Mitigating nitrous oxide emissions from tea field soil using bioaugmentation with a trichoderma viride biofertilizer

10Citations
Citations of this article
25Readers
Mendeley users who have this article in their library.

Abstract

Land-use conversion from woodlands to tea fields in subtropical areas of central China leads to increased nitrous oxide (N2O) emissions, partly due to increased nitrogen fertilizer use. A field investigation of N 2O using a static closed chamber-gas chromatography revealed that the average N2O fluxes in tea fields with 225 kg N ha-1 yr-1 fertilizer application were 9.4 ± 6.2 times higher than those of woodlands. Accordingly, it is urgent to develop practices for mitigating N2O emissions from tea fields. By liquid-state fermentation of sweet potato starch wastewater and solid-state fermentation of paddy straw with application of Trichoderma viride, we provided the tea plantation with biofertilizer containing 2.4 t C ha-1 and 58.7 kg N ha-1. Compared to use of synthetic N fertilizer, use of biofertilizer at 225 kg N ha-1 yr-1 significantly reduced N 2O emissions by 33.3%-71.8% and increased the tea yield by 16.2%-62.2%. Therefore, the process of bioconversion/bioaugmentation tested in this study was found to be a cost-effective and feasible approach to reducing N2O emissions and can be considered the best management practice for tea fields. © 2014 Shengjun Xu et al.

Cite

CITATION STYLE

APA

Xu, S., Fu, X., Ma, S., Bai, Z., Xiao, R., Li, Y., & Zhuang, G. (2014). Mitigating nitrous oxide emissions from tea field soil using bioaugmentation with a trichoderma viride biofertilizer. The Scientific World Journal, 2014. https://doi.org/10.1155/2014/793752

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free