华南农业大学学报2017，Vol.38Issue(2)：48-54,7.DOI:10.7671/j.issn.1001-411X.2017.02.010
控释肥肥效期对裸地和栽培香蕉土壤N 2O 减排效果的影响
Effects of longevity of controlled-release fertilizer on N2 O emission reduction in bare soil and banana-planted soil
摘要
Abstract
[Objective] To study effects of longevity of controlled-release fertilizer ( CRF) on mitigation of N2 O emission from bare soil and banana-planted soil , and to provide references for further research on mitigation of N2O emission from the field.[Method]Using static chamber-GC technique, pot experiment was conducted to study N 2 O fluxes and cumulative emission from bare soil and banana-planted soil fertilized with CRF of 1, 3 and 5 months longevity ( marked as CRF 1Mon, CRF 3Mon and CRF 5Mon respectively ) .[Result]CRF longevity significantly affected the number of emission peaks , maximum emission peak flux , cumulative emissions and global warming potential of N 2 O from bare soil and banana-planted soil.There were 5, 3 and 3 N2 O emission peaks of CRF 1Mon, CRF 3Mon and CRF 5Mon from bare soil in the middle and later stages .Maximum emission peak flux decreased in order of CRF 1Mon >CRF 3Mon >CRF 5Mon.The cumulative emissions of CRF 3Mon and CRF 5Mon were significantly low-er than that of CRF 1Mon.There were 1 and 3 N2 O emission peaks of CRF 1Mon and CRF 3Mon from banana-planted soil only in the early stage .N2 O cumulative emissions decreased in order of CRF 1Mon>CRF 3Mon >CRF 5Mon.Prolonged CRF application was more effective on reducing N 2 O emission from banana-planted soil than that from bare soil .The cumulative emission decreased by 24.06%to 52.81%in bare soil , and decreased by 54.22%to 75.34%in banana-planted soil .[Conclusion]Prolonged CRF application and crop planting can help effectively reduce soil N 2 O emission and the greenhouse effect .关键词
控释肥/肥效期/栽培香蕉/N2 O排放Key words
controlled-release fertilizer/longevity/banana cultivation/N2 O emission分类
农业科技引用本文复制引用
刘芳,杜亚琴,张立丹,樊小林..控释肥肥效期对裸地和栽培香蕉土壤N 2O 减排效果的影响[J].华南农业大学学报,2017,38(2):48-54,7.基金项目
“十二五”国家科技支撑计划（2011BAD11B04）；国家自然科学基金（30871594，31071857）；广东高校工程技术研究中心建设项目 （）
