4种园艺废弃物还田对设施西芹土壤微生物活性的影响

针对园艺废弃物未资源化利用问题,以设施西芹土壤为研究对象,以不添加废弃物为对照,以桃树枝条(T1)、葡萄枝条(T2)、菜豆植株(T3)、黄瓜植株(T4)以及4种残体等体积混合还田(T5)为处理,研究其对西芹土壤C/N、微生物量碳氮以及微生物群落数量的影响。结果表明:各还田处理均显著增加拉秧期土壤微生物量氮和全氮含量,T1、T4、T5处理显著增加拉秧期土壤微生物量碳和有机碳,且T1和T4处理显著增加土壤微生物量C/N,其中T5处理增加微生物碳、氮效果最显著;T2、T3、T4、T5处理显著增加土壤细菌数量,T4处理显著增加土壤真菌数量,其他还田处理显著降低缓苗期土壤真菌,各还田处理显著增加拉秧期土...

Full description

Saved in:
Bibliographic Details
Published in广东农业科学 Vol. 42; no. 2; pp. 54 - 58
Main Author 宗庆姝 杨冬艳 张雪艳 张学忠 田蕾
Format Journal Article
LanguageChinese
Published 宁夏大学农学院,宁夏银川,750021%宁夏农林科学院种质资源研究所,宁夏银川,750002%宁夏贺兰县农业开发办公室,宁夏贺兰,750200 2015
Subjects
Online AccessGet full text
ISSN1004-874X

Cover

More Information
Summary:针对园艺废弃物未资源化利用问题,以设施西芹土壤为研究对象,以不添加废弃物为对照,以桃树枝条(T1)、葡萄枝条(T2)、菜豆植株(T3)、黄瓜植株(T4)以及4种残体等体积混合还田(T5)为处理,研究其对西芹土壤C/N、微生物量碳氮以及微生物群落数量的影响。结果表明:各还田处理均显著增加拉秧期土壤微生物量氮和全氮含量,T1、T4、T5处理显著增加拉秧期土壤微生物量碳和有机碳,且T1和T4处理显著增加土壤微生物量C/N,其中T5处理增加微生物碳、氮效果最显著;T2、T3、T4、T5处理显著增加土壤细菌数量,T4处理显著增加土壤真菌数量,其他还田处理显著降低缓苗期土壤真菌,各还田处理显著增加拉秧期土壤B/F,T3、T4、T5处理显著增加放线菌数量;相关分析表明,细菌、真菌、放线菌、总菌数均与微生物量氮呈极显著正相关,真菌与放线菌与全氮呈显著正相关,且真菌与土壤C/N显著负相关,B/F与土壤C/N、微生物量C/N呈显著正相关。说明4种园艺废弃物还田均在一定程度上改善土壤微生物环境,其中T3、T4、T5处理效果显著,且T5处理增加微生物量碳、氮最显著。
Bibliography:Aiming to full use of garden waste resources,the experiment used celery soil in greenhouse as material.No adding waste as CK,peach branches residues as T1,grape branches residues as T2,bean plants residues as T3,cucumber plants residues as T4,and the above four waste with the same volume residues as T5,the effects ofdifferent treatments on soil C/N,microbial biomass carbon and nitrogen,and the quantity of microflora were studied.The results showed that,each garden residues treatment could significantly increase microbial biomass nitrogen and total nitrogen content in late growth stage.T1,T4,T5 could increase soil microbial biomass carbon and organic carbon in late growth stage significantly,also T1 and T4 could increase microbial biomass carbon C/N remarkably,in which T5 increased microbial carbon and nitrogen most significantly.T2,T3,T4,T5 increased soil bacterial quantity significantly.T4 increased soil fungi quantity significantly,other returning treatments reduced soil fungi quantity in the early growth s
ISSN:1004-874X