沼肥种类及不同施氮量对芹菜品质影响研究  

Effects of Different Digestate Source and Nitrogen Application Rate on the Quality of Celery

作　　者：姜灵伟 陈锐 冉毅[2] 贺莉[2] 梅自力[2] 刘宏斌[3] 林聪[1] 段娜[1] JIANG Ling-wei;CHEN Rui;RAN Yi;HE Li;MEI Zi-li;LIU Hong-bin;LIN Cong;DUAN Na(College of Water Resources and Civil Engineering,China Agricultural University,Beijing 100083,China;Biogas Institute of Ministry of Agriculture,Chengdu 610041,China;Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]农业部沼气科学研究所,成都610041 [3]中国农业科学院农业资源与农业区划研究所,北京100081

出　　处：《中国沼气》2020年第1期80-84,共5页China Biogas

基　　金：国家重点研发计划课题(2018YFD0800803)。

摘　　要：沼渣沼液作为厌氧发酵后的产物,因其量大消纳难,已逐渐成为限制沼气工程发展的制约因素。因此研究沼渣沼液作为肥料施用于农田对作物生长发育的影响具有重要的意义。该研究分别以猪粪厌氧发酵剩余物和秸秆牛粪厌氧发酵剩余物作为肥料,设置不同氮浓度施用水平(0,8.5,17,34,68 gTN·m-2 y-1),具体以沼渣作为底肥、沼液作为追肥的施肥方式,实际施用量以总氮(TN)作为标定指标,沼渣沼液施用比例为1∶2。研究结果表明:不同来源厌氧发酵剩余物对芹菜品质的影响效果不同;中低浓度氮条件下的猪粪沼肥和高氮浓度条件下的秸秆牛粪沼肥更有利于芹菜的营养物质的积累。The digestate treatment becomes a bottleneck problem for the sustainable development of biogas industry due to its large amount and difficult to utilize.Thus,how to take maximum advantage of using digestate as fertilizer to farmland should be further investigated.The present study was conducted to investigate the effect of digestate at different nitrogen levels(0,8.5,17,34,68 g TN·m-2 y-1 and different digestate sources)pig manure digestate(PMD),straw&cattle manure digestate(SD)on quality of celery.After the solid-liquid separation process,the solid fraction of digestate was used as base fertilizer and the liquid digestate as top fertilizer.The fertilization proportion of base fertilizer to top fertilizer was 1∶2 based on the designed total nitrogen level.The results indicated that different digestate had different effect on the quality of the celery.The PMD under moderate nitrogen concentration and SD under high nitrogen concentration were more beneficial to the accumulation of nutrients in celery.

关 键 词：厌氧消化 沼渣沼液 施氮量 芹菜 品质 

分 类 号：S216.4[农业科学—农业机械化工程] X712[农业科学—农业工程]