不同施肥处理对稻田氧化亚氮排放的影响

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	不同施肥处理对稻田氧化亚氮排放的影响
	秦晓波 1; 李玉娥 1; 刘克樱 2; 万运帆 1; 高清竹 1
刊名	中国农业气象
	2006
卷号	27 期号:4 页码:273-276
关键词	长期施肥稻田 N2O排放影响因素
ISSN号	1000-6362
其他题名	Effects of Different Fertilization Treatments on N2O Emission from Rice Fields in Hunan Province
英文摘要	2004年在湖南省望城县黄金乡长期肥料监测站对不同施肥处理稻田中N2O排放通量进行了连续观测,发现不同施肥处理稻田中N2O排放季节变化具有一致的规律:生长中前期N2O排放量较小,晒田及之后排放量较大.各施肥处理N2O排放的差异早晚稻不同,早稻各处理间差异不显著,NPK处理排放量最大,为1.48kg·hm-2;晚稻各处理差异极显著(p＜0.01),NPKS处理排放量最大,为1.40kg·hm-2;同是有机肥和化肥配施,早稻NKM处理N2O排放大于NPKS处理,两者差异不显著,而晚稻NPKS处理N2O排放远大于NKM处理,二者差异显著(p＜0.05).稻田水分状况也影响N2O排放,淹水期N2O排放较少,落干期N2O排放较多.; The N2O emission flux on the rice fields by long-term different fertilization treatments was continuously observed at Wangcheng County of Hunan Province in 2004, by using the static chamber-GC theory with manual method. Nj O emissions from rice field had obvious seasonal variations. The N2 O emission flux was larger after drainage than that during early and middle growing periods. There existed the differences between early and late rice. There was no significant difference among the different fertilization treatments for the early rice fields,while the differences were extremely significant (p<0. 01) for the late rice fields. The maximum N2O emission flux with 1. 48 kg/ha occurred in the early rice fields by NPK treatment, while the maximum value with 1. 40 kg/ha was by NPKS treatment in the late rice fields. Being the organic fertilization with chemical fertilization treatment, no significant differences among the treatments were observed in early rice fields. However, N2O emission from NPKS treatment was larger than NKM treatment, and there was significant difference {p<0. 05) between them. The seasonal variation of N2O emission flux was significantly determined by water situation of rice fields. The N2O emission flux was larger during drainage than flooding.
学科主题	农业基础科学
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/17456]
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.中国农业科学院农业环境与可持续发展研究所, 北京, 100081 2.湖南省土壤肥料研究所
推荐引用方式 GB/T 7714	秦晓波,李玉娥,刘克樱,等. 不同施肥处理对稻田氧化亚氮排放的影响[J]. 中国农业气象,2006,27(4):273-276.
APA	秦晓波,李玉娥,刘克樱,万运帆,&高清竹.(2006).不同施肥处理对稻田氧化亚氮排放的影响.中国农业气象,27(4),273-276.
MLA	秦晓波,et al."不同施肥处理对稻田氧化亚氮排放的影响".中国农业气象 27.4(2006):273-276.