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Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment)
Published by Institut Pertanian Bogor
ISSN : 14107333     EISSN : 25492853     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Jurnal Ilmu Tanah dan Lingkungan merupakan media yang menyajikan artikel mengenai hasil penelitian dan telaah perkembangan mutakhir dalam bidang ilmu tanah, air, dan ilmu lingkungan sebagai bahan kajian utama.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah
Articles 5 Documents
 1 
Search results for , issue "Vol 3 No 2 (2000): Jurnal Ilmu Tanah dan Lingkungan" : 5 Documents clear
Effect of oIntermittent Drainage and Fertilization on pH, Eh, Fe, and Mn at New Paddy Soil in Ultisols of Bandar Abung (Lampung) and Tapin (South Kalimantan) Dedi Nursyamsi; Mangku E Suryadi
Jurnal Ilmu Tanah dan Lingkungan Vol 3 No 2 (2000): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5485.161 KB) | DOI: 10.29244/jitl.3.2.8-17

Abstract

To study the effect of intermittent drainage and fertilization on new paddy soil of pH, Eh, Fe,and Mn, laboratory experiment was conducted using Ultisol of Bandar Abung, Larnpung and Tapin,South Kalimantan. Experiment was carried out using Completely Randomized Block Design with 5treatments and 3 replications. The treatments consist of control, organic matter (rice straw) 5,000kg/ha, KzSOI 100 kgha, dolomite SO0 k p a and intermittent drainage. In the drainage treatment thesoil was drained on the 3d, 5th, 7th, 12 , 14'~a~nd 1 6 w~e ek for 7 days respectively. The resultsshowed that intermittent drainage did not affed soil pH, increased soil Eh, decreased soil and water Fe II, and concentration of Mn II in flooded water in both Ultisols of Bandar Abung and Tapin. Organic matter did not affed soil pH, decreased soil Eh, increased soil and water Fe II and concentrattion of Mn II in flooded water in both UAisols of Bandar Abung and Tapin. The higher the soil Fe dithionit andDTPA in the soils caused higher risk in Fe toxicity.
Analisis Resiko Lingkungan Tanaman Transgenik (Environmental Risk Assessment on Transgenic Plants) Dwi Andreas Santosa
Jurnal Ilmu Tanah dan Lingkungan Vol 3 No 2 (2000): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (860.639 KB) | DOI: 10.29244/jitl.3.2.32-36

Abstract

Tanaman transgenik merupakan fenomena baru di bidang pertanian saat ini. Tanaman tersebut telah menimbulkan pendapat pro maupun kontra yang luas baik di kalanganilmuwan maupun di masyarakat. Hingga saat ini belum pemah ada uji komprenhensif mengenai pengaruh tanaman transgenik terhadap lingkungan di wilayah tropika. Tidak adanya referensi di satu sisi menyulitkan peneliti untuk menganalisis pengaruh tanaman transgenik di wilayah tropis, sedangkan di sisi lain justrumenjadi tantangan luar biasa bagi peneliti Indonesia untuk mengembangkan metodologi analisis resiko lingkungan tanaman transgenik yang sesuai dengan kondisi lingkungan di Indonesia.
Characteristic of Soil Physical Properties Derived from Pyritic-Contained Sediment of Musi Banyuasin as by Affected by Drying Treatment Kukuh Murtilaksono; Sudarmo .; Susila Herlambang; Sjarif .
Jurnal Ilmu Tanah dan Lingkungan Vol 3 No 2 (2000): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (766.909 KB) | DOI: 10.29244/jitl.3.2.18-23

Abstract

Greenhouse and laboratory research at the Department of Soil Science, Faculty of Agriculture IPB has been conducted about treatment of drying on acid sulphate soil coloum from Musi Banyuasin to examine the effect on soil physical properties. Soil coloum of 95 cm height is maintained submerged, aside from other soil coloums drained at 50 cm and 75 cm depth are drying treatment of 2, 4, 6, and 8 weeks. Drying treatment at 75 cm depth lowering soil surface 0.8 and 2.9 crn at the firstand eighth week of drying, respectively. The soil subsidence is affected by organic matter decomposition and swelling - shrinkage characteristic of 2:1 clay mineral. Drying treatmentsignificantly increasing aggregate stability from 54.69 to 57.19 at 15 cm depth, decreasing it from 57.29 to 51.19 at 45 cm depth at sixth week, and 49.59 to 45.82 at 75 cm depth at fourth week.Although the result has irregular pattern, drying treatment significantly increasing soil bulk density at 15 an depth from 0.83 to 0.95 glcm3, decpasing at 45 cm depth from 0.69 to 0.45 glcm3at sixth week, and increasing from 0.63 to 0.72 g/cm at 75 cm depth at fourth week. The incremental anddecreasing is more caused by organic matter decomposition and soil aggregate sementation by iron resulted from pyrite oxidation. Drying treatment significantly affecting soil porosity, permeability and COLE at several depth, atthough the pattern is irregular.
Characterization of Phenol Degrading Bacteria from Buntal Lake of Central Kalimantan Nursaadah .; Dwi Andreas Santosa; Maggy T Suhartono
Jurnal Ilmu Tanah dan Lingkungan Vol 3 No 2 (2000): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1135.116 KB) | DOI: 10.29244/jitl.3.2.24-31

Abstract

Three bacterial isolates (ICBB 1168, ICBB 1169, ICBB 1170), being capable to utilizing phenol as sole carbon and energy source, were isolated from Buntal Lake of Central Kalimantan. Growth of all isolates were optimum at 37OC. Optimum pH for growth and phenol degradation of ICBB 1168, lCBB 1169, and ICBB 1170 were 7-8, 6, and 6-7, respectively. Among the isolates, ICBB 1170 showed best phenol degrading activity. ICBB 1170 able to degrade 16 mM phenol to 0.71 mM in 4days. Phenol degradation ability of ICBB 1170 could be increased by adding 0.01-0.1% yeast extract. Addition of 0.05-0.1% glucose in medium inhibited phenol degradation by ICBB 1170. Cell-free extracts of ICBB 1170 had specific activity 2.92 Ulmg. Degradation of benzoate by ICBB 1170 wasstudied. However, the ability to degrade phenol were higher than that of benzoate.
Changes in Phosphorus Fractions on an Acidic Soil Induced by Phosphorus Fertilizer, Organic Matter and Lime A Hartono; P.L.G. Vlek; A Moawad; A Rachim
Jurnal Ilmu Tanah dan Lingkungan Vol 3 No 2 (2000): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (759.811 KB) | DOI: 10.29244/jitl.3.2.1-7

Abstract

One month of incubation experiment was implemented to evaluate the changes of phosphorus fraction in inorganic P (Pi) and organic P (Po) induced by phosphorus fertilizer (KH2P04),cow manure ( manure) and CaC03 (lime). A 0.5 kg oven-dried weight of arable layers of Latosol from Darmaga, Bogor was used in this study. The rates of manure were 0, 12.5 and 25 ffha, lime were 0, 1, 3 times the CaC03 equivalent required to neutralize exchangeable aluminum amounting to 0, 3.01, 9.03 t/ha respectively and the rates of phosphorus fertilizer in KH2P04 were 0, 40 and 80 kg Plha. All treatments increased resin-Pi (biologically available P). Application of phosphorus fertilizer also increased NaHC03-Pi which is also included as biologically available PI whi!e manure and lime only tended to increase this fraction. Phosphorus fertilizer and manure application were able to enhance NaOH-Pi (moderately resistant P related to AI-P and Fe-P ) but lime did not affect it.Phosphorus fertilizer, manure and lime increased HCI-Pi (moderately resistant P related to Ca-P).The changes of NaHC03-Pi to resin-Pi and P immobilization by microorganism, which was indicated by the increase of NaHCOrPo (readily mineralizable), can be attributed to the decrease of NaHC03- Pi. The increase of NaOH-Pi by phosphorus fertilizer and manure indicated that the complexation of P fixation sites by PO6 and organic acids likely had occurred.

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