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All Journal JURNAL SAINS PERTANIAN EQUATOR Perkebunan dan Lahan Tropika Journal of Tropical Soils Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Biologi Tropis Jurnal Ilmu Tanah dan Sumber Daya Lahan Jurnal Pertanian Agros Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto Jurnal Pengabdian kepada Masyarakat Nusantara Agroteksos Jurnal Teknologi Lingkungan Lahan Basah Jurnal Manusia dan Lingkungan Jurnal Pertanian Agros Jurnal Abdimas Ilmiah Citra Bakti
Denah Suswati
Fakultas Pertanian, Universitas Tanjungpura
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Public Health Social Sciences Other

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PERANAN BOKASHI TERHADAP KETERSEDIAAN HARA N, P, K PADA PERTUMBUHAN TANAMAN JAGUNG MANIS DI TANAH GAMBUT Rita Hayati, Oktavianti, Denah Suswati,
Jurnal Sains Pertanian Equator Vol. 11 No. 2
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v11i2.54007

Abstract

ABSTRAKPenelitian dilakukan untuk mengetahui peranan bokashi terhadap ketersediaan hara N, P, K dan pertumbuhan tanaman jagung di tanah gambut. Penelitian merupakan percobaan lapangan yang menggunakan pola rancangan acak lengkap (RAL) terdiri 1 faktor dengan 6 perlakuan dan 4 ulangan, sehingga terdapat 24 polibag. Setiap perlakuan tanaman diulang sebanyak 2 set perlakuan, sehingga total 48 polibag. Sampel tanaman diambil pada perlakuan dengan dosis V0 : Tanpa Perlakuan 0 g/polibag V1 : 10 ton/ha (290 g/polibag) V2 : 20 ton/ha (590 g/polibag) V3 : 30 ton/ha (790 g/polibag) V4 : 40 ton/ha (1170 g/polibag) V5 : 50 ton/ha (1500 g/polibag). Hasil penelitian menunjukkan bahwa pemberian bokashi berpengaruh nyata terhadap pH Tanah, C-Organik, N- Total Tanah, P-Tersedia Tana, K-dd Tanah, Tinggi Tanaman, dan Diameter Batang.Dosis terbaik yaitu pada perlakuan V3 : 30 ton/ha (790 g/polibag)Kata kunci: Bokashi, Gambut, Jagung, Ketersediaan Hara N, P, K
KAJIAN SIFAT KIMIA TANAH PADA TIGA TIPE PENGGUNAAN LAHAN GAMBUT DI DESA WAJOK HILIR KECAMATAN SIANTAN KABUPATEN MEMPAWAH Sungkin, Feche Jeremia; Suswati, Denah; Gafur, Sutarman
Jurnal Sains Pertanian Equator Vol. 12 No. 4
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v12i4.64614

Abstract

Penelitian ini bertujuan untuk mengetahui perbedaan sifat kimia tanah gambut akibat alih fungsi lahan pada kebun sawit, kebun jagung dan hutan sekunder di Desa Wajok Hilir Kecamatan Siantan Kabupaten Mempawah. Metode penelitian bersifat survey lapangan, pengambilan sampel tanah pada kedalaman 0-30 cm dan analisis laboratorium. Hasil penelitian menunjukan sifat kimia tanah, reaksi tanah (sangat masam), Carbon Organik (sangat tinggi), Nitrogen total (sangat tinggi), fosfor tanah (sangat rendah), Kalium Tanah (sangat rendah), Calsium Tanah (sangat rendah), Magnesium (sangat rendah), Kejenuhan Basa (sangat rendah), Kapasitas Tukar Kation (sangat tinggi), Daya Hantar Listrik (sangat tinggi), Kadar Abu, Bobot Isi (rendah). Sifat kimia tanah di tiga lahan tergolong sangat rendah.
PEMBERDAYAAN KELOMPOK TANI TUAH TALINO MELALUI PEMANFAATAN LIMBAH ORGANIK MENJADI PUPUK ORGANIK CAIR DI KELURAHAN MAYASOPA, KOTA SINGKAWANG Eka Widiawati Wijaya Kusuma; Denah Suswati; Gunadi Gunadi
Jurnal Abdimas Ilmiah Citra Bakti Vol. 7 No. 3 (2026)
Publisher : STKIP Citra Bakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38048/jailcb.v7i3.7361

Abstract

Pengelolaan limbah organik rumah tangga dan kebun di Kelurahan Mayasopa, Kecamatan Singkawang Timur, Kota Singkawang belum dilakukan secara optimal. Limbah sayur masih banyak dibuang secara terbuka atau dibakar, sementara potensi pemanfaatannya sebagai bahan baku pupuk organik belum dimanfaatkan secara optimal. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan pengetahuan dan keterampilan mitra dalam memanfaatkan limbah organik lokal menjadi pupuk organik cair (POC) yang dapat digunakan untuk mendukung kegiatan budidaya jagung. Mitra kegiatan adalah Kelompok Tani Tuah Talino di Kelurahan Mayasopa yang beranggotakan 10 orang. Metode pelaksanaan menggunakan pendekatan partisipatif melalui tahapan persiapan program, sosialisasi, demonstrasi dan praktik pembuatan POC, serta evaluasi pelaksanaan dan keberlanjutan program. POC dibuat menggunakan limbah sayur dan limbah kebun sebagai bahan baku, dengan penambahan EM4 dan gula merah untuk mendukung proses fermentasi. Hasil kegiatan menunjukkan bahwa mitra dapat mengikuti dan mempraktikkan tahapan pembuatan POC, mulai dari persiapan dan pencacahan bahan, pencampuran bahan, perakitan sistem fermentasi, hingga pemantauan proses. Mitra juga menunjukkan respons dan partisipasi aktif selama kegiatan, serta menilai teknologi yang diperkenalkan sesuai dengan kebutuhan dan sumber daya yang tersedia di lingkungan mereka. Kegiatan ini menunjukkan bahwa pemanfaatan limbah organik melalui teknologi sederhana dan pendekatan partisipatif dapat meningkatkan pengalaman praktis dan kapasitas teknis kelompok tani dalam mengolah limbah menjadi POC.
The effect of ameliorants on improvement of soil fertility in post gold mining land at West Kalimantan Mastur, Sulakhudin; Suswati, Denah; Hatta, Muhammad
Journal of Degraded and Mining Lands Management Vol. 4 No. 4 (2017)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2017.044.873

Abstract

The application of ameliorant has been suggested to improve soil fertility and crop growth in post illegal gold mining (PIGM) lands. This study evaluated the effect of ameliorant types and semi-permeable layer on properties of soil in PIGM lands and growth of sorghum. A field experiment employed two treatments, i.e. type of ameliorant and semi-permeable layer. There were four ameliorant types applied i.e., without ameliorant (M0); coastal sediment at a dose of 40 t/ha (M1); biochar at a dose of 4 t/ha (M2), and coastal sediment at a dose  of 30 t/ha + 4 t biochar/ha(M3).  The second treatment consisted of two levels, namely: without a semi-permeable layer (S0) and the semi-permeable layer of 20 cm depth from the soil surface (S1). The results showed that types of ameliorant gave different effect to soil properties. Application of coastal sediment at a dose of 40 t/ha significantly increased the contents of Ca and Mg, whereas application of biochar at a doses of 4 t/ha increased soil CEC. The semi-permeable layer did not significantly affect plant height and stem diameter of sorghum. The highest of sorghum growth was reached by application of coastal sediment at a dose of 30 t/h + biochar at a dose of 4 t/ha. The combination of coastal sediment and biochar from banana peels could complement each other to improve soil fertility in PIGM land 
Peat Soil Chemistry–Maize Productivity Correlations under Red Mud and Goat Manure Amendments Eka Widiawati Wijaya Kusuma; Denah Suswati
Jurnal Biologi Tropis Vol. 26 No. 4 (2026): in Progress
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.v26i4.13507

Abstract

Peat soils are characterized by high acidity, low base saturation, and complex nutrient dynamics, making relationships between soil chemical properties and maize productivity important to evaluate under different amendment regimes. This study aimed to explore these relationships under combinations of red mud and goat manure. The experiment was conducted for three months using peat soil from North Pontianak District, Pontianak City, Indonesia, in a 4 × 3 factorial arrangement with four red mud rates (100, 200, 300, and 400 g/polybag) and three goat manure rates (1,000, 2,000, and 3,000 g/polybag), with three replications (36 experimental units). Pearson correlation analysis explored relationships between soil pH, organic C, total N, available P, exchangeable K, Ca, Mg, and Na, cation exchange capacity, base saturation, and maize grain weight and number per cob. Correlation patterns varied among amendment combinations. Nominal associations were observed for pH, exchangeable Ca, K, and Na with grain number or weight in several combinations, while available P and cation exchange capacity were associated with grain weight in selected treatments. Overall, the observed relationships were combination-specific. Because each combination had only three replications and multiple correlations were examined, these findings should be interpreted as exploratory. Further studies with greater replication and factorial analysis are needed to confirm the observed relationships.
Studi Status Unsur Hara Makro Tanah Ultisol Pada Tanaman Kelapa Sawit (Elaeis Guineensis Jacq.) Desa Engkersik Kabupaten Sekadau Adrestianda, Endang Azzahra; Suswati, Denah; Murni, Sri Dewi
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol. 12 No. 1 (2026): Februari
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v12i1.105893

Abstract

Ultisols are characterized by low base saturation and acidic soil reaction, with moderate natural fertility and organic matter, thus requiring specific fertilizer management to support oil palm productivity. This study aims to assess the status of macronutrients (N, P, K, Ca, and Mg) in Ultisol soils in Engkersik Village, Sekadau Hilir Subdistrict, and to formulate fertilization recommendations based on soil analysis. Analysis results for the three plots indicate that the soil at the study site has an acidic to slightly acidic reaction, low to moderate organic carbon, and moderate total nitrogen; however, it has very low to low levels of available phosphorus, exchangeable potassium, exchangeable calcium, exchangeable magnesium, cation exchange capacity, and base saturation. Based on these nutrient levels, an increase in soil pH is needed; the recommended fertilizer application per plant for the three plots ranges from 1.5–1.6 kg of urea, 0.73–0.93 kg of TSP, and 3.36–3.85 kg of MOP (KCl). Keyword: Engkersik Village, nutrient status, oil palm, Ultisols
Identifikasi Sifat Kimia Tanah pada Lahan Sawah Irigasi di Desa Mobui Kecamatan Kembayan Oktafiyana, Maria; Suswati, Denah; Romiyanto, Romiyanto
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol. 12 No. 1 (2026): Februari
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v12i1.105910

Abstract

Soil is the primary medium for plant growth with diverse characteristics, including soil chemical properties that play an important role in determining soil fertility and land capability. This research aimed to identify soil chemical properties in irrigated rice fields in Mobui Village, Kembayan District, Sanggau Regency as a basis for efficient soil management and fertilization. The research was conducted on three units of irrigated rice fields, each with an area of 1 hectare with different rice production yields. Soil sampling used purposive sampling method and diagonal system at a depth of 0-20 cm, consisting of 12 disturbed soil samples composited from five sub-samples at each observation point and 3 undisturbed soil samples. Laboratory analysis included soil texture, bulk density, pH, C-organic, N-total, P-available, exchangeable-K, exchangeable-Ca, exchangeable-Mg, CEC, and base saturation. The results showed that the soil type at the research location belonged to Inceptisol order with Typic Dystrudepts subgroup. Soil texture ranged from clay loam to loam with low to moderate bulk density (0.83-0.91 g/cm³). Soil chemical properties showed acidic pH (5.43-5.64), moderate to high C-organic (2.11-3.22%), moderate N-total (0.30-0.37%), low P-available (10.34-11.78 ppm), very low to low exchangeable-K (0.13-0.23 cmol(+)kg⁻¹), very low to low exchangeable-Ca (1.37-2.54 cmol(+)kg⁻¹), very low to low exchangeable-Mg (0.27-0.58 cmol(+)kg⁻¹), low CEC (6.87-10.54 cmol(+)kg⁻¹), and low to moderate base saturation (23.34-54.35%). Fertilization recommendations for field A are Urea 420.36 kg/ha, SP-36 219.53 kg/ha, and KCl 162,5 kg/ha; field B are Urea 420.52 kg/ha, SP-36 242.05 kg/ha, and KCl 152,43 kg/ha; and field C are Urea 418.76 kg/ha, SP-36 230.11 kg/ha, and KCl 177,05 kg/ha Keyword: irrigation, Kembayan, soil chemistry, fertilization recommendations, rice field
Peranan Pupuk Kandang Ayam dan Arang Sekam Padi Terhadap Serapan Hara N, P, K dan Hasil pada Tanaman Tomat (Solanum Lycopersicum L.) di Tanah Ultisol Pratama, Andita Amlliya Ayu; Suswati, Denah; Hazriani, Rini
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol. 12 No. 1 (2026): Februari
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v12i1.106599

Abstract

Ultisol soil is a type of soil widely used for agricultural activities, but has major limitations in the form of acid soil reaction, low organic matter content and cation exchange capacity, and limited availability of macronutrients, which cause low plant productivity. Continuous efforts to improve soil quality are needed to increase fertilizer efficiency and crop yields. One alternative that can be applied is the use of organic matter as a soil ameliorant. This study aims to determine the effect of chicken manure and rice husk charcoal on the absorption of nitrogen (N), phosphorus (P), and potassium (K), as well as the yield of tomato plants (Solanum lycopersicum L.) on Ultisol soil. The study was conducted using a factorial Completely Randomized Design (CRD). The research was conducted using a Complete Randomized Design (CRD) with a factorial arrangement. The treatment factors consisted of chicken manure fertilizer (A) and rice husk charcoal (P). Data were analyzed using analysis of variance (ANOVA), and if significant differences were found, further tested with DMRT at the 5% level. The results showed that chicken manure significantly affected the absorption of N, P, and K as well as the biomass of tomato plants, while rice husk charcoal and the interaction of the two treatments did not significantly affect most of the observed parameters. Increasing the dose of chicken manure tends to increase nutrient absorption and crop yield This research provides a scientific contribution to the development of organic-based Ultisol soil management technology to increase crop productivity and support sustainable agricultural systems. Keyword: Chicken Manure; Nutrient Absorption; Rice Husk Charcoal; Tomato; Ultisols
Co-Authors Adrestianda, Endang Azzahra Afiza, Anisa Agus Sulistiyono Pramono, Agus Sulistiyono Agustine, Leony Alhaddad, Abdul Mujib Ali Akbar Alsyahdani, Daeng ari krisnohadi Asmahan Akhmad Asrifin Aspan Aspan Bambang Hendro Bambang Hendro Bambang Hendro Sunarminto Bambang Widiarso Bambang Widiarso bayu saputra Bayu Saputra Chandra, Tino Chandra, Tino O. cici, suci Didik Indradewa Didik Indradewa Didik Indradewa Dja’far Shiddieq Dja’far Shiddieq Dolorosa , Eva Donny Ardy, Donny Durani, Hidayat Eka Widiawati Wijaya Kusuma Enjela, Dea Septi Eny, Eny erlia, erlia erlia Eva Dolorosa Farah Diba Feira B. Arief Feira Budiarsyah Arief Fransisca, Adelia Irma Gita Aprianti, Gita Godefridus Delanova Panthera Boy Gunadi Gunadi Hadari Hadari Ismahan Umran Ismahan Umran Jamli Jamli Junaidi Junaidi Kurnia, Dikha Putra Kusuma, Eka Widiyawati Wijaya Kusumadewi, Yohana S Lia Tri Handayani M, Leony Agustine Manurung, Rinto Manurung, Rocky Oktavianus Markus, Dodi Mastur, Sulakhudin Maulana, Muhammad Kharis Maulidi Maulidi Monica, Natalia Agnes Muhammad Hatta Muhammad Hatta Murni, Sri Dewi Nafa A Permatasari Nandung Erlanda Nugroho, Ridho Satia NURANI, CATUR Nuriman, Muhammad Oktafiyana, Maria Perkasa, Aditya Pratama, Andita Amlliya Ayu Pratama, Muhammad Aldi Riduansyah Riduansyah, Riduansyah Rini Hazriani rini hazriani Rini Susana Rini Susana Rini Susana Rini, Hazriani RISTHA, FEBRIANTI Rita Hayati Romiyanto, Romiyanto Rusdiyanto, Rusdiyanto Rusdiyanto Rustom, Rustom Saeri Sagiman, Saeri Sari, Rizka Mawaddah Sempurna, Bayu Setiadi, Ade Shiddieq Shiddieq Shiddieq, Dja’far Shubhi, Muhammad Zamhar Auli Siti Maspuroh Subhi Subhi Suhandi, Logi Sulakhudin Mastur Sulakhudin Sulakhudin Sumarno . Sungkin, Feche Jeremia Suryanti, Tassa Ananda Sutarman Gafur Sutarman Gafur Sutomo Sutomo Tanti, Dwi Tino Orciny Candra Tino Orciny Chandra tri wahyuni Ulfia Fadilla Wulandari, Putri Selvira Yani Yani yani, Hudy Ari Yarlina Yacoub Yuni Lestari