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All Journal Journal of Tropical Soils GEA, Jurnal Pendidikan Geografi Jurnal Sains Teknologi dan Lingkungan (JSTL) Jukung (Jurnal Teknik Lingkungan) Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA Community Development Journal: Jurnal Pengabdian Masyarakat Agrimansion: Agribusiness Management & Extension Jurnal SIAR ILMUWAN TANI Agroteksos
Rika Andriati Sukma Dewi
Jurusan Ilmu Tanah, Fakultas Pertanian, Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Public Health Social Sciences

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Loss of Soil Organic Matter, Lignocellulose and Microbial Population in Oil Palm Plantations Located at Different Slopes Rika Andriati Sukma Dewi; Lilik Tri Indriyati; Bandung Sahari; Supiandi Sabiham
JOURNAL OF TROPICAL SOILS Vol 22, No 3: September 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i3.175-181

Abstract

Loss of soil organic matter can be caused by erosion triggered by soil compaction and high rainfall. The aims of  the study were to determine (1) the loss of soil organic matter, lignocellulose, and soil microbial population due to erosion and (2) the contribution of organic matter from oil palm fronds. In the current study, the erosion plots were built on the accessible inter-row (gawangan hidup) and inaccessible inter-row (gawangan mati) of oil palm plantations located at the slope of 6-10% and >10%. Soil organic matter, lignin, cellulose, and hemicellulose contents and total soil microbial populations were measured in the sediments collected from the erosion plots. The results showed that the loss of organic matter was higher in the accessible inter-row than that in the inaccessible inter-row. The addition of lignin, cellulose, and hemicellulose from oil palm fronds into the soil are 2.06 Mg ha-1 yr-1, 1.13 Mg ha-1 yr-1 and 1.02 Mg ha-1 yr-1, respectively. Total bacterial population in the sediments taken from the accessible inter-row was higher than that from the inaccessible inter-row, while the total fungal population in the sediments from the inaccessible inter-row was higher than that from the accessible inter-row.  
Pemberdayaan Masyarakat Melalui Bank Sampah di Desa Kerongkong Kecamatan Suralaga Kabupaten Lombok Timur Rika Andriati Sukma Dewi; Muhammad Nursan; Fadli; Aeko Fria Utama FR; Deni Irawan
Jurnal Pengabdian Magister Pendidikan IPA Vol 5 No 3 (2022): Juli - September
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.62 KB) | DOI: 10.29303/jpmpi.v5i3.2123

Abstract

Waste management is still a serious problem that must be resolved, especially in Kerongkong Village, Suralaga District, East Lombok. One of the efforts that can be done is waste management through waste banks. Therefore, the purpose of this community service is to increase public knowledge regarding waste banks and improve community skills and income through waste bank management. This community service activity was carried out in Kerongkong Village, Suralaga District, East Lombok, which consisted of 2 activities including preparation and implementation of activities. The results of the service activities show that an increase in public knowledge about waste bank management and the establishment and empowerment program through a waste bank in Kerongkong Village, Suralaga District, East Lombok Regency has been able to reduce the amount of piles of waste generated by the community, improve community skills and income in managing waste banks. . To support the sustainability of the waste bank program, it is highly expected that there will be support from the community and the government so that the waste bank can maintain cleanliness and environmental sustainability in the future.
Pendampingan Budidaya Jahe Merah (Zingiber officinale var. Rubrum) di Lahan Kering Tanah Vertisol pada Daerah Penyangga KEK Mandalika Nur Asri Shakila; Mahrup; Zuhdiyah Matienatul Iemaaniah; Rika Andriati Sukma Dewi
Jurnal SIAR ILMUWAN TANI Vol. 4 No. 1 (2023): Jurnal Siar Ilmuwan Tani
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jsit.v4i1.98

Abstract

Mandalika merupakan Kawasan Ekonomi Khusus super prioritas yang berada di Kecamatan Pujut, Kabupaten Lombok Tengah, Nusa Tenggara Barat. Sebagai kawasan wisata, tentu saja ketersediaan bahan pangan menjadi salah satu hal yang penting untuk diperhatikan. Untuk mendukung kawasan wisata yang maju, pangan sebagai salah satu kebutuhan pokok manusia harus terjaga ketersediaannya baik secara kuantitas maupun kualitas. Secara geografis, lokasi ini berada di bagian selatan Pulau Lombok dengan iklim yang kering. Jenis tanah yang berkembang pada daerah tersebut yakni tanah vertisol. Tanah vertisol merupakan tanah yang terbentuk dari batuan kapur pada daerah yang kering. Tanah vertisol memiliki karakteristik yang sangat khas yaitu sifat kembang kerut yang nyata. Jahe merah merupakan salah satu jenis tumbuhan rimpang yang populer untuk dimanfaatkan sebagai penghangat tubuh dan memiliki nilai ekonomi tinggi. Dengan kondisi iklim yang kering, jahe merah dapat dikembangkan di daerah penyangga KEK Mandalika dengan beberapa penyesuaian irigasi (sistem irigasi tetes) dan pemberian bahan organik pada tanah dapat memberikan lingkungan yang sesuai untuk pertumbuhan jahe merah.
Landuse Changes and Policy Directions for Agriculture due to Decreasing Agricultural Land in Mandalika Special Economic Zone Zuhdiyah Matienatul Iemaaniah; Joko Priyono; Rika Andriati Sukma Dewi; Siska Ita Selvia
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.61629

Abstract

Agricultural land is still priority for Indonesian people, the majority of whom are farmers. Along with the times and technological advances, as well as rapidly increasing population growth, agricultural land began to experience a widespread decline. The area of agricultural land that has decreased is a result of the construction of various public facilities that support an area. The Mandalika Special Economic Zone (SEZ) is experiencing land conversion from undeveloped land to built-up land due to the rapid development in the area. The purpose of this study is to determine changes in land use before and after the construction of the Mandalika Circuit and as a policy direction to increase agricultural land productivity. The research method uses GIS analysis for changes in land use and Focus Group Discussions (FGD) to obtain agricultural policy directions. The results obtained are that it is known that there has been a change in land use in Kuta Village after the Designation of the Mandalika Special Economic Zone with the Mandalika Circuit Development, and increasing the construction of built-up land. The landuse changes in ricefields decreased by 25.77 hectares, plantations 113.98 hectares, farms decreased by 86.06 hectares, while other lands is increase of 516.8 hectares. Directions for agricultural policy obtained directions that there has been a determination of sustainable agricultural land in Central Lombok Regency besides that there is a need for the implementation of Sustainable Food Homes (RPL), the concept of agrosilvopastura agriculture, waste utilization and the need for the development of agriculture-based tourism.
Pengaruh Pemberian Biochar Terhadap Perubahan Sifat Kimia Tanah Vertisol dan Pertumbuhan Kacang Hijau (Vigna radiata L.): The Impact of Biochar Application on Alterations in Chemical Properties of Vertisol Soil and the Growth of Mung Bean (Vigna radiata L.) Alvi Maydayana; Bambang Hari Kusumo; Lalu Arifin Aria Bakti; Rika Andriati Sukma Dewi
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 4 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i4.478

Abstract

Vertisols are soils that have a high cation exchange capacity but tend to have a low organic matter content. Meanwhile, nutrients availability in vertisol tends to be low because these elements are bound by clay particles, so the nutrient availability is limited for plantsThe aim of this research is to investigate the influence of rice husk biochar and corn cob biochar application on the changes in chemical properties of Vertisol soil and the vegetative growth of mung bean (Vigna radiata L.). The study was conducted using a Randomized Complete Block Design (RCBD) with an experimental approach. There were 8 treatments repeated 6 times, resulting in a total of 48 experimental units. The rice husk biochar (P) treatments included the control without rice husk biochar (BSP0), rice husk biochar at a rate of 60 g/kg soil (150 tons/ha) + 2.5 kg soil (BSP1), rice husk biochar at a rate of 30 g/kg soil (75 tons/ha) + 2.5 kg soil (BSP2), and rice husk biochar at a rate of 15 g/kg soil (37.5 tons/ha) + 2.5 kg soil (BSP3). The corn cob biochar (J) treatments included the control without corn cob biochar (BTJ0), corn cob biochar at a rate of 60 g/kg soil (150 tons/ha) + 2.5 kg soil (BTJ1), corn cob biochar at a rate of 30 g/kg soil (75 tons/ha) + 2.5 kg soil (BTJ2), and corn cob biochar at a rate of 15 g/kg soil (37.5 tons/ha) + 2.5 kg soil (BTJ3). The research data were analyzed using Analysis of Variance (ANOVA) at a significance level of 5%. Significant differences between treatments were further analyzed using the Duncan's New Multiple Range Test (BNJ) at a significance level of 5%. The soil analysis was carried out at the Soil Physics and Soil Chemistry Laboratories, Faculty of Agriculture, Universitas Mataram. The results of the research showed that biochar application influenced the chemical properties of the soil (pH, Cation Exchange Capacity, Organic-C) and the growth of mung bean plants in Lombok's Vertisol soil. Biochar did not have a significant effect on the height of mung bean plants at 7 and 14 days after planting (DAP), but it had a significant effect at 21, 28, and 35 DAP. However, the application of biochar did not significantly affect the number of leaves and dry weight of mung bean plants.  
Uji Kombinasi Pupuk Anorganik Dan Pupuk Bio-Organik P Terhadap Ketersediaan P Dalam Tanah, Serapan P Tanaman, Dan Populasi Bakteri Pelarut Fosfat Pada Tanaman Kedelai (Glycine Max L. Merrill): Combination Test of Inorganic Fertilizer and Bio-Organic Fertilizer on P Availability in Soil, Plant P Absorption, and Population of Phosphate Solvent Bacteria in Soybean Plants (Glycine Max L. Merrill). Baiq Fitri Pebrianti R.P; Lolita Endang Susilowati; Zaenal Arifin; Mansur Mashum; Rika Andriati Sukma Dewi
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 4 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i4.481

Abstract

The application of bio-organic P fertilizer alongside inorganic fertilizers plays a crucial role in increasing available phosphorus (P) for plants while also aiming to reduce and optimize the use of inorganic fertilizers. This combination is expected to enhance crop yields, balance nutrient availability, and improve soil structure. The objective of this research was to investigate the impact of the combination of inorganic and bio-organic P fertilizers on soil P availability, P uptake in soybean plants, and the population of Phosphate-Solubilizing Bacteria (PSB) during the vegetative phase. The research utilized an experimental approach with four treatments. Each treatment involved five randomly selected samples, resulting in a total of 20 experimental units. The study was conducted from March to July 2019 in paddy fields in Semoyang Village, Praya Timur Subdistrict, Central Lombok Regency. The treatments used were as follows: P1 (50% of the recommended inorganic fertilizer + 10 g of bio-organic P fertilizer per plant), P2 (75% of the recommended inorganic fertilizer + 10 g of bio-organic P fertilizer per plant), P3 (100% of the recommended inorganic fertilizer), and the control group (without any treatment). The parameters analyzed in this study were the available P content in the soil, soil pH, dry weight of biomass, P uptake in plants, and the population of Phosphate-Solubilizing Bacteria. The results demonstrated that the treatments involving the combination of inorganic and bio-organic P fertilizers showed improvements in all tested parameters compared to using only inorganic fertilizers. The soil pH ranged from 6.56 to 6.64, available soil P ranged from 13.2 to 17.33 ppm, dry weight of biomass ranged from 8.2 to 11.01 grams, P uptake in plants ranged from 10.69 to 16.76 mg per plant, and the population of PSB ranged from 1.14×106 cfu/g to 4.56×107 cfu/g.  
POPULASI BAKTERI DAN RESPIRASI MIKROBA TANAH PADA RHIZOSFER TANAMAN JAGUNG ( Zea mays L.) YANG DIBERI PUPUK TERPADU DAN BIOCHAR SEKAM PADI PADA MASA VEGETATIF MAKSIMUM Saputra, Eta; Putu, Silawibawa; Susilowati, Lolita Endang; Dewi, Rika Andriati Sukma
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 33 No 2 (2023): Jurnal Agroteksos Agustus 2023
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v33i2.859

Abstract

This study aims to determine the Bacterial Population and Microbial Respiration in the rhizosphere of corn plants due to the application of integrated fertilizers and rice husk biochar soil amendments during the maximum vegetative period. This research was conducted using an experimental method with polybag experiments in a greenhouse from July to September 2021. The experiment was arranged using a completely randomized design (CRD) with 7 treatment combinations P0 (control treatment), P1 (Urea + phonska administration), P2 ( Giving Urea + Phonska + Biochar), P3 (Giving Urea + Phonska + BPF), P4 (Giving Urea + Phonska + Biochar + BPF), P5 (Giving Urea + Phonska + BPF + Compost), P6 (Giving Urea + Phonska + Biochar) + BPF + Compost). Each treatment was repeated 3 times, so as many as 21 units of experimental polybags were obtained. Parameters measured were total bacterial population, population of phosphate solubilizing bacteria, soil microbial respiration, pH, cation exchange capacity, and C-Organic. The results showed that the application of integrated fertilizers (inorganic, compost and biological-BPF) and rice husk biochar had a significant effect. on the total bacterial population, BPF and soil microbial respiration in the corn plant rhizosphere observed at the maximum vegetative period. From this study, it was concluded that the combination of inorganic fertilizer + organic fertilizer + bpf and biochar was the best combination in increasing the total population of bacteria, phosphate solubilizing bacteria and soil microbial respiration.
APLIKASI PENGARUH PELAPISAN BENIH DENGAN PUPUK ORGANOMINERAL TERHADAP PERTUMBUHAN HASIL DAN EFISIENSI PEMBERIAN PUPUK UREA PADA TANAMAN JAGUNG DI VERTISOL LOMBOK TENGAH Valentin, Baiq Heni; Priyono, Joko; Sutriono, Raden; Bhakti, Lalu Arifin Aria; Dewi, Rika Andriati Sukma
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 33 No 2 (2023): Jurnal Agroteksos Agustus 2023
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v33i2.851

Abstract

The seed coating technique using organomineral fertilizer aims to reduce farming costs (fertilizer and fertilizing labor) so that farmer do not need to apply fertizers except for urea fertilizer which is not contained in organomineral fertilizers. This study aims to find out the effect of coating corn seeds with organomineral fertilizer on the growth of yields and efficiency of urea fertilizer delivery on corn crops in central Lombok vertisol in June to October 2021. The field experiment using the split plot experimental design with the main plot of seed coating treatment coated with organomineral fertilizer and as a child of plot with a dose of urea fertilizer consisting of three levels, namely 200, 300 and 400 kg urea / ha. The parameters studied are Dry Brangkasan Weight, Weight 100 Grains, Seed Yield, Pipilan Dry Weight, Plant Tissue Absorption N. The results showed that coating corn seeds with organomineral fertilizer had no real effect on all parameters. While the dose of urea fertilizer has no real effect on the Weight of Dry Brangkasan (BBK), Weight of 100 Grains, Seed Shortening and a real effect on The Dry Weight of Pipilan, Uptake of N Plant Tissue and Efficiency of Absorption N. The highest Yield of Dry Weight of Pipilan is obtained from Unsalted Seeds (BTB) on the provision of urea fertilizer 300 kg / ha. The efficiency of N uptake from Unsalted Seeds and Layered Seeds increased at urea fertilizer doses of 200 kg/ha ywhich is 77.62% and 75.71%.
APLIKASI BIOCHAR TERHADAP KETERSEDIAAN HARA NITORGEN DAN FOSFAT DI TANAH VERTISOL LOMBOK Dewi, Rika Andriati Sukma; Sukartono, Sukartono; Bakti, Lalu Arifin Aria; Selvia, Siska Ita; Iemaaniah, Zuhdiyah Matienatul
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 34 No 2 (2024): Jurnal Agroteksos Agustus 2024
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v34i2.976

Abstract

Tanah vertisol memiliki nilai kapasitas tukar kation dan kejenuhan basa yang tinggi namun kandungan bahan organik dan ketersediaan hara bagi tanaman rendah. Tujuan dari penelitian ini adalah untuk mengevaluasi bagaimana pengaruh aplikasi biochar sekam padi dan tongkol jagung terhadap ketersediaan hara N dan P serta serapan hara N dan P pada tanaman kedelai pada tanah vertisol Lombok Tengah. Dosis biochar (sekam padi dan tongkol jagung) masing-masing yang diberikan yaitu 0, 10, 15, 20, 25 dan 30 ton/ha tanah vertisol. Tanah sampel diambil dari desa Kawo (Lombok Tengah) dan kegiatan percobaan dilaksanakan di rumah kaca Fakultas Pertanian Universitas Mataram. Parameter yang diamati antara lain pH, N-total dan P tersedia pada tanah vertisol serta analisis jaringan tanaman kedelai berupa serapan hara N dan P jaringan tanaman. Hasil penelitian menunjukkan bahwa pemberian biochar sekam padi dan tongkol jagung dapat memperbaiki sifat kimia tanah vertisol yaitu KTK dan pH. Pengaruh biochar terhadap C-organik tidak memberikan pengaruh yang nyata. Untuk parameter N-total, biochar tongkol jagung memberikan pengaruh yang nyata sedangkan biochar sekam padi tidak memberikan pengaruh yang nyata. Parameter N tersedia tidak menunjukkan adanya pengaruh biochar terhadap parameter tersebut. Sementara itu, aplikasi biochar memberikan pengaruh yang nyata terhadap parameter P tersedia serta pengaruh biochar terhadap serapan P hanya terlihat pada biochar sekam padi. Kata Kunci: Vertisol, Biochar, Hara, Nitrogen, Fosfat
PERKEMBANGAN KELEMBAGAAN PETANI TERHADAP BANTUAN PEMERINTAH Irawan, Deni; Dewi, Rika Andriati Sukma; Rijal, Moh. Samsul; Fiddin, Aji Nasrul
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 34 No 2 (2024): Jurnal Agroteksos Agustus 2024
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v34i2.1250

Abstract

Penguatan kelembagaan organisasi petani berperan krusial dalam meningkatkan efektivitas program bantuan pemerintah di sektor pertanian, terutama bagi petani skala kecil di negara berkembang. Penelitian ini mengeksplorasi dinamika perkembangan kelembagaan petani serta strategi untuk mengoptimalkan pemanfaatan dukungan pemerintah guna memperkuat ketahanan pertanian di tingkat lokal. Penelitian ini menggunakan metode kombinasi (mixed methods) dengan pendekatan kuantitatif dan kualitatif untuk memperoleh hasil yang komprehensif. Data primer dikumpulkan melalui wawancara mendalam dan survei lapangan. Penelitian ini berfokus pada kelembagaan petani di desa Bunut Baok (Kecamatan Praya) dan desa Kateng (Kecamatan Praya Barat), dengan sasaran utama kelompok tani dan koperasi petani sebagai organisasi penting dalam pengadaan sarana produksi, pemasaran, serta pengelolaan usaha tani. Bantuan yang diberikan pemerintah, terutama pupuk subsidi, memainkan peran penting dalam mendukung produktivitas pertanian kelompok tani. Namun, untuk meningkatkan kemandirian dan keberlanjutan kelembagaan, dibutuhkan dukungan lebih lanjut dalam bentuk alat-alat pertanian, teknologi, serta pelatihan yang intensif. Proses pengajuan bantuan yang lebih mudah juga akan membantu mempercepat penguatan kelembagaan.
Co-Authors Aeko Fria Utama FR Ahmad Suriadi, Ahmad Akbar, Sandi Alvi Maydayana Atang Sutandi Baharuddin Baharuddin Baiq Fitri Pebrianti R.P Bakti, Lalu Arifin Aria Bambang Hari Kusumo BANDUNG SAHARI Bandung Sahari Bhakti, Lalu Arifin Aria Bustan Bustan Bustan, Bustan Deni Irawan Deni Irawan, Deni Fadli Fiddin, Aji Nasrul Iemaniiah, Zuhdiyah Matiienatul Indriyati, Lilik Tri Joko Priyono Joko Priyono Lalu Arifin Aria Bakti Lalu Arifin Aria Bakti Lalu Bahrul Ilmi Lalu Hadryan Sukma Maftuh, Miftahul Mahrup Mansur Mashum Muh. Safrony Akmal Mulyati Mulyati Mulyati Nirmala, Tiara Dwi Nur Asri Shakila Nursan, Muhammad Putu, Silawibawa Rijal, Moh. Samsul Saputra, Eta Selvia, Siska Ita Shakila, Nur Asri Siddiqirly, Muhammad Siska Ita Selvia Siska Ita Selvia Sukartono Sukartono Supiandi Sabiham Sutriono, Raden Valentin, Baiq Heni Wulan, Raden Sri Tejo Zaenal Arifin Zuhdiyah Matienatul Iemaaniah