Modifying nitrogen fertilizer practices can reduce greenhouse gas emissions from a Chinese double rice cropping system

doi:10.1016/j.agee.2015.09.008

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 气候变化研究室

	Modifying nitrogen fertilizer practices can reduce greenhouse gas emissions from a Chinese double rice cropping system
	Wang, Bin 1,2; Li, Yu'e 1; Wan, Yunfan 1; Qin, Xiaobo 1; Gao, Qingzhu 1; Liu, Shuo 1; Li, Jianling 1
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	2016
卷号	215 页码:100-109
关键词	Double rice-winter fallow rotation Automatic closed chamber Greenhouse gas emission intensity Controlled release urea Nitrification inhibitor Effective microorganisms
ISSN号	0167-8809
DOI	10.1016/j.agee.2015.09.008
通讯作者	Wang, Bin
英文摘要	Practical nitrogen fertilizers are required that simultaneously increase yield and reduce greenhouse gas (GHG) emissions from rice (Oryza sativa L.) paddies. A field experiment was conducted to measure methane (CH4) and nitrous oxide (N2O) fluxes in situ during two double rice-winter fallow rotations (2012-2014) under five different nitrogen fertilizer treatments: traditional urea (CM), polymer-coated controlled release urea (CRU), urea with N-Sever nitrapyrin (NU), urea with 3,4-dimethylpyrazole phosphate (DMPP), and urea with effective microorganisms (EM). The results revealed that GHG emissions ranged between 77.2 and 178.2 kg CH4 ha(-1) and 4.18 and 10.11 kg N2O ha(-1) averagely over the whole rotation, and significant differences (P < 0.05) among treatments and seasons were found. N2O emissions accounted for 26.6-36.9% of total GWP, and significant N2O emissions were observed during the winter fallow period, ranging from 3.1 to 3.88 kg N2O ha(-1). Compared to the GWP (7.66 and 8.85 Mg CO2 ha(-1)) and GHGI (0.52 and 0.63 Mg CO2 Mg-1 grain) from CM in 2012 and 2013 rotation, respectively, CRU achieved the highest reduction (48.5% for GWP and 55.4% for GHGI) in 2012, NU achieved the highest reduction (37.6% for GWP and 43.1% for GHGI) in 2013, and other treatments also realized different levels of decrease. Thus, controlled release urea, nitrification inhibitor or effective microorganisms might be effective fertilization options for low-carbon rice production with high yield. (C) 2015 Published by Elsevier B.V.
学科主题	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000364611300011
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19719]
专题	农业环境与可持续发展研究所_气候变化研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Agr Environm, Minist Agr PR China, Beijing 100081, Peoples R China 2.Hainan Inst Meteorol Sci, Haikou 570203, Hainan Province, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin,Li, Yu'e,Wan, Yunfan,et al. Modifying nitrogen fertilizer practices can reduce greenhouse gas emissions from a Chinese double rice cropping system[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2016,215:100-109.
APA	Wang, Bin.,Li, Yu'e.,Wan, Yunfan.,Qin, Xiaobo.,Gao, Qingzhu.,...&Li, Jianling.(2016).Modifying nitrogen fertilizer practices can reduce greenhouse gas emissions from a Chinese double rice cropping system.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,215,100-109.
MLA	Wang, Bin,et al."Modifying nitrogen fertilizer practices can reduce greenhouse gas emissions from a Chinese double rice cropping system".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 215(2016):100-109.