biophysical Analysis of the Land Carrying Capacity to Organic Rice Plantations in Jember, East Java, Indonesia Hoesain, Mohammad; Pradana, Ankardiansyah Pandu; Alfarisy, Fariz Kustiawan; Soekarno, Siswoyo; Wahyuningsih, Sri; Al Ramadhani, Farchan Mushaf
AGRIVITA Journal of Agricultural Science Vol 47, No 3 (2025)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v47i3.4583

Abstract

Organic rice is cultivated without synthetic materials, offering high economic value and health benefits. Supportive biophysical components are essential for optimal growth and improving organic rice productivity. This research aims to identify the biophysical components that contribute to the land's carrying capacity for organic rice growth. The research was conducted in Rowosari Village, Jember Regency, East Java. The study analyzed on-farm activities, including producing organic fertilizers and pesticides, land mapping, agroclimate, and assessing biological components. The results show that biophysical factors significantly influence organic rice growth. Indicators of the success of organic fertilizer produced are N of 0.15%, P of 0.04%, K of 0.22%, and fertilizer pH of 4.98. The qualitative analysis of organic pesticides revealed the presence of secondary metabolites like tannin, saponin, flavonoid, alkaloid, and terpenoid with the code (+++). A high biological diversity was observed, with a Shannon-H index exceeding 1. Additionally, the concentration of organic fertilizers and pesticides significantly increased the number of rice plant saplings during the vegetative phase. The study concludes that the biophysical components of the land provide strong support for the growth of organic rice, demonstrating their vital role in the sustainability and productivity of organic farming systems.
Diversifikasi Produk dan Inovasi Kemasan Pupuk Organik Granular dari Limbah Kotoran Kambing untuk Meningkatkan Daya Saing Petani Desa Karangharjo Khozin, Mohammad Nur; Aultavia, Reza Novita; Alfarizi, Zulfikar Ahmad; Soeparjono, Sigit; Habriantono, Bakhroini; Wagiyana; Soeharto; Alfarisy, Fariz Kustiawan; Purnamasari, Listya
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 3 (2025): Juli-September 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i3.12845

Abstract

The problem of fertilizer scarcity and the high cost of chemical fertilizers are major challenges for farmers in Karangharjo Village, Silo District, Jember Regency. This community service program aims to increase the competitiveness of local products through product diversification and packaging innovation of granular organic fertilizer made from goat manure waste with the addition of Trichoderma sp. The implementation method includes socialization and education, discussion forums, granular organic fertilizer product diversification activities, introduction and demonstration of product packaging. The results of the activity show an increase in farmers' knowledge and skills in utilizing livestock waste into quality fertilizer packaged in economical sizes. This innovation not only overcomes fertilizer limitations, but also opens new economic opportunities and strengthens the competitiveness of organic fertilizer products in a sustainable manner. This activity is well received by farmers and is expected to continue.
Co-Authors Ahmad Ilham Tanzil Akhamd Haryono Al Ramadhani, Farchan Mushaf Alfarizi, Zulfikar Ahmad Ali Wafa Anantoro, Tri Ankardiansyah Pandu Pradana Arifah, Rifqi Tsalis Aryo Fajar Sunartomo Aultavia, Reza Novita Bakhroini Habriantono Bakhroini Habriantono Bambang Irawan Bambang Kuswandi Budi, Ival Oktavian Nurtian Dewi, Yuni Rosita Dimas Ganda Permana Putra Evita Soliha Hani Fa'ayunina, Miftakhul Fahrur Rijal Ardiyanto Farchan Mushaf Al Ramadhani Fifteen Aprila Fajrin Firdauzi, Sandy Al Fitriyani, Zenita Afifah Gusna Merina Gusna Merina Gusna Merina, Gusna Habriantono, Bakhroini Hadi Paramu Hadi, Yusnan Hakim, Tiara Oktavia Putri Hari Purnomo Hasjim, Saifuddin Hoesain, Mohammad I Gusti Bagus Wiksuana Idah Andriyani Ika Barokah Suryaningsih Intan Kartika Setywati Ival Oktavian Nurtian Budi Khozin, Mohammad Nur Khusumawati, Titik Laily Ilman Widuri, Laily Ilman Lestari, Resti Putri Listya Purnamasari M. Abd. Nasir Masnillah, Rachmi Nita Kuswardhani novita, mega darmi Nurchayanti, Suhartiningsih Dwi Nurhasna, Rifqi Nusantara, Alrio Putra Prayoga, Gigi Hadi Puji Rahayu Pusparani, Syafina Rachmandhika, Yusuf Rachmi Masnilah Rachmi Masnilah Rachmi Masnillah Ramadhan, Farchan Mushal Al Ramadhani, Farchan Mushaf Al Restanto, Didik Pudji Rismayani Risqianti, Riza Saifuddin Hasjim Samudji Samudji Sari, Dwi Tirta Sigit PRASTOWO Sigit Soeparjono Siswoyo Soekarno Soeharto Soesanto Soesanto Sri Wahyuningsih Sri Wahyuningsih Suandana, Febery Hery Sugeng Winarso Suhartiningsih Dwi Nur Cahyanti Suhartiningsih Dwi Nurcahyanti Suharto Suharto Suharto Suharto Suharto Suharto Syahputra, Wahyu Nurkholis Hadi Tarigan, Sri Ita Tejasari Tejasari Tri Wahyu Saputra Wagiyana Wagiyana Wagiyana Wagiyana Wagiyana, Wagiyana Wildan Muhlison, Wildan Yuli Witono Yulianto, Roni Zidna Nurul Izzatika