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All Journal Indonesian Journal of Agricultural Science JURNAL BIOLOGI INDONESIA
A. Wihardjaka
Balai Penelitian Lingkungan Pertanian Jl. Jakenan-Jaken Km 5 Jaken Pati 59182 Jawa Tengah
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Journal : JURNAL BIOLOGI INDONESIA

 1 
Emisi Gas Dinitrogen Oksida dari Tanah Sawah Tadah Hujan yang diberi Jerami Padi dan Bahan Penghambat Nitrifikasi Wihardjaka, A.
JURNAL BIOLOGI INDONESIA Vol 6, No 2 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.286 KB) | DOI: 10.14203/jbi.v6i2.3160

Abstract

ABSTRACTNitrous Oxide Emission from Rainfed Lowland Rice Soils through Applications of Rice Strawand Nitrification Inhibitor Materials. Alternate wet-dry of soil condition under rainfed lowlandsystem influence on source and sink dynamics of green house gases. Lowland rice soil is oneof antropogenic sources of nitrous oxide (N2O) emission produced by microbiologicalnitrification-denitrification mediated processes. Attempt to increase soil productivity in lowlandrice system by organic amendment is predicted to stimulate nitrous oxide production. Theincrease of N2O production in lowland rice could be suppressed by using nitrification inhibitormaterials. A field experiment was conducted in rainfed lowland rice during 2009 dry season. Theobjective was to study interaction of rice straw application and nitrification inhibitor materialson nitrous oxide emission from rainfed lowland rice. Experiment was arranged using factorialrandomizes block design with three replicates and treatment of rice straw application (withoutrice straw, fresh straw, composting straw) and inhibitor nitrification materials (without inhibitornitrification, neemcake, carbofuran). Interaction of rice straw and nitrification inhibitor materialsdecreased significantly N2O emission from lowland rice soil. Nitrous oxide emission in plotwithout rice straw was higher than in plot treated with neither fresh rice straw nor compostingstraw. Application neemcake combined with composting straw emitted lowest nitrous oxidewith flux of 72 g N2O ha-1 season-1, whereas the highest N2O emission was found in plot withoutnitrification inhibitor materials and rice straw with flux of 454 g N2O ha-1 season-1. Comparedwith treatment of without nitrification inhibitor, application of neemcake and carbofuran couldsuppress nitrous oxide emission of 48.6 and 41.3 %, respectively.Key words : nitrous oxide emission, rainfed lowland, rice straw, nitrification inhibitors
Methane Emisions from Some Rice Cultivars in Rainfed Rice Field Wihardjaka, A.
JURNAL BIOLOGI INDONESIA Vol 4, No 3 (2007): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v4i3.3259

Abstract

AbstrakEmisi Gas Metana pada beberapa Varitas Padi di Lahan Sawah Tadah Hujan.Keragaman emisi gas metana dipengaruhi oleh karakteristik pada varitas tanaman padiyang berbeda umur, sifat, dan aktivitas sistim perakarannya. Penelitian lapang dilaksanakandi lahan sawah tadah hujan pada musim penghujan 200312004 dengan tujuan untukmengetahui emisi gas metana dari beberapavaritas padi unggul yang dibudidayakan secaragogorancah dan untukmengetahui varitas tertentu yangmampu mengemisi metana rendahsekaligus memberikan hasil gabah tinggi. Percobaan disnsun menggunakan rancanganacak kelompok dengan 3 ulangan pada 7 varitas padi, yaitu IR64, Cisantana, Sintanur,,Way Apoburu, Dodokan, Silugonggo, Mentik (varitas lokal). Pengambilan contoh gas dilapangan dilakukan dengan sungkup dan contoh gas diinjeksikan ke alat kromatografigas dengan detektor FID untuk menetapkan fluks metana. Hasil penelitian menunjukkanbahwa emisi gas CH, dari tanaman padi varitas Way Apobum < Dodokan < Silugonggo< Cisantana < Sintanur < lokd Mentik < IR64. Potensi daya hail varitas lokal Mentiklebih rendah daripada IR 64 dan IR 64 lebiirendah daripada varitas Silugonggo, Cisantana,Way Apoburu, Dodokan, dan Sintanur. Varitas Way Apoburu yang dibudidayakan dengansistem gogorancah mengemisi gas metana paling sediit dan memberikan hasil gabahpaling tinggi.Kata kunci : Emisi metana, varitas padi, sawah tadah hujan
METHANE EMISIONS FROM SOME RICE CULTIVARS IN RAINFED RICE FIELD Wihardjaka, A.
JURNAL BIOLOGI INDONESIA Vol 4, No 3 (2007): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v4i3.3259

Abstract

AbstrakEmisi Gas Metana pada beberapa Varitas Padi di Lahan Sawah Tadah Hujan.Keragaman emisi gas metana dipengaruhi oleh karakteristik pada varitas tanaman padiyang berbeda umur, sifat, dan aktivitas sistim perakarannya. Penelitian lapang dilaksanakandi lahan sawah tadah hujan pada musim penghujan 200312004 dengan tujuan untukmengetahui emisi gas metana dari beberapavaritas padi unggul yang dibudidayakan secaragogorancah dan untukmengetahui varitas tertentu yangmampu mengemisi metana rendahsekaligus memberikan hasil gabah tinggi. Percobaan disnsun menggunakan rancanganacak kelompok dengan 3 ulangan pada 7 varitas padi, yaitu IR64, Cisantana, Sintanur,,Way Apoburu, Dodokan, Silugonggo, Mentik (varitas lokal). Pengambilan contoh gas dilapangan dilakukan dengan sungkup dan contoh gas diinjeksikan ke alat kromatografigas dengan detektor FID untuk menetapkan fluks metana. Hasil penelitian menunjukkanbahwa emisi gas CH, dari tanaman padi varitas Way Apobum < Dodokan < Silugonggo< Cisantana < Sintanur < lokd Mentik < IR64. Potensi daya hail varitas lokal Mentiklebih rendah daripada IR 64 dan IR 64 lebiirendah daripada varitas Silugonggo, Cisantana,Way Apoburu, Dodokan, dan Sintanur. Varitas Way Apoburu yang dibudidayakan dengansistem gogorancah mengemisi gas metana paling sediit dan memberikan hasil gabahpaling tinggi.Kata kunci : Emisi metana, varitas padi, sawah tadah hujan
EMISI GAS DINITROGEN OKSIDA DARI TANAH SAWAH TADAH HUJAN YANG DIBERI JERAMI PADI DAN BAHAN PENGHAMBAT NITRIFIKASI Wihardjaka, A.
JURNAL BIOLOGI INDONESIA Vol 6, No 2 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i2.3160

Abstract

ABSTRACTNitrous Oxide Emission from Rainfed Lowland Rice Soils through Applications of Rice Strawand Nitrification Inhibitor Materials. Alternate wet-dry of soil condition under rainfed lowlandsystem influence on source and sink dynamics of green house gases. Lowland rice soil is oneof antropogenic sources of nitrous oxide (N2O) emission produced by microbiologicalnitrification-denitrification mediated processes. Attempt to increase soil productivity in lowlandrice system by organic amendment is predicted to stimulate nitrous oxide production. Theincrease of N2O production in lowland rice could be suppressed by using nitrification inhibitormaterials. A field experiment was conducted in rainfed lowland rice during 2009 dry season. Theobjective was to study interaction of rice straw application and nitrification inhibitor materialson nitrous oxide emission from rainfed lowland rice. Experiment was arranged using factorialrandomizes block design with three replicates and treatment of rice straw application (withoutrice straw, fresh straw, composting straw) and inhibitor nitrification materials (without inhibitornitrification, neemcake, carbofuran). Interaction of rice straw and nitrification inhibitor materialsdecreased significantly N2O emission from lowland rice soil. Nitrous oxide emission in plotwithout rice straw was higher than in plot treated with neither fresh rice straw nor compostingstraw. Application neemcake combined with composting straw emitted lowest nitrous oxidewith flux of 72 g N2O ha-1 season-1, whereas the highest N2O emission was found in plot withoutnitrification inhibitor materials and rice straw with flux of 454 g N2O ha-1 season-1. Comparedwith treatment of without nitrification inhibitor, application of neemcake and carbofuran couldsuppress nitrous oxide emission of 48.6 and 41.3 %, respectively.Key words : nitrous oxide emission, rainfed lowland, rice straw, nitrification inhibitors
Co-Authors Adriani, Terry Ayu Ali Pramono B. Hendro Sunarminto Mochammad Imron Awalludin PRIHASTO SETYANTO S. Djalal Tandjung