生物有机肥对黄壤烟田微生物生态特性的影响

发布时间：2018-05-20 10:50

本文选题：烟田 + 生物有机肥　；参考：《西南大学学报(自然科学版)》2017年09期

【摘要】：为探明连续3年施用生物有机肥对黄壤烟田微生物生态特性的影响,本文采用田间定位试验,研究了不同培肥模式(常规处理、生物有机肥375kg/hm~2、生物有机肥750kg/hm~2、生物有机肥1 500kg/hm~2)对烟叶品质、土壤微生物数量及活性的影响.结果表明:相对于常规处理,连续3年施用生物有机肥的处理,中上等烟叶的比例都有一定程度的提高,均价、总产值和中上等烟叶的比例都有一定程度的提高,以生物有机肥750kg/hm~2处理的均价、中上等烟比例和总产值最高;相对于常规处理,生物有机肥750kg/hm~2和1 500kg/hm~2处理均明显提高了黄壤烟田土壤微生物生态特性参数(如微生物碳氮、土壤微生物熵及土壤微生物呼吸强度等),结合烤烟生产生物有机肥750kg/hm~2处理对黄壤烟田微生态改良为最佳选择.研究结果可为维持或提高黄壤烟田的生态功能提供理论依据和技术支撑.
[Abstract]:In order to investigate the effect of bio-organic fertilizer application on microbial ecological characteristics of tobacco field in yellow soil for 3 consecutive years, different fertilization models (conventional treatment) were studied in this paper. Effects of biological organic fertilizer 375kg 路hm-2, bio-organic fertilizer 750kg / hmm-2, bio-organic fertilizer 1 500kg / hmm-2) on tobacco quality, soil microbial quantity and activity. The results showed that compared with conventional treatments, the proportion of middle and upper tobacco leaves increased to a certain extent, the average price, the total output value and the proportion of middle and upper tobacco leaves increased to a certain extent by applying biological organic fertilizer for 3 consecutive years. Compared with conventional treatments, 750kg/hm~2 and 1 500kg/hm~2 treatments of biological organic fertilizer significantly increased the ecological characteristics of soil microbes (such as microbial carbon and nitrogen) in yellow soil tobacco fields. Soil microbial entropy and soil microbial respiration intensity, combined with 750kg/hm~2 treatment of flue-cured tobacco production biological organic fertilizer, were the best choice for the improvement of micro-ecology in yellow soil tobacco field. The results can provide theoretical basis and technical support for maintaining or improving the ecological function of yellow soil tobacco field.
【作者单位】：西南大学资源环境学院;重庆烟草科学研究所;湖南中烟工业有限责任公司;广西中烟工业有限责任公司;广东中烟工业有限责任公司;
【基金】：国家自然科学基金项目(31372141,31672238) 中国烟草总公司重点项目(110201502015) 广西中烟工业有限责任公司项目(CG2016109022)
【分类号】：S154.3;S572

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