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All Journal Buletin Ekonomi Perikanan BERITA BIOLOGI
M Sri Saeni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance

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TEKNOLOGI PENGAIRAN DAN PENGOLAHAN TANAH PADA BUDIDAYA PADI SAWAH UNTUK MITIGASI GAS METANA (CH4) Naharia, Orbanus; Saeni, M Sri; Sabihan, Supiandi; Burhan, Harris
BERITA BIOLOGI Vol 7, No 4 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (603.567 KB) | DOI: 10.14203/beritabiologi.v7i4.880

Abstract

Global warming that caused by green house effect is one phenomena where short wave sunlight radiation penetrates the atmosphere and changes to become long wave on earth surface, when reaching the earth surface, a part of the wave reflected to atmmosphere,however not the entire reflected wave will be released to outer space; greenhouse gases layer in the atmosphere will reflect part of the wave to the earth surface resulting in increasing surface temperature.According to data from National Communication in 1997, agriculture and husbandry sectors give large contribution for the increasing green house gases particularly CH4 produced from rice field cultivation.Due to the reason, research for "irrigation and soil cultivation technology on rice field for mitigation of methane (CH4) gas emission in dry season" has been conducted. The objectives are to analyze different effect of continuously flooded (5 cm), intermittent irrigation and saturated water condition (0 - 1 cm water level) on CH4 emission, to analyze effect of soil cultivation and zero tillage on CH4 emission and to analyze interaction between irrigation treatment and soil cultivation on rice field for CH4 emission.The result indicated that type of irrigation systems affect the CH4 emission on rice field cultivation. Intermitten irrigation system shows able to suppress CH4 emission 56.34%, while saturated water condition system is 54.61%. Type of soil cultivation also affects the CH4 emission. Soil preparation with zero tillage by touchdown reduced CH4 emission by 25.55%, while by gramoxone the reduction was 48.84%. The lowest CH4 emission was under saturated water condition system combined with zero tillage treatment. Combination saturated water condition system by touchdown and zero tillage treatment is resulting emission in amount of 61.54 kg/CH4/ha/season. The combination of saturated water condition system by gramoxone and zero tillage treatment is resulting emission in amount of 88.12 kg CH4/ha/season.Combination of all treatment has no significant difference on rice yield.
A case study with aim to know impact development of port of fishery to absorbtion of labour and earnings of vinicity society has been conduct in August till Octooer 2004. Research executed at society around Port of Fishery of Coast of Lempasing, 8andar Lampung. Determination of respondent at the location port of fishery selected by using purposive sampling method. Data collecting use some materials assist by questionaire. Overall \jf data was analyzed, through either deScriptive and statistic. R Helmi Yusuf; Kooswardhono Moedikdjo; M Sri Saeni; Lutfi I Nasution
Buletin Ekonomi Perikanan Vol. 6 No. 1 (2005): Buletin Ekonomi Perikanan
Publisher : Buletin Ekonomi Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A case study with aim to know impact development of port of fishery to absorbtion of labour and earnings of vinicity society has been conduct in August till Octooer 2004. Research executed at society around Port of Fishery of Coast of Lempasing, 8andar Lampung. Determination of respondent at the location port of fishery selected by using purposive sampling method. Data collecting use some materials assist by questionaire. Overall \jf data was analyzed, through either deScriptive and statistic. Result of research indicated that various society group pursuant to the kind of livelihood (fisherman, trader, labour, farmer and fish processor) express that development of port of fishery of coast of Lempasing have positive impact due to absorbtion of labour and improvement of earnings of the vinicity society. The absorbtion of society in some livelihood such fisherman, traders, labour and fish processor are subsequently increase until 90,63%, 73,31%, 82,81% and 29,63%. While, the absorption of labor force in farmer has indicated that the farmer was decline until 40,63%. Improvement of biggest earnings seen at fISh trader society group 113,41 %, while earnings of fldh processor and labour fish up to 101,08% and 54,07%. Improvement of earnings also happened in farmer society group by up to 102,50%. Despite, the improvement of earnings at fisherman SOCiety happened with smallest percentage that is only 44,93%.  
Co-Authors Burhan, Harris Helmi Yusuf Kooswardhono Moedikdjo Lutfi I Nasution Orbanus Naharia Sabihan, Supiandi