干旱区生态环境知识资源中心(Arid): 振荡浸提时间对不同保存方式土壤NO_3-N 和NH

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	振荡浸提时间对不同保存方式土壤NO_3-N 和NH_4-N含量测定值的影响
其他题名	Effect of Oscillation and Extraction Time on Measurement of Content of NO_3-N and NH_4-N in Soil Held by Different Saving Methods
	朱靖蓉; 王成; 帕尔哈提; 肖英; 曹小倩; 华振宇
来源期刊	新疆农业科学
ISSN	1001-4330
出版年	2014
卷号	51 期号:4 页码:761-767
中文摘要	【目的】研究振荡浸提时间对土壤NO_3-N、NH_4-N测定结果的影响,为土壤氮素研究提供分析测定的理论依据。【方法】采集高、中、低三种肥力灰漠土,2 mol/L KC1溶液作浸提剂,以不同振荡的时间浸提鲜土、冷藏土和冷冻土,用连续流动注射分析仪测定浸提液中NO_3-N、NH_4-N含量。【结果】不同肥力土壤以不同方式保存后,振荡浸提时间对土壤硝态氮、铵态氮测定结果有明显的影响,鲜土、冷冻土测定结果比冷藏土稳定。振荡浸提30~60 min时,NO_3-N和NH_4-N的测定值相对稳定。【结论】从经济、可靠的角度衡量,无论是新鲜土壤,还是冷藏或冷冻土壤,测定土壤矿质氮含量的振荡浸提时间为30 min即可。对于土壤矿质氮含量极高的土壤,振荡浸提时间应延长至60 min。
英文摘要	【Objective】The test aims to study the content of NO_3-N and NH_4-N in soil influenced by different oscillation and extraction times in order to provide theoretical foundation for analysis and measurement of soil nitrogen research.【Method】The test took high fertility, middle fertility, and low fertility, three gray desert soils as the research objects, 2 mol/L KCl solution as the extract liquid and different oscillation times were set to extract the fresh, refrigeration, freezing soil, and continuous flow analyzer was used to detect the content of NO_3-N and NH_4-N in extract liquid.【Result】While different fertility soils were saved in different methods, oscillation and extraction time had distinct effect on the measurement values of NO_3-N、NH_4-N in soil, and measurement values of fresh and freezing soil were more steady than refrigeration soil. While oscillation and extraction time at 30 to 60 min, measurement values of NO_3-N and NH_4-N were stable relatively. 【Conclusion】Whatever fresh, refrigeration, or freezing soil were, 30 oscillation and extraction minutes time for measuring the content of mineral nitrogen in soil could be considered suitable from the economic and reliable perspective. But for the soil that had high content of mineral nitrogen, the oscillation and extraction time should be extended to 60 min.
中文关键词	振荡浸提时间 ; 保存方式 ; 灰漠土
英文关键词	NO_3-N NH_4-N NO_3-N NH_4-N oscillation and extraction time saving method gray desert soil
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:5158951
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231941
作者单位	新疆农业科学院农业质量标准与检测技术研究所, 乌鲁木齐, 新疆 830091, 中国
推荐引用方式 GB/T 7714	朱靖蓉,王成,帕尔哈提,等. 振荡浸提时间对不同保存方式土壤NO_3-N 和NH_4-N含量测定值的影响[J],2014,51(4):761-767.
APA	朱靖蓉,王成,帕尔哈提,肖英,曹小倩,&华振宇.(2014).振荡浸提时间对不同保存方式土壤NO_3-N 和NH_4-N含量测定值的影响.新疆农业科学,51(4),761-767.
MLA	朱靖蓉,et al."振荡浸提时间对不同保存方式土壤NO_3-N 和NH_4-N含量测定值的影响".新疆农业科学 51.4(2014):761-767.