复合菌剂与氮源对桉树皮堆肥的理化性质与微生物学特性的影响  

Physiochemical and Microbiological Changes During Composting of Eucalyptus Bark with Microbial Incubation and Nitrogen Supplement

作　　者：陈金峰[1] 黄丽丽[1] 何慧中[2] 刘可星[2] 孙映波[1] 赵超艺[1] 朱根发[1] 

机构地区：[1]广东省农业科学院环境园艺研究所,广东广州510640 [2]华南农业大学资源与环境学院,广东广州510640

出　　处：《热带作物学报》2015年第4期724-730,共7页Chinese Journal of Tropical Crops

基　　金：广东省科技计划项目(No.2011A030600002);广东省现代农业产业技术体系建设专项(粤财教[2009]356号)

摘　　要：为能更科学合理地利用桉树皮生产植物育苗基质,从物理化学和微生物学角度研究了添加活性微生物菌剂和氮源对桉树皮堆肥过程的影响。结果表明:化学处理(氮源)和生物-化学联合处理(氮源+菌剂)的p H先下降后上升,EC持续下降;氨氮质量分数先增加后降低,而硝态氮的质量分数在试验期间总体上一直处于增加趋势;全磷和全钾的质量分数到试验结束时均有所增加;纤维素和木质素降解迅速;细菌数量在最高温出现之后迅速增殖,真菌数量呈现先增加后降低的趋势。生物处理(菌剂)对桉树皮堆肥作用有限。在化学处理基础上添加菌剂,降低了堆肥材料的电导率和硝态氮的质量分数;促进了全钾的积累;对桉树皮纤维素和木质素的降解无明显作用;促进了可培养细菌的增殖,但对可培养真菌有拮抗作用。Physiochemical and microbiological properties during the composting of eucalyptus bark under different treatments were studied in order to provide a scientific basis for using eucalyptus bark as growth media for plant cultivation. We found that under the nitrogen supply treatment including simple nitrogen addition and nitrogen- microbe combined treatment, the pH value decreased and then increased slightly; the EC value dropped consistently; the ammonia nitrogen contents displayed a rising trend first but dropped at last; the nitrate showed a general increase during the whole experiment; the total phosphorus and potassium contents increased; cellulose and lignin were degraded rapidly; the amount of eulturable bacteria surged after the maximum temperature, while the cuhurable fungi population demonstrated an increase at first and then dropped at the end. Barely any effects were observed by simply incubation the eucalyptus bark with the microbial agent. Microbial incubation upon the supply of nitrogen source decreased the conductivity and nitrate contents, increased the amount of potassium; had no obvious effects on the degradation of cellulose and lignin; promoted the proliferation of bacteria, but suppressed the growth of fungi population.

关 键 词：桉树皮 物理化学性质 纤维素 木质素 细菌 真菌 

分 类 号：S792.39[农业科学—林木遗传育种]