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All Journal Jurnal Penelitian Saintek Agrikultura IJOG : Indonesian Journal on Geoscience Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat SAINS TANAH - Journal of Soil Science and Agroclimatology AGROLOGIA : Jurnal Ilmu Budidaya Tanaman Soil REns Jurnal Agro Wiralodra Jurnal Tanah dan Iklim Indonesian Journal on Geoscience Indonesian Journal on Geoscience JAGROS : Jurnal Agroteknologi dan Sains (Journal of Agrotechnology Science) Agro Tatanen AGRIC Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat Jurnal Pertanian Agros Agroscript: Journal of Applied Agricultural Sciences
Rina Devnita
Departemen Ilmu Tanah Dan Sumber Daya Lahan, Fakultas Pertanian, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Public Health Social Sciences

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Evaluating Soil Particle Analysis Methods for Tropical Andosols in Indonesia Anindita, Sastrika; Sandrawati, Apong; Arifin, Mahfud; Devnita, Rina
Soilrens Vol 22, No 2 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i2.61718

Abstract

Choosing the right method to quantify soil particles (sand, silt, clay) is essential to predict and managesoil characteristics in relation to e.g. nutrient or water retention. However, separating silt and clayparticles for volcanic soils is difficult. In this study, we investigated the effect of three different soilparticle analysis methods, namely the regular pipette method, Na-resin dispersion, andultrasonication with high energy level (1500 J ml-1) on the distribution of soil particle size in tropical volcanic soils. Ultrasonication with high energy level was founded to be the best method to fullyseparate silt and clay fraction compared to Na-resin and regular pipette method. In conversion, thedispersion of soil particles using regular pipette method was suboptimal. In the ultrasonicationmethod, a step that is important to achieve full dispersion is pH buffer > 8 in soil suspension. Thisultrasonication method was founded to have good correlation with Na-resin dispersion method (R =0.88). This study suggested that conventional particle size analysis may not fully separate sand, silt,and clay particles correctly in soils rich in amorphous materials and oxides, and we proposedultrasonication high energy level with pH buffer > 8 method as an alternative method.
Advanced Satellite-Based Spectral Techniques for Identifying and Quantifying Soil Clay Minerals Devnita, Rina; Arifin, Mahfud; Ramadhan, Ilmi
Indonesian Journal on Geoscience Vol. 12 No. 2 (2025)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.12.2.301-318

Abstract

Soil mineral plays an important role in agriculture due to its ability in influencing soil physical and chemical characteristics, and therefore is important to be identified. The techniques for identifying soil minerals, such as the utilization of a polarization microscope and X-Ray Diffraction (XRD), are often laborious, time-consuming, and costly. This study aims to identify and to quantify soil clay minerals by using Hyperion EO-1 imagery and XRD methods, and to reveal the effectiveness of using satellite imagery to determine soil minerals. Spectral signatures from Hyperion EO-1 were extracted in alignment with the soil sampling coordinate locations, and spectral data processing methods such as Continuum Removal (CR), and Savitzky-Golay filtering were used to identify and to quantify minerals. The results show that hyperspectral analysis revealed distinct spectral absorption features, and it could identify kaolinite, chlorite, goethite, hematite, and plagioclase. Meanwhile, XRD analysis confirmed kaolinite and chlorite, consistent with the hyperspectral observations. A key advantage of the spectral absorption technique for raw soil was its ability to identify not only clay minerals, but also both primary and secondary minerals, such as plagioclase, hematite, and goethite, that remain unidentified when using the XRD method with iron removal pre-treatment. Although hyperspectral imagery was successful in identifying soil minerals, there are still some limitations that require further refinement, especially while conducting quantification. The findings underscored the potential of satellite-based hyperspectral analysis as a rapid alternative approach to soil mineral identification that can reduce reliance on laboratory-based methods.
Analisis Kesesuaian Lahan Aktual dan Potensial untuk Tanaman Jagung di Kecamatan Cikancung, Provinsi Jawa Barat Devnita, Rina; Umami JM, Agnes Iko; Sandrawati, Apong; Anindita, Sastrika; Arifin, Mahfud
Soilrens Vol 23, No 1 (2025)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v23i1.66091

Abstract

A systematic process of assessing the potential and limitation of land resources for specific uses is essential to provide information for land-use planning, resource management, and policy-making. This research aims to determine the actual and potential land suitability for corn (Zea mays L.) in Cikancung District, Bandung Regency, West Java, Indonesia. Land suitability evaluation was carried out through a survey method using a physiographic approach through overlaying soil maps, topography, climate, and land use to produce land map units (SPL). Data were obtained through field observations at each SPL, and the results of analysis of soil samples were taken from each SPL. Field and laboratory data were matched with corn growth requirements through the matching table method. The study revealed that land in Cikancung District has actual land suitability classes for corn cultivation of N1n.,eh; N2eh; and S3rc.nr. Of the total 987.13 ha, 3.54 ha is classified as S3, while 983.59 ha is unsuitable due to slope limitations. With slope improvements (e.g., terraces) and nutrient retention measures (e.g., lime application), and orgnanic matter application. The potential land suitability classes improve to S2wa.rc; S3eh; and Neh. Under these improved conditions, the potential suitable land area for corn (S2 and S3) increases to 142.01 ha, representing 14.38% of the total land area.
RESPONS KETERSEDIAAN KALIUM, SERAPAN K DAN HASIL JAGUNG MANIS TERHADAP APLIKASI DOSIS PUPUK NK MAJEMUK PADA INCEPTISOLS Nurlaela, Endah; Devnita, Rina; Machfud, Yuliati
Jurnal Pertanian Agros Vol 27 No 1 (2025): EDISI JANUARI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i1.37

Abstract

Fertilization is an agrotechnical method to improve soil fertility, which is crucial in increasing sweet corn production in Indonesia. Nutrient limitations in the soil often contribute to low corn yields. Inorganic fertilizers, such as compound NK fertilizers can provide essential nutrients for sweet corn. This study aims to identify the effects of different doses of compound NK fertilizers on available potassium (K), potassium uptake, and sweet corn yield. The research was conducted from October 2019 to January 2020 at the Experimental Farm and Soil Chemistry and Plant Nutrition Laboratory, Department of Soil Science and Land Resources, Faculty of Agriculture, Padjadjaran University, Jatinangor. The experimental method used was a Randomized Block Design (RBD) with 10 treatments and 3 replications. The treatments included 1 control (no fertilizer), 1 treatment with single N, P, K fertilizers, 5 treatments with various combinations of compound NK fertilizers (14.25:19.25) and single P fertilizer, 1 treatment with a single dose of compound NK fertilizer (14.25:19.25), and 2 treatments with various combinations of compound NK fertilizers (14.25:19.25) and single N, P, K fertilizers. The results showed that the combination of compound NK fertilizer (14.25:19.25) at 350 kg ha-1 with single P fertilizer at 50 kg ha-1 produced the best results, with available potassium at 2.13 cmol kg-1, potassium uptake at 42.37 mg plant-1, and cob weight with husk at 0.33 kg plant-1 on inceptisols in Jatinangor.
Keragaman Usaha Tani dan Permasalahan Pemasaran Hasil Pertanian Ubi dan Jagung di Desa Arjasari Siswanto, Shantosa Yudha; Devnita, Rina; Yahya, Jasmine Naira; Mustofa, Rizka Salsabila
Agrimasta Vol 3, No 1 (2025): November
Publisher : Fakultas Pertanian, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrimasta.v3i1.65424

Abstract

Arjasari merupakan daerah yang memiliki kondisi geografis yang mendukung masyarakatnya untuk berprofesi sebagai petani ubi dan jagung. Hal ini dibuktikan dengan tingginya produktivitas ubi dan jagung yang mampu menambahkan peluang pada pasar ekspor yang menjanjikan. Metode pelaksanaan yang digunakan pada program ini memakai metode wawancara secara langsung untuk merekap data dari hasil wawancara. Program ini mencakup kegiatan koordinasi dengan petani, persiapan pertanyaan, dan wawancara secara langsung. Hasil survei menunjukkan bahwa lahan jagung di desa Arjasari memiliki produktivitas lahan yang realtif rendah Petani jagung rata-rata memiliki kesulitan akses modal dan pasar¸. Sehingga petani masih tergantung kepada para tengkulak.
Pengaruh Pupuk Majemuk Mikro dan N, P, K terhadap Kadar Mn Tanaman dan Hasil Tomat Sofyan, Emma Trinurani; Devnita, Rina; Setiawan, Ade; Maharani, Yani; Risman, Riky
AGROSCRIPT: Journal of Applied Agricultural Sciences Vol 8 No 1 (2026): June (In Press)
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36423/agroscript.v8i1.2711

Abstract

Penurunan produktivitas tanaman pada ordo Inceptisols disebabkan oleh ketidakseimbangan hara seperti mangan, sehingga diperlukan pemupukan yang tepat dan berimbang. Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi pupuk majemuk mikro dan  N, P, K terhadap kadar Mn tanaman dan hasil tomat (Solanum lycopersicum L.) pada Inceptisols asal Jatinangor. Penelitian dilaksanakan di Lahan Percobaan Kimia Tanah dan Nutrisi Tanaman, Fakultas Pertanian Universitas Padjadjaran, menggunakan Rancangan Acak Kelompok (RAK) dengan enam perlakuan dan empat ulangan: Kontrol;  N, P, K Rekomendasi; ½ Majemuk Mikro + N, P, K Rekomendasi; 1 Majemuk Mikro +N, P, K Rekomendasi; 1 ½ Majemuk Mikro + N, P, K Rekomendasi; 1 Majemuk Mikro + ¾ N, P, K Rekomendasi. Parameter yang diamati meliputi kadar Mn tanaman, diameter buah, jumlah buah, dan bobot buah per petak. Hasil penelitian menunjukkan bahwa kombinasi pupuk majemuk mikro dan N, P, K berpengaruh nyata terhadap seluruh parameter pengamatan. Perlakuan F menghasilkan kadar Mn tertinggi serta memberikan diameter, jumlah, dan bobot buah per petak lebih tinggi dibandingkan perlakuan kontrol. Peningkatan tersebut masing-masing sebesar 157,8%, 44,7%, 132,0% dan 127,3%. Hasil ini menunjukkan bahwa pemupukan berimbang antara unsur hara makro dan mikro mampu meningkatkan efisiensi pemupukan serta produktivitas tomat secara optimal pada Inceptisols.
The relationship between soil properties in pedogenesis dynamics: A study of pedons on slopes and basins Yulina, Henly; Arifin, Mahfud; Devnita, Rina; Djuwansah, Muhamad Rahman; Raidasari, Fatharani
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.109149

Abstract

Soil formation and weathering are essential processes influencing natural fertility, yet the combined role of particle size distribution, texture, and organic carbon content at the profile scale remains understudied. Earlier research has focused chiefly on soil properties at the landform or regional scale, without examining interhorizon variations, leading to a limited understanding of their interactions in pedogenesis under different environments. This study compared the physical and chemical characteristics of soils in two contrasting pedons, Jatinangor (slope) and Tanjungsari (depression), both located in Sumedang Regency, West Java, Indonesia, with similar soil-forming factors. A descriptive-comparative method was employed using horizon-based sampling, laboratory analysis, and Principal Component Analysis (PCA) to reveal relationships and dominant factors. Results indicated that clay fractions dominated the JTN (Jatinangor) pedon with a clay texture due to intensive weathering under well-drained conditions. In contrast, the TJN (Tanjungsari) pedon was dominated by silt fractions resulting from fine material deposition under waterlogged conditions. Organic carbon content was lower in JTN due to leaching on slopes, whereas higher accumulation occurred in TJN due to depression settings. PCA identified sand fraction as the main discriminating factor, while fine fractions (silt and clay) were positively associated with organic carbon. These findings highlight that integrated analysis of these variables at the pedon scale provides a sensitive indicator of pedogenesis, weathering, and soil fertility.
Co-Authors Ade Setiawan Ade Setiawan Ade Setiawan Ade Setiawan Ade Setiawan Adita Rizky Syntianis Adita Rizky Syntianis Adjat Sudradjat Ai Ening Rostini Anindita, Sastrika Anni Yuniarti Apong Sandrawati Apong Sandrawati Apong Sandrawati Aton Patonah Benny Joy Cucu Suherman Daud Siliwangi Saribun Djuwansah, Muhamad Rahman Dwi Purnomo Edi Tri Haryanto Emi Sukiyah Emma Trinurani Sofyan Endah Nurlaela F Rosana Fajri Syahid Nurhakim Ganjar Herdiansyah, Ganjar Henly Yulina Henly Yulina Henly Yulina Henly Yulina Henly Yulina Henly Yulina Henly Yulina, Henly Ilmi Ramadhan Mahfud Arifin Mahfud Arifin Marenda Ishak Sonjaya Sule Muhammad Amir Solihin Mustofa, Rizka Salsabila Noviani Putri Nursuhud Nursuhud Oviyanti Mulyani Pradhinto Dwi Nugroho Pujawati Suryatmana Putri, Noviani R Hudaya Rachmat Harryanto Rachmat Haryanto Rachmat Heryanto Raidasari, Fatharani Ramadhan, Ilmi Reginawanti Hindersah Ridha Hudaya Ridha Hudaya Ridha Hudaya Ridha Hudaya Rija Sudirja Risman, Riky Rosi Rosidah Sandrawati, Apong Santi Rosniawaty Shantosa Yudha Siswanto Sitorus, Hasnan Pratama Teddy Marpaung Umami JM, Agnes Iko Widara Almaghfirah Ismail Yahya, Jasmine Naira Yani Maharani, Yani Yanuar Euro Andrian Yuliati Machfud Yuliati Machfud, Yuliati Zufialdi Zakaria