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題名 | 稻穀生物炭改良劑對盆栽大豆幼苗、土壤性質和溫室氣體排放之影響=Effects of Rice Husk Biochar Amendment on Soybean Seedling, Soil Properties and Greenhouse Gas Emissions in a Pot Experiment |
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作者 | 陳昶君; 賴朝明; 賴威宇; Chen, Chang-chun; Lai, Chao-ming; Lai, Wei-ju; |
期刊 | 臺灣農業化學與食品科學 |
出版日期 | 20120600 |
卷期 | 50:3 2012.06[民101.06] |
頁次 | 頁171-178 |
分類號 | 434.227 |
語文 | chi |
關鍵詞 | 稻殼; 生物炭; 改良劑; 大豆; 土壤性質; 溫室氣體; Rice husk; Biochar; Amendment; Soybean; Soil property; Greenhouse gas; |
中文摘要 | 本研究利用盆栽試驗,探討土壤施用不同量的稻穀生物炭改良劑,對盆栽大豆幼苗、土壤性質和溫室氣體排放之影響。以五個不同處理(分別為施用0、50、100 g kg-1 soil稻殼生物炭並施肥及0、100 g kg-1 soil稻殼生物炭但不施肥),於酸性的平鎮系土壤種植大豆(花蓮一號),栽種天數為35天,為一幼苗試驗。於大豆栽培期間採集土壤並分析其pH值、導電度、全氮、無機態氮、有效磷、有效鉀、有機質等含量和土壤溫室氣體排放通量,並在栽培期間記錄大豆株高,結束試驗後量測植株鮮重及乾重。結果顯示,稻殼生物炭的施用會顯著增加土壤pH、有效磷、有效鉀和有機質含量(p<0.05),而施用稻殼生物炭的大豆幼苗比未施用者生長顯著較好(p<0.05),此外稻殼生物炭的施用可顯著降低盆栽土壤CO2、N2O、CH4和CO2e的排放(p<0.05)。 |
英文摘要 | A pot experiment was conducted to examine the effects of rice husk biochar (RHB) amendment on soybean seedlings, soil properties, and greenhouse gas emissions (CO2, N2O and CH4). Five treatments including RHB at rates of 0, 50, and 100 g kg-1 soil with fertilization and 0, 100 g kg-1 soil without fertilization were designed to apply to an acid Pinchen series soil planted soybean (Hualien No. 1). The pH, electrical conductivity, total nitrogen, inorganic nitrogen, available phosphorus, available potassium, and organic matter contents in soil and greenhouse gas emissions from soil were analyzed during 35-day cultivation period. The growth (height and weight) of soybean seedlings was also measured during the same period. Results showed that RHB amendment significantly increased soil pH, available phosphorus, available potassium and organic matter contents (p<0.05). The growth of soybean seedlings with RHB was significantly better than those without RHB (p<0.05). In addition, RHB amendment significantly reduced soil CO2, N2O, CH4 and CO2e emissions from the soil (p<0.05). |
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