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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) MEDIA KONSERVASI Forum Pasca Sarjana Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Biospecies Reaktor Bioma : Berkala Ilmiah Biologi SAINS DAN MATEMATIKA Jurnal Ilmu Lingkungan Jurnal Natur Indonesia Ganendra: Majalah IPTEK Nuklir Jurnal Ilmiah Aplikasi Isotop Radiasi Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Jurnal Sosial Ekonomi Pertanian Jurnal Agro Teknologi Tropika Indonesian Journal of Agricultural Science Jurnal Hortikultura Jurnal Agro Ekonomi Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Sumberdaya Lahan Buletin Penelitian Tanaman Rempah dan Obat JTSL (Jurnal Tanah dan Sumberdaya Lahan) Wacana, Jurnal Sosial dan Humaniora Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Solum Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Planta Tropika Jurnal Tataloka MAJALAH ILMIAH GLOBE SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Penelitian Pertanian Tanaman Pangan Journal of Regional and Rural Development Planning Jurnal Penelitian Kelapa Sawit EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup JURNAL PANGAN Jurnal Agro Ekonomi Buletin Penelitian Tanaman Rempah dan Obat Jurnal Sumberdaya Lahan Jurnal Tanah dan Iklim
Atang Sutandi
Departemen Ilmu Tanah Dan Sumber Daya Lahan, Fakultas Pertanian Institut Pertanian Bogor, Jl. Meranti Kampus IPB Dramaga Bogor 16680
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Estimation of the Potential Carbon Emission from Acrotelmic and Catotelmic Peats Nurzakiah, Siti; Sabiham, Supiandi; Nugroho, Budi; Nursyamsi, Dedi
JOURNAL OF TROPICAL SOILS Vol. 19 No. 2: May 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i2.81-89

Abstract

Agricultural development on peatland in Indonesia has been constrained by the presence of environment issues in relation to the release of greenhouse gases (GHGs) particularly carbon dioxide (CO2) and methane (CH4) to the atmosphere. This study was aimed to predict the potential carbon emission based on carbon stocks in acrotelmic and catotelmic peats with the reference of groundwater level of peatland.  The results showed that groundwater levels have played an important  role  in  carbon  release, which  has  close  relationship  with  water  regime  of  the upper  layer  of  peats  that influenced by oxidative and reductive conditions of the land.  From the layer that having groundwater level fluctuations during the period from rainy to dry season (acrotelmic peat), the emissions were mostly dominated by CO2 release, while from permanent reductive-layer (catotelmic peat) was not detected.  The decrease of groundwater level from -49.6 to -109 cm has clearly influenced carbon emission.  From each decreasing 1.0 cm groundwater level, CO2 emission measured during the period of February - October 2013 was calculated to yield about 0.37 Mg ha-1 yr-1.Keywords: Acrotelmic and catotelmic peat, carbon emission, groundwater level [How to Cite: Siti N, S Sabiham, B Nugroho and Di Nursyamsi. 2014. Estimation of the Potential Carbon Emission from Acrotelmic and Catotelmic Peats. J Trop Soils 19(2): 91-99. Doi: 10.5400/jts.2014.19.2.91]    
Determination of the Best Potassium Extraction Method for Tomato (Solanum lycopersicum L.) on Andisols Gunawan, Endang; Susila, Anas D.; Sutandi, Atang; Santosa, Edi
Jurnal Hortikultura Indonesia (JHI) Vol. 10 No. 3 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.856 KB) | DOI: 10.29244/jhi.10.3.173-181

Abstract

Penetapan rekomendasi dosis kalium (K) berdasarkan uji tanah untuk tanaman tomat pada tanah Andisol belum banyak dikaji di Indonesia. Penelitian diawali dengan pembuatan status hara K tanah di Kebun Percobaan IPB Pasirsarongge Cianjur dilanjutkan dengan uji korelasi di rumah plastik PKHT IPB Tajur Bogor pada Desember 2015 sampai Mei 2016. Tujuan penelitian adalah menetapkan metode ekstraksi K terbaik bagi tanaman tomat di tanah Andisol. Status K tanah dibuat dengan larutan kalium sulfat (K2SO4) sebesar 0, ¼X, ½X, ¾X, dan X dimana X adalah 413.4 kg K ha-1 sebagai dosis K maksimum yang ditambahkan untuk mencapai kadar K maksimum dalam larutan tanah. Larutan K2SO4 disiram merata pada bedengan tanah dan diinkubasi selama 4 bulan. Ekstraksi K tanah menggunakan 5 metode yaitu: Bray 1 (HCl 5N), HCl 25%, Morgan Wolf (NaC2H3O2.3H2O), Mechlich (HCl 0.05N + H2SO4 0.025N) dan NH4OAc (NH4OAc, pH 7). Hasil penelitian menunjukkan adanya perbedaan respon tinggi tanaman, bobot kering biomas, kandungan K tanaman terhadap tingkat status hara K tanah. Pola respon kuadratik ditunjukkan pada tinggi tanaman umur 6 dan 7 minggu setelah tanam, dan bobot kering total. Metode ekstraksi K Andisols terbaik untuk tomat adalah NH4OAc dengan nilai koefisien korelasi (r): 0.75. Kata kunci: biomas, K2SO4, metode ekstraksi, NH4Oac, status K
Fluks Metana dan Karakteristik Tanah pada Beberapa Macam Sistem Budidaya Suprihati, ,; Anas, Iswandi; Sabiham, Supiandi; Djajakirana, Gunawan
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 3 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (59.427 KB) | DOI: 10.24831/jai.v34i3.1299

Abstract

Methane (CH4) is an important greenhouse gas that has a high heat trapping capacity thus potentially contribute to the global-warming.  Agriculture is considered among the responsible emission sources of CH4. Relationship among soil characteristics, soil microbes, and CH4 flux is very important in understanding the mechanism involved in the mitigation effects of certain agriculture practices. Results of this research showed that rice field produced the highest CH4 flux (7.4976 ± 0.5299 mg CH4-C m-2 h-1, n=3), while vegetable, sweet potato, yam bean and corn cropping produced lower CH4 flux (-0.7708 ± 0.6434 to 0.4605 ± 0.5255 mg CH4-C m-2 h-1, n=3). Nitrifier population among cropping systems was 3.13x103 to 3.17x104  MPN g-1 soil (dry weight), while denitrifier population was 3.77x103 to 1.17x105 MPN g-1 soil (dry weight).  There were no specific dominance proportion of nitrosomonas, nitrobacter, denitrifier and total propagule among cropping systems. The CH4 flux had highly correlation to soil water content (r = 0.951), soil pH (r = 0.852) and soil Eh (r = -0.982). Denitrifier had significantly correlation to soil pH (r = -0.635) and soil ammonium content (r =  -0.681).   Key words :  CH4 flux, cropping system, soil characteristic, soil microbes
Efisiensi Serapan Hara dan Hasil Padi pada Budidaya SRI di Persawahan Pasang Surut dengan Menggunakan Kompos Diperkaya Razie, Fakhrur; Anas, Iswandi; Sutandi, Atang; Sugiyanta, ,; Gunarto, Lukman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 41 No. 2 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.378 KB) | DOI: 10.24831/jai.v41i2.7509

Abstract

There are two main problems when system of rice intensification (SRI) cultivation is carried out at tidal areas, e.g. the presence of Fe which is potentially toxic to plants and low nutrients availability. Utilization of Azotobacter-enriched compost is a choice to overcome iron toxicity as well a source of nutrients. The aims of this research were to study the effect of Azotobacter enriched compost to reduce the rates of inorganic fertilizers applied, to increase the efficiency of N, P, and K uptake, and to increase plant growth and yield. Two rice cultivation methods were applied namely SRI and conventional rice cultivation methods on tidal lands (rice fields) of South Kalimantan. A completely randomized block design with two factors was applied. The main plots were SRI and conventional rice cultivation, and as subplots were eight types of fertilizer that is a combination between Azotobacter-enriched compost with inorganic fertilizers rates. The results showed that soil nutrient availability, uptake and efficiency of N, P, and K with SRI technique was higher than conventional cultivation. Azotobacter- enriched compost on the tidal land (rice fields) could reduce the use of N and K fertilizer by 25%. Furthermore, the efficiency of N and P uptake in enriched compost with 75% of fertilizer N, P, and K were not different with enriched compost with 75% of fertilizer. Ciherang rice yields with SRI cultivation was approximately 22% higher compared to that from conventional rice cultivation. Keywords: Azotobacter-enriched compost, conventional rice cultivation, inorganic fertizers
Identification of factors that influence carbon emissions in tropical peatland Yahya, Vanda Julita; Sabiham, Supiandi; Pramudya, Bambang; Las, Irsal
Biospecies Vol. 12 No. 2 (2019): Juli 2019
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.871 KB) | DOI: 10.22437/biospecies.v12i2.5319

Abstract

Abstract. The research aimed to find out the relationship between water table and soil as well as the influence of chemical (peat water content, pH) and physical (cation exchange capacity = KTK) factors on CO2 emission. The research used simple mathematic analysis using secondary data. The research was conducted in oil palm plantation in Koto Gasib districk, Siak Regency, Riau. Objects researched were water table level, rainfall and peatland chemical-physical factors in oil palm plantation. Research result indicated that rainfall and days of rain had linear relationship with water table level. Water table level contributed 71.48% to GRK emission and the remaining 28.52% was influenced by other factors. Peatland pH contributed 91.41% to emission, and the remaining 8.59% was influenced by other factors. The influence of KTK on emission was 88.66 % and the remaining 11.34% was influenced by other factors. Water content of peatland had influence on GRK emission of 96.19% and the remaining 3.81 % was influenced by other factors. Conclusion: water table level, water content, pH, and KTK had significant influence on CO2 emission. Research result shows that water content has the biggest influence on CO2 release compare to water table, KTK and pH.
Enzyme Activity in Relation to Total K, CA, MG, Fe, CU and Zn in the Oil Palm Rhizosphere of Riau’s Peatlands, Indonesia Harianti, Mimien; Sutandi, Atang; Saraswati, Rasti; Maswar, Maswar; Sabiham, Supiandi
BIOTROPIA Vol. 25 No. 3 (2018): BIOTROPIA Vol. 25 No. 3 December 2018
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2018.25.3.862

Abstract

Enzyme activity can be used as an indicator of peat decomposition in the oil palm rhizosphere of peatlands. Oil palm plantation management requires fertilization in the rhizosphere to provide nutrients for oil palm growth. The state of total nutrients in the rhizosphere can influence enzyme activity. This research aimed to study enzyme activity in relation to nutrient content in the oil palm rhizosphere of peatlands. Using the explorative method in Riau's tropical peatlands, an oil palm plantation was chosen as the main site, and a degraded forest as well as a shrubland were chosen as comparison sites. In the oil palm plantation, peat samples were taken from peat adhering to oil palm roots at depths of 0–25 and 25–50 cm and at distances of 0–1, 1–2, 2–3, and 3–4 m from the trees. In the degraded forest and shrubland, samples were taken from selected plant roots at depths of 0–25 and 25–50 cm. The triplicate peat samples were then composited for analysis of enzyme activity and total nutrient content. Results showed that enzyme activity (urease, phosphatase, β-glucosidase, and laccase) in the oil palm rhizosphere decreased as the distance from trees and the depth of the rhizosphere increased. The decline in enzyme activity was caused by low peat pH and increased water content as well as organic carbon content. Enzyme activity increased with increasing oil palm age and ash content. Total K and Zn contents showed no correlation with enzyme activities. However, total Ca and Mg contents showed a positive correlation only with β-glucosidase activity. Total Fe and Cu contents showed a significantly negative correlation with enzyme activities (urease, phosphatase, β-glucosidase, and laccase). Enzyme activity in the rhizosphere of the degraded forest and shrubland was mostly lower than in the oil palm rhizosphere.
Enzyme Activity in Relation to Total K, CA, MG, Fe, CU and Zn in the Oil Palm Rhizosphere of Riau’s Peatlands, Indonesia Harianti, Mimien; Sutandi, Atang; Saraswati, Rasti; Maswar, Maswar; Sabiham, Supiandi
BIOTROPIA Vol. 25 No. 3 (2018): BIOTROPIA Vol. 25 No. 3 December 2018
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2018.25.3.862

Abstract

Enzyme activity can be used as an indicator of peat decomposition in the oil palm rhizosphere of peatlands. Oil palm plantation management requires fertilization in the rhizosphere to provide nutrients for oil palm growth. The state of total nutrients in the rhizosphere can influence enzyme activity. This research aimed to study enzyme activity in relation to nutrient content in the oil palm rhizosphere of peatlands. Using the explorative method in Riau's tropical peatlands, an oil palm plantation was chosen as the main site, and a degraded forest as well as a shrubland were chosen as comparison sites. In the oil palm plantation, peat samples were taken from peat adhering to oil palm roots at depths of 0–25 and 25–50 cm and at distances of 0–1, 1–2, 2–3, and 3–4 m from the trees. In the degraded forest and shrubland, samples were taken from selected plant roots at depths of 0–25 and 25–50 cm. The triplicate peat samples were then composited for analysis of enzyme activity and total nutrient content. Results showed that enzyme activity (urease, phosphatase, β-glucosidase, and laccase) in the oil palm rhizosphere decreased as the distance from trees and the depth of the rhizosphere increased. The decline in enzyme activity was caused by low peat pH and increased water content as well as organic carbon content. Enzyme activity increased with increasing oil palm age and ash content. Total K and Zn contents showed no correlation with enzyme activities. However, total Ca and Mg contents showed a positive correlation only with β-glucosidase activity. Total Fe and Cu contents showed a significantly negative correlation with enzyme activities (urease, phosphatase, β-glucosidase, and laccase). Enzyme activity in the rhizosphere of the degraded forest and shrubland was mostly lower than in the oil palm rhizosphere.
Co-Authors , Suprihati -, Bachtiar -, Manuwoto . ACHMADI . NURWADJEDI . Suwarno A.A. Ketut Agung Cahyawan W Abdul Hasyim Sodiq Abdul Rachim Abdurrani Muin Adhy Ardiyanto Agung Lukman Agus Sofyan Alce Ilona Noyaa Anas D Susila Anas D Susila Anas D. Susila Anas Dinurrohman Susila Andrea Emma Pravitasari, Andrea Emma Anggi Nico Flatian, SP Aris Poniman Baba Barus Bachtiar Bachtiar Bambang Paramudya Bambang Pramudya Bambang S Purwoko Bandung Sahari Bandung Sahari BANDUNG SAHARI Bargowo Addianto Bariot Hafif Bariot Hafif Bariot Hafifa Basuki Sumawinata Bayu Sejati Boedi Tjahjono Budi Mulyanto Budi Nugroho Budi Nugroho Darmono Taniwiryono Darmono Taniwiryono Dedi Nursyamsi Dedi Nursyamsi Desi Nadalia Didy Sopandie Djoko Purnomo DWI ANDREAS SANTOSA Dwi Guntoro Edi Santosa Edwin Hidayat, Edwin Edy Djauhari Purwakusumah Eko Noviandi Ginting Endang Gunawan Endang Suhendang Enni Dwi Wahjunie Fahmi Arief Rahman Fahmuddin Agus Fakhrur Razie Fakhrur Razie Ganjar Priadi Gunawan Djajakirana Hadijah Siregar Handayani, Etik Puji Happy Widiastuti Happy Widiastuti Harianti, Mimien Hartono, Arif Hendri Purnama Herison, Catur Hermanto Hermanto Heru B. Pulunggono Heru Bagus Pulunggono Husni Mubarok Husni Mubarok Husni Mubarok Husni Mubarok I Nyoman Sujana I Wayan Mangku I Wayan Rusastra Ibnul Qoyim, Ibnul Idris, Kamarudin Idris, Komaruddin Ilona Noyaa, Alce Indarti Puji Lestari Indriyati, Lilik Tri Irawati, Arfi Irdika Mansur Irsal Las Irsal Las Ishak Ishak Ishak Ishak Ishak Ishak Iswandi Anas Iswandi anas Iswandi Anas Iswandi Anas Iswandi Anas Iswandi Anas Ivanocih Agusta Ivanovich Agusta J. Sri Adiningsih K Kasmadi Kasmadi Kasmadi Kasmadi Kasmadi Khursatul Munibah Komarsa Gandasasmita Komarsa Gandasasmita Komaruddin Idris Komarudin Idris KOMARUDIN IDRIS Kukuh Murtilaksono Kusuma Handayani L. K. Darusman Latifah K. Darusman Latifah Kosim Darusman LATIFAH KOSIM DARUSMAN Lina Lathifah Nurazizah Lina Lathifah Nurazizah Luh Putu Ratna Sundari Lukman Gunarto Luthfi Izhar M. ALWI Machfud Machfud Manuwoto - MARIA BINTANG Maryadi Maryadi Maryadi Maryadi Maswar Maswar Maswar Maswar Maya Melati Meine van Noordwijk Meine Van Noordwijk Meine Van Noordwijk Miftahudin . Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Mohamad Rafi Muchammad Sri Saeni Muhadiono Muhadiono, Muhadiono Muhammad Amir Solihin Muhammad Amir Solihin Muhammad Ardiansyah muhammad Firdaus Muhammad Thamrin Muhammad Zulfikar Muliana Mulyawan, Ronny Munif Ghulamahdi Muya Avicienna Nabila Hanifah Natalia, Rina Nelvia Nelvia nFN Thamrin NISA RACHMANIA MUBARIK Nizam Tambusai Nizam Tambusai Novia Mustikasari Nurliani Bermawie Ohiwal, Morgan Oteng Haridjaja Paulus B.K. Santoso Priyo Cahyono Priyo Cahyono, Priyo R. Purnamayani Rachim, Djunaedi Abdul RACHMI WIDIRIANI RAHAYU WIDYASTUTI Rasti Saraswati Retno Wijayanti Rika Andriati Sukma Dewi Rina Natalia Rury Kurniawan Ruslan - Rykson Situmorang S Susanto S. Anwar S. HADI SUTJAHJO Saeful Anwar Saeni, Muchammad Sri Safira Sukma Hanjani Sandra Arifin Aziz Santun R. P. Sitorus Santun R.P Sitorus Santun R.P. Sitorus Santun Risma Pandapotan Sitorus Santun Risma Pandepotan Sitorus Septiyana, . SETIARI MARWANTO Siska Nofita Siswanto Siswanto Siswanto Sisworo, Widjang Herry Siti Maryam Harahap Siti Maryam Harahap Siti Nurzakiah Siti Nurzakiah Siti Nurzakiah Sri Djuniwati Sri Djuniwati Sri Juniwati Sri Nico Djuniwati Sri Widodo Agung Suedy Sri Wilarso Budi Sudarsono Sudarsono . Sugiyanta Sukarman Sukarman Sumardjo Supiandi Sabiham Suria Darma Tarigan Surjono H. Sutjahjo Susanto, Bambang Sutjahjo, Surjono H. Suwondo Suwondo Suyamto Suyamto Suyamto Suyamto Suyamto Suyamto Syaiful Anwar Syaiful Anwar Syamsul Arifin Syva Fitriana Taopik Ridwan TATI NURHAYATI Taufiq Bachtiar Taufiq Bachtiar Thamrin, nFN Toyip Toyip Untung Sudadi W. Hartatik Widiatmaka Yadi Setiadi Yahya, Vanda Julita