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Rinto Manurung
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pedontropika@untan.ac.id
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Jl. Jendral Ahmad Yani Pontianak. Telp. (0561) 740191 Fax (0561) 740191
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INDONESIA
Jurnal Ilmu Tanah dan Sumber Daya Lahan
Published by Universitas Tanjungpura
ISSN : 2443101X     EISSN : 25799800     DOI : https://10.26418/pedontropika
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Research and study in soil science and other fields related, include : Soil physics and conservation Soil chemistry and fertility, Soil biology and biotechnology Clay mineralogy Plant nutrient Pedogenesis Geology and Mineralogy Soil survey and classification Soil reclamation and remediation Soil and Water Quality
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah
Articles 6 Documents
 1 
Search results for , issue "Vol 9, No 2 (2023): Agustus" : 6 Documents clear
Analisis Debit Aliran dan Muka Air Tanah pada Lahan Gambut Kebun Kelapa Sawit Rakyat di Kabupaten Kubu Raya Suryadi, Urai Edi
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 9, No 2 (2023): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v9i2.73744

Abstract

Development studies on peatlands relate to the issue of peat restoration with the 3R program, namely rewetting, revegetation and revitalization. This research has a long-term objective in the form of a model of the relationship between water flow discharge and water table depth in peatlands planted with oil palm. The research location is in the Kuala Dua Village area, Sei Raya District, Kubu Raya Regency, which is an area of peatland planted with community oil palm. The research method is a field survey with a grid system. The research implementation consists of determining the location and observation point, installing equipment, measuring the elevation of the observation point in the channel and on the ground surface, measuring the depth of the peat, and measuring the water level in the channel and groundwater level at the observation point, taking soil samples, measuring soil water content. field, Eh, and pH. Measurement of soil hydraulic conductivity at the observation point using the auger hole method. The research results show that the correlation between water flow discharge and water table depth in peat soil is moderate to very strong. The correlation between the rate of decrease in water level and the flow of water in peat soil is very strong. The reductive-oxidative atmosphere of the peat soil layer influences the maturity level, unit weight, total porosity, field water content, field capacity water content, oxidation-reduction potential (Eh), and soil reaction (pH).
Peranan Kombinasi Lumpur Merah dan Pupuk Kandang Ayam Terhadap Ketersediaan Hara N, P, K dan Pertumbuhan Tanaman Jagung di Tanah Pasir Pantai Pratama, Muhammad Aldi; Suswati, Denah; Umran, Ismahan
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 9, No 2 (2023): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v9i2.63072

Abstract

Jagung (Zea mays L.) merupakan komoditas penting di Kalimantan Barat sebagai komoditas pangan kedua setelah padi sebagai karbohidrat. Tanah pasir pantai merupakan lahan marginal dengan produktivitas yang rendah, dicirikan oleh bahan penyusun tanah yang dominan pasir, sehingga mengakibatkan ketersediaan unsur hara dalam tanah menjadi rendah. Penelitian ini bertujuan untuk mengetahui peranan kombinasi lumpur merah dan pupuk kandang ayam terhadap ketersediaan hara N, P, K dan pertumbuhan tanaman jagung di tanah pasir pantai. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 9 perlakuan dan 3 ulangan yaitu P1 (150g lumpur merah + 1.000g pupuk kandang ayam), P2 (150g lumpur merah + 2.000g pupuk kandang ayam), P3 (150g lumpur merah + 3.000g pupuk kandang ayam), P4 (300g lumpur merah + 1.000g pupuk kandang ayam), P5 (300g lumpur merah + 2.000g pupuk kandang ayam), P6 (300g lumpur merah + 3.000g pupuk kandang ayam), P7 (450g lumpur merah + 1.000g pupuk kandang ayam), P8 (450g lumpur merah + 2.000g pupuk kandang ayam) dan P9 (450g lumpur merah + 3.000g pupuk kandang ayam) sehingga terdapat 27 unit percobaan. Hasil penelitian menunjukkan bahwa perlakuan P6 (300g lumpur merah dan 3.000g pupuk kandang ayam) dapat meningkatkan pH tanah, karbon organik, nitrogen total, fosfor tersedia, dan kalium dapat ditukar, tinggi tanaman dan diameter batang sebesar 6,97% - 63,88%.
Evaluasi Status Kesuburan Tanah di Wilayah Desa Nanga Kebebu Kabupaten Melawi Hazriani, Rini
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 9, No 2 (2023): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v9i2.73745

Abstract

Evaluation of soil fertility status in Nanga Kebubu Village Melawi District aims to describe the soil fertility on agriculture land. Collecting data of research has done by the survey that consists of land physiology survey (based on interpretation of satellite imagery and the other secondary maps) and the survey where the observation site depends on field condition of the survey area. Furthermore, the identification of nutrient status parameters is according to temporary land map unit (SPT) that has been restricted based on slope class and soil type in Nanga Kebubu Village Melawi District. Every sampel of soil unit is composed 1 kg to analyzed that consist of parameters pH, organic C, total-N, available-P, K-dd, Al-dd, cation exchangeable capacity (CEC) and basa saturated. The results of survey showed that there were 2 soil mapping units (SPT) namely SPT 2 (Typic Dystrudept) and SPT 4 (Typic Sulfaquent). Results of analysis on each SPT showed 4,08 "“ 4,41 for pH, 2,36 "“ 3,49% for organic-C, 0,27 "“ 0,39% for total-N, 33,30 "“ 41,63 ppm for available P, 0,17 "“ 0,23 mg/100g for K-dd, 33,07 "“ 34,30% for Al saturated, 13,12 "“ 17,48 cmol (+)kg-1 for CEC and 13,09 "“ 7,77% for basa saturated. Based on soil fertility criteria for paddy and rubber tree, soil fertility status is low so that it needs to be improve by location-specific fertilizer.
Identifikasi Biochar yang Dibuat Dengan Lama Pirolisis yang Berbeda Sebagai Amelioran pada Tanah Gambut Indrawati, Urai Suci
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 9, No 2 (2023): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v9i2.73746

Abstract

One of the ameliorants that can be used to increase peat soil fertility is biochar. Biochar is a pyrolysis product, derived from burning biomass under conditions of limited or no oxygen. The aim of this experiment was to determine the characteristics of biochar from wood shavings (tatal) and coconut shells, which were heated at 350oC for 3 hours, 4 hours and 5 hours. From the analysis of lignin content, coconut shells are higher (45.20%) than tatal (25.74%), FITR Spectrophotometer results show that coconut shells pyrolyzed for 4 hours have fewer functional groups (8 types of functional groups with 3 aliphatic groups, 3 types aromatic group and 2 inorganic groups), compared to pyrolyzed tiles for 3 hours (9 groups and dominated by aromatic groups (5 types), then aliphatic groups (3 types) and inorganic groups (1 type)). Appearance of surface pores of 4 hour coconut shell biochar, with 1000x magnification, firm and regular in arrangement, macro and micro pore sizes smaller (3,677 µm; 3,688 µm; 5,091 µm) compared to pyrolyzed talc biochar for 3 hours (7,473 µm; 8,901 µm ). Coconut shell biochar has sturdy and neatly arranged pores, it is better as an ameliorant in peat soils compared to talc, because it can store carbon for a longer time. Tart has larger pores and collapses easily, so it rots easily.
Peranan Kombinasi Lumpur Merah dan Pupuk Kandang Ayam Terhadap Serapan Hara N, P, dan K Serta Hasil Tanaman Jagung di Tanah Gambut Perkasa, Aditya; Suswati, Denah; Umran, Ismahan
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 9, No 2 (2023): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v9i2.63063

Abstract

Jagung (Zea mays L.) merupakan komoditas penting di Kalimantan Barat,  sebagai komoditas pangan kedua setelah padi sebagai karbohidrat. Tanah gambut yang mudah tercuci mengakibatkan ketersediaan unsur hara dalam tanah menjadi rendah dan serapan hara pada tanaman rendah. Penelitian ini bertujuan untuk mengetahui peranan kombinasi lumpur merah dan pupuk kandang ayam terhadap serapan hara N, P, dan K, serta pertumbuhan tanaman jagung di tanah gambut. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 9 perlakuan yaitu, G1( 50 lumpur merah dan 500 pupuk kandang ayam g/polybag), G2 (50 lumpur merah dan 1.000 pupuk kandang ayam g/polybag), G3 (50 lumpur merah dan 1.500 pupuk kandang ayam g/polybag ) , G4 (100 lumpur merah dan 500 pupuk kandang ayam g/polybag), G5 (100 lumpur merah dan 1.000 pupuk kandang ayam g/polybag), G6 (100 lumpur merah dan 1.500 pupuk kandang ayam g/polybag), G7 (150 lumpur merah dan 500 pupuk kandang ayam g/polybag), G8 (150 lumpur merah dan 1.000 pupuk kandang ayam g/polybag), G9 (150 lumpur merah dan 1.500 pupuk kandang ayam g/polybag) dengan 3 ulangan, sehingga terdapat 27 polybag.  Hasil penelitian menunjukkan bahwa perlakuan G6 (100g lumpur merah dan 1.500g pupuk kandang ayam) dapat meningkatkan pH tanah, berat kering tanaman serapan hara N, P dan K, berat pipil jagung dan berat pipil per tanaman sebesar 4,09%-43,12%.
Studi Bakteri Pendegradasi Fenol pada Lapisan Acrotelm dan Catotelm Di Hutan Rawa Gambut Handayani, Wiji Pamungkas; Anshari, Gusti Zakaria; Indrawati, Urai Suci Yulies Vitri
Pedontropika: Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 9, No 2 (2023): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v9i2.63974

Abstract

Peat soils are formed from woody materials which generally contain a lot of lignocellulosic organic  compounds such as lignin which in the degradation process produces reactive carboxyl groups and  phenolic  compounds.  Degradation  of  phenolic  compounds  can  be  carried  out  enzymatically  by  phenol-  degrading bacteria. The purpose  of this study was to compare the number  of  bacterial colonies  degrading phenolic compounds in the acrotelic and catotelm layers in the upstream and downstream  locations of the peat swamp forest in Permata Village, Terentang District, Kubu Raya Regency. Soil  samples were taken in 2 plots (upstream and downstream from the canal blocking) at a distance of 500  meters using a peat drill. Each plot was then taken 3 drill points to form a triangular pattern with a  distance of 30 meters with a peat depth level (Acrotelm) 0-10 cm, 10-20 cm and peat depth (Catotelm)  300-310 cm, 310-320 cm. Bacterial colonies were counted using the Total Plate Count method on  Mineral Salt Medium and pure phenol selective media. Total phenolic compounds in peatlands were  tested using 10% Folin-Ciocalteu solution and 2% Na2CO3. The number of bacterial colonies at  locations  upstream  from  the  canal  blocking  in  the  acrotelmic  layer  is  0-10  cm  deep  (7,5x104  cfu/gr)  and  10-20 cm deep (8,8x104  cfu/g), while bacteria in the catotelm layer are 300-310 cm deep (2,1x104  cfu/gr)  and  a  depth  of  310-320  cm  (2,2x104  cfu/gr).  The  number  of  bacterial  colonies  downstream  from  the canal blocking in the acrotelm layer at a depth of 0-10 cm (2,3x104  cfu/gr) and at a depth of 10-20  cm (3,1x104  cfu/gr), while bacteria in the catotelm layer at a depth of 300-310 (1,7x104  cfu/g) and a  depth  of  310-320 cm  (1,6x104  cfu/g).

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