Mushroom residue application affects CH4 and N2O emissions from fields under rice–wheat rotation. Issue 6 (12th May 2017)

• Record Type: Journal Article
• Authors: Gao, Xuesong; Lan, Ting; Deng, Liangji; Zeng, Min
• Is Part Of: Archives of agronomy and soil science. Volume 63:Issue 6(2017)
• Page Start: 748
• Page End: 760
• Publication Date: 2017-05-12
• Subjects: Crop straw -- greenhouse gas -- global warming potential -- organic amendment; Horticulture -- Periodicals; Soils -- Periodicals; 630.5
• DOI: 10.1080/03650340.2016.1235784
• Languages: English
• ISSNs: 0365-0340

Abstract

ABSTRACT: A field experiment involving rice–wheat rotation was performed to investigate the effect of mushroom residue (MR) in comparison with chemical fertilizer (CF) and crop straw return on methane (CH4 ) and nitrous oxide (N2 O) emissions in 2012–2013. Five treatments in quadruplicate were included in this study: (1) CF only, (2) CFS (straw + CF), (3) MR-1 (50% amount of N in CF was replaced with MR), (4) MR-2 (100% amount of N in CF was replaced with MR) and (5) MR-3 (150% amount of N in CF was replaced with MR). Results showed that the effects of CFS and MR-1 treatments on CH4 and N2 O emissions did not significantly differ. By contrast, CH4 emissions decreased as the amount of applied MR increased. Crop straw and MR stimulated CH4 emissions (from 48.8% to 119%) in rice season in 2012. In 2013, the applied crop straw and MR decreased CH4 emissions (from 21.3% to 37.3%). This contrasting effect might be explained by the difference in soil moisture content between the two seasons. N2 O emission in wheat season could be efficiently decreased (from 25.2% to 29.7%) by applying MR. Our results suggesting that MR could be used as a soil organic amendment under the premise of proper water management.