Urease and nitrification inhibitors to reduce emissions of CH4 and N2O in rice production

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	Urease and nitrification inhibitors to reduce emissions of CH4 and N2O in rice production
	Xu, XK ; Boeckx, P ; Van Cleemput, O ; Zhou, LK
刊名	NUTRIENT CYCLING IN AGROECOSYSTEMS
	2002
卷号	64 期号:1-2 页码:203-211
关键词	methane nitrification inhibitor nitrous oxide rice urea urease inhibitor
ISSN号	1385-1314
通讯作者	Xu, XK, Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
中文摘要	Strategies used to reduce emissions of N2O and CH4 in rice production normally include irrigation management and fertilization. To date, little information has been published on the measures that can simultaneously reduce both emissions. Effects of application of a urease inhibitor, hydroquinone (HQ), and a nitrification inhibitor, dicyandiamide (DCD) together with urea (U) on N2O and CH4 emission from rice growing were studied in pot experiments. These fertilization treatments were carried out in the presence and absence of wheat straw, applied to the soil surface. Without wheat straw addition, in all treatments with inhibitor(s) the emission of N2O and CH4 was significantly reduced, as compared with the treatment whereby only urea was applied (control). Especially for the U+HQ+DCD treatment, the total emission of N2O and CH4 was about 1/3 and 1/2 of that in the control, respectively. In the presence of wheat straw, the total N2O emission from the U+ HQ+ DCD treatment was about 1/2 of that from the control. The total CH4 emission was less influenced. Wheat straw addition, however, induced a substantial increase in emissions of N2O and CH4. Hence, simultaneous application of organic materials with a high C/N ratio and N-fertilizer (e.g. urea) is not a suitable method to reduce the N2O and CH4 emission. Application of HQ+DCD together with urea seemed to improve the rice growth and to reduce both emissions. The NO3-- N content of the rice plants and denitrification of (NO3- +NO2-)-N might contribute to the N2O emission from flooded rice fields.
学科主题	Soil Science
收录类别	SCI
语种	英语
WOS记录号	WOS:000179359000020
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55441]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Xu, XK,Boeckx, P,Van Cleemput, O,et al. Urease and nitrification inhibitors to reduce emissions of CH4 and N2O in rice production[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2002,64(1-2):203-211.
APA	Xu, XK,Boeckx, P,Van Cleemput, O,&Zhou, LK.(2002).Urease and nitrification inhibitors to reduce emissions of CH4 and N2O in rice production.NUTRIENT CYCLING IN AGROECOSYSTEMS,64(1-2),203-211.
MLA	Xu, XK,et al."Urease and nitrification inhibitors to reduce emissions of CH4 and N2O in rice production".NUTRIENT CYCLING IN AGROECOSYSTEMS 64.1-2(2002):203-211.