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All Journal Journal of Tropical Soils Indonesian Journal of Biotechnology Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Jurnal Abdi Insani JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Agroteknologi dan Pertanian (JURAGAN) Agroteksos International Journal of Technology, Food and Agriculture Jurnal Agroteknologi dan Pertanian (JURAGAN)
Dori Kusuma Jaya
Jurusan Ilmu Tanah, Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences

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Sosialisasi dan Bimtek Pembuatan Biosaka untuk Tanaman Pakcoy di Dusun Montong Lauq, Desa Selat, Narmada Azizah, Isnaniar Rahmatul; Susilowati, Lolita Endang; Arifin, Zaenal; Jaya, Dori Kusuma
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 9 No. 4 (2024): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v9i4.2221

Abstract

Desa Selat adalah salah satu desa utama penghasil beras di Kecamatan Narmada menghadapi berbagai tantangan seperti produktivitas tanaman dan ketergantungan pada pupuk kimia. Kegiatan Pengabdian Kepada Masyarakat (PkM) memperkenalkan Biosaka sebagai inovasi berbasis bahan baku lokal untuk meningkatkan pertumbuhan dan hasil panen tanaman bagi petani di Dusun Montong Lauq, Desa Selat, Kecamatan Narmada. Metode pengumpulan data melibatkan wawancara partisipatif dan observasi langsung di lapangan. Pelatihan mencakup diskusi kelompok, praktek pembuatan Biosaka, dan evaluasi. Kegiatan ini melibatkan 23 anggota kelompok tani “Pamansam” Dusun Montong Lauq. Hasil kegiatan menunjukkan bahwa sebelum pelatihan, 47% petani memiliki pemahaman sangat rendah tentang Biosaka, dan hanya 3% yang sangat baik. Setelah pelatihan, hasil post-test menunjukkan 36% petani kini memahami Biosaka dengan sangat baik, 37% baik, dan hanya 9% yang tetap pada pemahaman rendah. Peningkatan ini menunjukkan keberhasilan kegiatan PkM dalam meningkatkan pengetahuan petani.  Socialization and Training on Biosaka Production for Pakcoy Plants in Montong Lauq, Selat Village, Narmada Abstract Selat Village is one of the primary rice-producing villages in the Narmada District, facing various challenges such as crop productivity and reliance on chemical fertilizers. The Community Service Program (PkM) introduced Biosaka as an innovation based on local raw materials to enhance plant growth and yields for farmers in Montong Lauq Hamlet, Selat Village, Narmada District. Data collection methods included participatory interviews and direct field observations. The training comprised group discussions, practical Biosaka production, and evaluations, involving 23 members of the "Pamansam" farmer group. Results indicated that prior to training, 47% of farmers had a very low understanding of Biosaka, with only 3% demonstrating a very good understanding. Post-training, the results showed that 36% of farmers now understood Biosaka very well, 37% well, and only 9% remained at a low understanding level. This improvement demonstrates the success of the PkM program in enhancing farmers' knowledge.
Selective abiotic and biotic stressors influence the acdS gene abundance in the rhizospheric soil of pineapple plants in Lampung, Indonesia Jaya, Dori Kusuma; Giyanto, Giyanto; Nurhidayat, Novik; Antonius, Sarjiya
JOURNAL OF TROPICAL SOILS Vol 29, No 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.149-157

Abstract

Indonesia has faced extensive poor soil quality and health for years.Anthropogenic, climatic, and plant pathogenic activities are the major contributing factors that degrade the soil's essential life-supporting system, such as the functional gene pool. One such gene is the rhizobacterial acdS, which codes for synthesizing the ACC (1-aminocyclopropane-1-carboxylate) deaminase that cleaves ACC as an ethylene hormone precursor in the stressed plant growing under stressful conditions. This study aims to investigate the abundance of the acdS gene in different abiotic and biotic stressors of the rhizospheric soil of pineapple plantation area that has been exposed incidentally to herbicides, flooding, and pathogenic Phytophthora spp infections. Soil samples were collected by using simple randomized sampling. A quantitative real-time polymerase chain reaction (qPCR)-based method was applied to assess the gene abundance. This study reveals that the abundance of acdS in the rhizospheric soil of herbicide-treated and Phytophthora-infected symptomatic plants is relatively lower than that of non-treated ones. The highest abundance was found in the Phytophthora-infected soil of asymptomatic plants. However, there was no significant difference in abundance between the fflooded rhizospheric soil TO rhizospheric soil of flooded-exposed plants and the non-exposed ones. Hopefully, this data will help us better understand proper land-use management practices for pineapple plants.
POPULASI BAKTERI PENAMBAT N, N TOTAL, DAN SERAPAN N TANAMAN JAGUNG DI BAWAH PERLAKUAN VARIASI IRIGASI DAN JENIS BAHAN ORGANIK Apriani, Nita; Susilowati, Lolita Endang; Jaya, Dori Kusuma; Suriadi, Ahmad
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 34 No 3 (2024): Jurnal Agroteksos Desember 2024
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v34i3.1141

Abstract

Tujuan penelitian ini adalah untuk mengetahui populasi bakteri N, N total tanah, dan serapan N pada tanaman jagung akibat pemberian volume persentase irigasi berbeda dengan menggunakan sistem irigasi tetes dan beberapa jenis bahan organik. Penelitian ini menggunakan rancangan split plot dengan petak utama adalah persentase pemberian air irgasi berdasarkan kebutuhan air tanaman dan anak petak adalah jenis bahan organik. Pada petak utama terdapat faktor perlakuan I1 (irigasi 100%), I2 (irigasi 80%), dan I3 (irigasi 60%). Sedangkan pada anak petak terdapat faktor perlakuan B0 (tanpa bahan organik), B1 (10 ton/ha pupuk kandang ), B2 (10 ton/ha biochar), B3 (5 ton/ha biochar + 5 ton/ha vermikompos). Berdasarkan faktor-faktor tersebut, diperoleh petak percobaan dari kombinasi antara petak utama dan anak petak yang menghasilkan 12 unit dengan 3 ulangan. Hasil penelitian menunjukkan interaksi antara variasi irigasi dan jenis bahan organik hanya mempengaruhi populasi bakteri penambat N dengan populasi tertinggi sebanyak 124,3 x 105 CFU/g pada perlakuan I1B1 (irigasi 100% dengan 10 ton/ha pupuk kandang). Sedangkan secara mandiri, variasi irigasi dan jenis bahan organik masing-masing mempengaruhi populasi bakteri penambat N, N total tanah, dan serapan N tanaman.
Makrofauna Permukaan Tanah Di Bawah Satuan Pohon Campuran Alpukat, Kakao, dan Kopi Di Desa Senaru Lombok Utara Adinda Utami, Annisa; Susilowati, Lolita Endang; Jaya, Dori Kusuma; Azizah, Isnaniar Rahmatul
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.659

Abstract

The presence of soil macrofauna can serve as an indicator of land quality changes, as high macrofaunal diversity generally reflects a healthier ecosystem. This study aims to assess soil macrofauna diversity in agroforestry land in Senaru Village, North Lombok, to provide an overview of soil ecosystem conditions in the area. The research was conducted in the Special Purpose Forest Area of Senaru Village on mixed tree stands of avocado, cacao, and coffee, from October to September 2023. The study employed a descriptive-quantitative method using the pitfall trap technique to collect macrofauna. Data were analyzed using Margalef’s species richness index (R), Shannon-Wiener diversity index (H’), and Pielou’s evenness index (E’).  The results indicate that the soil is slightly acidic (pH 6.4), with a moderate organic carbon content (2.45%) and adequate moisture levels (57%). High soil temperature (35°C) contributes to increased organic matter decomposition, while a litter layer thickness of 6.5 cm helps maintain soil moisture. Macrofauna diversity was classified as moderate, dominated by the phylum Arthropoda, particularly the family Formicidae (134 individuals). The families Rhoppalidae (Hemiptera) and Isotomidae (Collembola) were also abundant. Species richness indices showed that coffee and cacao stands had moderate species richness, whereas avocado had lower values. Macrofauna evenness was uneven, with the highest distribution in coffee stands (47%) and the lowest in avocado (34%). These findings suggest that the agroforestry land in Senaru Village still supports soil macrofaunal diversity, with tree species variations influencing species distribution and richness.
Isolation of Cellulolytic Bacteria from Oyster Mushroom Baglog Compost Kurnia, Sandra Cahya; Lolita Endang Susilowati; Jaya, Dori Kusuma
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7770

Abstract

Oyster mushroom baglog compost is an organic waste rich in cellulose, making it a potential source for the isolation of cellulolytic bacteria. This research aims to isolate cellulolytic bacteria that function as decomposers in Baglog compost. Oyster mushroom baglog compost was used as a substrate, and bacteria were isolated using Nutrient Agar (NA) media and Carboxymethyl Cellulose (CMC) media. Qualitative testing method was done with congo red test. The results of the study successfully characterized 3 (three) potential cellulolytic bacterial isolates characterized by a cellulolytic index of more than 1 (1-1.75) and have the following characteristics: one isolate is milky white with a large round shape, one isolate is white with a large choppy shape, and one isolate is yellow with a medium round shape. These findings indicate that the three isolates have potential as cellulose decomposers and can be utilized in organic waste treatment applications or compost production.
SOSIALISASI PENGELOLAAN LIMBAH RUMAH TANGGA DALAM MENCEGAH PENCEMARAN LINGKUNGAN DAN GLOBAL WARMING DI SMA NEGERI 1 NARMADA, KABUPATEN LOMBOK BARAT Susilowati, Lolita Endang; Markum, Markum; Wahyuningsih, Endah; Jaya, Dori Kusuma; Gigentika, Soraya
Jurnal Abdi Insani Vol 12 No 1 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i1.2194

Abstract

Improper household waste management can cause environmental pollution and contribute to global warming. Therefore, there is a need for community service activities to provide education on household waste management to the students of SMA Negeri 1 Narmada. The goal of this community service activity is to increase the understanding and awareness of SMA Negeri 1 Narmada students regarding the importance of practical steps in household waste management to prevent environmental pollution and mitigate the impacts of global warming. This activity is carried out through outreach using expository methods, participatory methods, and formative evaluation, where students are introduced to the concepts of 3R (reduce, reuse, recycle) and the zero waste movement. The results of the activity show an increase in students' knowledge of the types of household waste and their negative impacts, as well as a better understanding of how to manage waste effectively. This outreach also resulted in positive changes in students' habits, such as separating organic and inorganic waste, using recyclable products, and reducing the use of single-use plastics. The conclusion of this activity is that household waste management outreach has proven effective in raising environmental awareness and can serve as a starting point for creating sustainable behavioral change. It is recommended that similar activities be held regularly and accompanied by collaboration between schools, communities, and the government to strengthen waste management efforts and global warming mitigation in a broader and more integrated manner.
Selective abiotic and biotic stressors influence the acdS gene abundance in the rhizospheric soil of pineapple plants in Lampung, Indonesia Jaya, Dori Kusuma; Giyanto, Giyanto; Nurhidayat, Novik; Antonius, Sarjiya
JOURNAL OF TROPICAL SOILS Vol. 29 No. 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.149-157

Abstract

Indonesia has faced extensive poor soil quality and health for years.Anthropogenic, climatic, and plant pathogenic activities are the major contributing factors that degrade the soil's essential life-supporting system, such as the functional gene pool. One such gene is the rhizobacterial acdS, which codes for synthesizing the ACC (1-aminocyclopropane-1-carboxylate) deaminase that cleaves ACC as an ethylene hormone precursor in the stressed plant growing under stressful conditions. This study aims to investigate the abundance of the acdS gene in different abiotic and biotic stressors of the rhizospheric soil of pineapple plantation area that has been exposed incidentally to herbicides, flooding, and pathogenic Phytophthora spp infections. Soil samples were collected by using simple randomized sampling. A quantitative real-time polymerase chain reaction (qPCR)-based method was applied to assess the gene abundance. This study reveals that the abundance of acdS in the rhizospheric soil of herbicide-treated and Phytophthora-infected symptomatic plants is relatively lower than that of non-treated ones. The highest abundance was found in the Phytophthora-infected soil of asymptomatic plants. However, there was no significant difference in abundance between the fflooded rhizospheric soil TO rhizospheric soil of flooded-exposed plants and the non-exposed ones. Hopefully, this data will help us better understand proper land-use management practices for pineapple plants.
INTRODUKSI VARIETAS PADI BIOSALIN SEBAGAI ALTERNATIF ADAPTIF PADA LAHAN TERDAMPAK SALINITAS DI KECAMATAN SEKOTONG Susilowati, Lolita Endang; Jaya, Dori Kusuma; Azizah, Isnaniar Rahmatul
Jurnal Abdi Insani Vol 12 No 7 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i7.2553

Abstract

Lahan salin di Indonesia mengalami peningkatan luas akibat intrusi air laut yang dipicu oleh perubahan iklim global. Di Kecamatan Sekotong, Kabupaten Lombok Barat, lahan pertanian menghadapi permasalahan salinitas sedang (2–4 dS/m) yang berdampak pada penurunan produktivitas. Penggunaan pupuk kimia berlebihan serta keterbatasan pengetahuan petani terhadap varietas padi tahan salin memperburuk kondisi ini. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kapasitas petani dalam menghadapi salinitas melalui pelatihan budidaya padi varietas Biosalin yang adaptif terhadap kondisi salin. Kegiatan dilaksanakan pada tanggal 28 Januari 2025 di Desa Persiapan Belongas, dengan melibatkan 17 peserta dari unsur petani, aparat desa, dan masyarakat setempat. Metode yang digunakan meliputi observasi awal, sosialisasi, penyuluhan materi varietas Biosalin, diskusi kelompok, serta pembagian benih untuk uji coba. Hasil kegiatan menunjukkan peningkatan pemahaman petani terhadap teknologi budidaya padi tahan salin, meningkatnya antusiasme terhadap penggunaan varietas Biosalin, serta munculnya inisiatif masyarakat untuk melanjutkan uji coba secara mandiri. Kegiatan ini berhasil memberikan solusi adaptif yang aplikatif dalam pemanfaatan lahan salin secara produktif dan diharapkan dapat mendorong adopsi berkelanjutan oleh petani di wilayah pesisir.
Effect of Biochar and Various Organic Fertilizer Combinations on Growth, Yield of Mustard Green (Brassica juncea L.), and Soil Chemical Properties of Inceptisol Alfitriani, Pipi; Mulyati, Mulyati; Jaya, Dori Kusuma
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.10073

Abstract

Mustard green (Brassica juncea L.) is one of the important leafy vegetables cultivated in tropical regions, yet its productivity is often constrained by the low fertility of Inceptisol soils. The application of organic amendments such as biochar and various animal manures has been widely reported to improve soil fertility and plant performance. Therefore, this study aimed to evaluate the effect of biochar combined with different types and dosages of organic fertilizers on the growth, yield of mustard green (Brassica juncea L.), and the chemical properties of Inceptisol soil. The experiment was conducted using a Completely Randomized Design (CRD) with seven treatments and three replications, resulting in 21 pots. The results showed that K4 (biochar 10 t ha⁻¹ + swallow manure 20 t ha⁻¹ + NPK 150 kg ha⁻¹) achieved the best growth and yield of mustard green by significantly increasing plant height, number of leaves, leaf area, fresh and dry biomass, as well as improving soil chemical properties such as pH, organic C, total N, available P, and available K. In conclusion, combination of biochar and organic fertilizers, especially with swallow manure, proved effective to enhance the soil fertility of Inceptisol for supporting growth and yield of mustard green. Based on the results, further research should be conducted using different dosages of swallow manure to obtain the optimal growth of mustard green or other vegetables in relation to reducing the use of inorganic fertilizers.
The Population and Isolates of Potential ACC Deaminase-Producing Rhizobacteria from Rhizospheric Soil of Peanut under Different Moisture Level Jaya, Dori Kusuma; Susilowati, Lolita Endang; Arifin, Zaenal; Iwandaka, Age; Martini, Eli
Jurnal Penelitian Pendidikan IPA Vol 10 No 11 (2024): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i11.7818

Abstract

ACC deaminase-producing rhizobacteria play an important role in enhancing plant growth and health, particularly under environmental stress condition. This study focused on isolating and determining the population of potential ACC deaminase-producing rhizobacteria from the rhizosphere of peanut plants (Arachis hypogea L.) grown under varying moisture level. Bacterial population was measured using the Standard Plate Count (SPC) method on Dworkin-Foster (DF) medium supplemented with 3 mM.L-1 ACC as the sole nitrogen source. The isolated bacteria were screened based on their ability to grow after 24 hours of incubation on the selective medium. Result showed that bacterial colonies on nutrient agar (NA) medium varied in color, while colonies on the selective medium were uniformly white. The total population of ACC deaminase-producing rhizobacteria generally declined as soil moisture decreased, nevertheless, the sample at 80% available water contained fewer bacteria (7.3 x 103 cfu.g-1 soil) than those (9.7 x 105 cfu.g-1) at 50%. In an additional experiment, 9 out of 11 selected isolates were found to potentially produce ACC deaminase, with 5 of these being diazotrophic bacteria. This study contributes valuable information for designing irrigation systems in sustainable land management, particularly concerning plant-beneficial microbes that produce ACC deaminase and help plants tolerate environmental stressors.
Co-Authors . Giyanto Adinda Utami, Annisa Ahmad Suriadi, Ahmad Alfitriani, Pipi Amrul Jihadi Anjar Pranggawan Azhari Ansiska, Paisal Apriani, Nita Aprianto, Dodi Azizah, Isnaniar Rahmatul Baiq Dina Hardianti Bria, Deseriana Dodi Aprianto Dwi Noorma Putri Endah Wahyuningsih Fahrudin Fahrudin Gigentika, Soraya Hasibuan, Sari Yulia Kartika Hendra R. Akhdiyat Ismiani, Sri Iwandaka, Age Jufri, Afifah Farida Kurnia, Sandra Cahya Lolita Endang Susilowati Lolita Susilowati Markum Martini, Eli Mulyati Mulyati Nirmala Fajri Novik Nurhidayat Novik Nurhidayat Novita Hidayatun Nuvus Sari Yulia Kartika Hasibuan Sari Yulia Kartika Hasibuan Sarjiya Antonius Sarjiya Antonius Siska Ita Selvia Siska Selvia Suprayanti Martia Dewi Yuliana Asri Zaenal Arifin Zainal Arifin Zaitun Ritaqwin Rita Zuhdiyah Iemaaniah Zuhdiyah Matienatul Iemaaniah