期刊论文

Effects of Bio-carbon on the Carbon Metabolism of Rhizosphere Soil Microbial Communities in Flue-cured Tobacco

中文

中国农业科技导报

1008-0864

2018

20

9

49-56

10.13304/j.nykjdb.2018.0061

201743000934110:特色优质烟叶开发项目 2017JJ3119:湖南省自然科学基金 83463:湖南省教育厅一般项目 XX16-18Aa02:湖南省烟草公司项目

本校为第一机构

为探究不同施用量的生物炭对烤烟根际土壤微生物群落碳代谢的影响, 并明确适宜的生物炭用量.以云烟87为试验材料, 设置了不施用生物炭的对照组 (CK) 和生物炭用量分别为3 000 kg/hm2 (T1) 、3 750kg/hm2 (T2) 与4 500 kg/hm2 (T3) 的处理组, 于烤烟旺长期采集土壤样品, 运用Biolog-ECO微孔板技术分析烤烟根际土壤微生物群落的功能多样性.结果表明:施用生物炭能提高土壤微生物AWCD值与微生物多样性各项指数, 能显著提高羧酸类和聚合物类碳源的利用能力, 且T2处理在这两类碳源利用能力上较CK处理分别显著提高24.82％和70.71％.主成分分析表明, 碳水化合物类、羧酸类和氨基酸类碳源是造成各处理土壤...

To explore the influence of different biochar dosages on the carbon metabolism of rhizospheric soil microorganism community of flue-cured tobacco, and clarify the appropriate biochar dosage, this study took Yunyan87 as experimental material and established a contrast group ( CK) with no application of biochar and 3 treatments with biochar doses as 3 000 kg/hm2 ( T1), 3 750 kg/hm2 ( T2), and 4 500 kg/hm2 ( T3), respectively. The soil samples were collected during the fast growing period of flue-cured tobacco, and the functional diversity of rhiz...