干旱区生态环境知识资源中心(Arid): 旱地新型土壤供氮力指标氯仿熏蒸浸提氮

Arid

	旱地新型土壤供氮力指标氯仿熏蒸浸提氮
其他题名	A New Index for Nitrogen Supplying Capacity in Arid Land-Fumigation-Extraction with Chloroform
	宇万太; 姜子绍; 马强; 周桦
ISSN	1000-5684
出版年	2009
卷号	31 期号:6 页码:720-724,728
中文摘要	模拟旱地条件进行盆栽试验,尝试用氯仿熏蒸-浸提法测定土壤供氮力.分析了熏蒸前后各种形态氮素含量的变化,并对黑麦草吸氮量与农田土壤熏蒸-浸提氮进行了相关性分析.结果表明:各种施肥处理以及不同土地利用方式下氯仿熏蒸-浸提氮与黑麦草吸氮量有明显的相关性,氯仿熏蒸浸提的硝态氮和有机氮与吸氮量均呈极显著相关,相关系数分别为0.938和0.942.氯仿熏蒸浸提全氮能全面可靠地反映土壤的供氮力,表明氯仿熏蒸浸提氮是一个良好的土壤供氮力指标,它可以用于估计农田土壤的供氮力.氯仿熏蒸浸提法测定土壤有效氮适于包括碱性土壤和水田土壤在内的各种类型土壤.
英文摘要	A study has been conducted to determine nitrogen supplying capacity in simulation of arid soil by pot experiment with chloroform fumigation-extraction method. The content of ammonium nitrogen, nitration nitrogen and total nitrogen were determined to study the relationship between uptake nitrogen by ryegrass and nitrogen content of different forms. The results showed a good correlation between uptake nitrogen by ryegrass and chloroform fumigation-extraction nitrogen under different fertilizer treatments. There was significant relativity between the content of chloroform fumigation extraction of nitrate, organic nitrogen and N uptake, with the correlation coefficient of 0.938 and 0.942, respectively. The chloroform fumigation extraction of soil total nitrogen can fully and reliably reflect the ability of soil nitrogen supplying, indicating that it is a satisfactory index of chloroform fumigation-extraction to evaluate nitrogen supplying capacity, and can be used to estimate nitrogen supplying capacity in farmlands. Chloroform fumigation-extraction method suitable for determinating soil available nitrogen, in various types of soil, including alkaline soil and paddy soil.
中文关键词	棕壤 ; 潮棕壤 ; 供氮力 ; 氯仿熏蒸浸提氮
英文关键词	brown soil aquic brown soil nitrogen supplying capacity chloroform fumigation-extraction nitrogen
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3725686
来源机构	中国科学院沈阳应用生态研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223864
作者单位	中国科学院沈阳应用生态研究所, 沈阳, 辽宁 110016, 中国
推荐引用方式 GB/T 7714	宇万太,姜子绍,马强,等. 旱地新型土壤供氮力指标氯仿熏蒸浸提氮[J]. 中国科学院沈阳应用生态研究所,2009,31(6):720-724,728.
APA	宇万太,姜子绍,马强,&周桦.(2009).旱地新型土壤供氮力指标氯仿熏蒸浸提氮.,31(6),720-724,728.
MLA	宇万太,et al."旱地新型土壤供氮力指标氯仿熏蒸浸提氮".31.6(2009):720-724,728.