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All Journal Journal of Tropical Soils Indonesian Journal of Agricultural Science Jurnal Produksi Tanaman SAINS TANAH - Journal of Soil Science and Agroclimatology
PRIHASTO SETYANTO
Balai Penelitian Lingkungan Pertanian, Jakenan
Agriculture, Biological Sciences & Forestry Education Environmental Science

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METHANE EMISSION FROM PADDY FIELDS AS INFLUENCED BY DIFFERENT WATER REGIMES IN CENTRAL JAVA Setyanto, Prihasto; Bakar, Rosenani Abu
Indonesian Journal of Agricultural Science Vol 6, No 1 (2005): April 2005
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

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Abstract

The concentration of methane (CH4) in the atmosphere is increasing at 1% per annum and rice fields are one of the sources that contribute to about 10-15% of the atmospheric CH4. One of the options to reduce greenhouse gas emission from rice fields is probably through water management. A field study was conducted to investigate the effects of water management practices on CH4 emission from rice field plots on a silty sand Aeric Tropaquept soil at Research Station for AgriculturalEnvironment Preservation, Jakenan, Central Java, Indonesia, during the dry season of March to June 2002. Four water regimes tested were: (1) 5 cm continuous flooding (CF), (2) 0-1 cm continuous flooding (ST), (3) intermittent irrigation (IR) where plots received continuously 5 cm of flooding with two times of draining at 15-20 and 25-30 days after transplanting (DAT), and (4) pulse irrigation (PI) where plots were watered until 5 cm level and left to dry by itself until the water table reached30 cm beneath soil surface then watered again. The total CH4 emissions of the four water treatments were 254, 185, 136 and 96 kg CH4 ha-1 for CF, ST, IR and PI, respectively. Methane emission increased during the early growing season, which coincided with the low redox potential of -100 to -150 mV in all treatments. Dry matter weight of straw and filled grainamong the water treatments did not show significant differences. Likewise, total grain yield at 14% moisture content was not significantly different among treatments. However, this result should be carefully interpreted because the rice plants in all water treatments were infested by stem borer, which reduced the total grain yield of IR64 between 11% and 16%. This study suggests that intermittent and pulse irrigation practices will beimportant not only for water use efficiency, but also for CH4 emission reduction.
N2O Emission from Managed Soil Under Different Crops in Rainfed Area, Central Java Ariani, Miranti; Hervani, Anggri; Setyanto, Prihasto
JOURNAL OF TROPICAL SOILS Vol. 21 No. 2: May 2016
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2016.v21i2.79-89

Abstract

N2O emission from agriculture has been assumed to increase by 30-35% until 2030. This gas has a major contribute to the emission from agriculture. N2O emission from managed soils is the 2nd contributor to green house gas (GHG) emission from agriculture in Indonesia. Rainfed area requested high management input. This research aimed to examine N2O emission from different crops in the rainfed area and its affecting factors, also to identify things that need to be considered in conducting N2O measurement from managed soil. Research conducted in Pati and Blora District, Central Java Province. Four (4) different experimental sites with 4 different crops were chosen. Those were mung bean, rubber plantation and sugarcane which located within Pati District, and maize crop which located in Blora District. No treatment was applied. Gas samples were taken following the day after fertilizing. Daily N2O fluxes from managed soil in tropical land of Indonesia determine by several factors, which are: days after fertilizing, fertilizer type and dosage, previous land use, growth phase of crops, sampling point and soil characteristic. The peak time was mostly influenced by crop type. Maize has the highest N2O daily fluxes with the range of 311.9 - 9651.6 ugN2O m-2day-1 and rubber plantation has the lowest with the range of 16.1 - 2270.7 ugN2O m-2day-1. Measurement of N2O from managed soil to determine annual emissions should be done at all crop types, soil types, considering crops growth phase and also high sampling frequency to prevent an over or underestimation.
HERITABILITAS DAN KARAKTERISTIK TANAMAN PADI RENDAH EMISI GAS METANA Arisandi, Finsa Dwi; Setyanto, Prihasto; Ardiarini, Noer Rahmi
Produksi Tanaman Vol. 6 No. 6 (2018)
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

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Abstract

Tanaman padi memegang peranan penting dalam melepaskan metana (CH4) ke atmosfer dari lahan sawah. Pelepasan gas metana dari padi dipengaruhi oleh faktor genetik dan lingkungan. Penelitian ini bertujuan untuk mengetahui heritabilitas beberapa karakter varietas padi rendah emisi gas metana dan menentukan karakter penciri khusus untuk tanaman padi dengan emisi gas metana rendah. Percobaan menggunakan metode Rancangan Acak Kelompok. Padi ditanam dengan sistem gogorancah (gora). Analisis genetik dengan menggunakan heritabilitas serta perhitungan regresi antar karakter dengan emisi gas metana berdasarkan penciri khusus tanaman padi rendah emisi gas metana. Hasil penelitian menunjukkan bahwa tanaman padi mengemisikan gas CH4 diduga dipengaruhi oleh faktor genetik dengan nilai heritabilitas 0,91. Padi dengan emisi gas metana rendah mempunyai karakter penciri biomassa sedikit, luas rongga aerenkima akar sempit, dan morfologi ketegaran batang dan daun yang lemah. Varietas Inpari 13 dan Mekongga mengemisikan gas CH4 rendah.
Effects of soil amendment from herbal and eucalyptus industrial waste on methane emission and rice yield Kurniawati, Feriana Dwi; Suntoro, Suntoro; Setyanto, Prihasto; Cahyani, Vita Ratri
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 20, No 2 (2023): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v20i2.69297

Abstract

The use of chemical fertilizer in rice fields contributes to increased global warming via enhanced emission of methane (CH4) into the atmosphere. Therefore, composting has been proposed to reduce methane emissions in the agricultural field. This study aimed to determine the CH4 emission and rice yield affected by compost from three different types of compost: herbal compost, eucalyptus compost, and manure compost. This randomized block design study was conducted from November 2019 to May 2020. There were 8 fertilizer treatments applied to the rice fields, namely: herbal compost 10 tons/ha. (O1), eucalyptus compost 10 tons/ha (O2), manure compost 10 tons/ha (O3), no compost no chemical fertilizer (as a control) (O4), herbal compost 5 tons/ha + chemical fertilizer/CF (C1), eucalyptus compost 5 tons/ha + CF (C2), manure compost 5 tons/ha + CF (C3), and only chemical fertilizer (C4), then all treatments replicated three times. For the chemical fertilizer (CF) the dose is 166 kg/ha urea + 166 kg/ha ZA + 330 kg/ha TSP. The result indicated that the compost manure 10 tons/ha (O3) and the combination compost manure 5 tons/ha + CF (C3) produced the highest rice yields (6.89 -6.94 tons/ha) but impacted the highest methane emissions (505.3 – 544.6 Kg.CH4 /ha/season). The important finding showed that among all the treatments, a combination of compost eucalyptus 5 tons/ha + CF (C2) and compost eucalyptus 10 tons/ha (O2) mitigated methane emission to the lowest level (296.6 -305.2 Kg.CH4/ha/season) and gave high rice yields (6.77-6.78 tons/ha) that were not significantly different from those of compost manure (O3 and C3). In addition, the combination of compost herbal 5 tons/ha and chemical fertilizer (C1) affected the lower methane emissions than manure compost and gave a high level of grain yield that was not significantly different from those of manure compost (O3 and C3) and eucalyptus compost (O2 and C2). 
Co-Authors A. Wihardjaka Adriani, Terry Ayu Ali Pramono Anggri Hervani, Anggri Arisandi, Finsa Dwi Eni Yulianingsing, Eni HL Susilawati, HL Indratin Indratin Kurniawati, Feriana Dwi Miranti Ariani Muanisah, Ukhwatul Noer Rahmi Ardiarini, Noer Rahmi Rosenani Abu Bakar Slamet Rianto Sri Wahyuni Suntoro Suntoro Vita Ratri Cahyani