干旱区生态环境知识资源中心(Arid): 长期施肥对河西灌漠土有机氮组分的影响

Arid

	长期施肥对河西灌漠土有机氮组分的影响
其他题名	Effects of long-term fertilization on the speciation organic nitrogen in irrigated desert soil
	王克鹏 1; 张仁陟 1; 索东让 2
ISSN	1672-2175
出版年	2008
卷号	17 期号:2 页码:699-703
中文摘要	在长期小麦和玉米轮作的基础小，通过单施化肥以及化肥与其它有机肥料的配合使用，研究不同施肥对河西灌漠土有机氮组分的影响。采用1965年Bremner提出的土壤有机氮分级方法，对22年有机肥与化肥定位试验中的耕层土壤有机氮组成进行分级。结果表明，长期施用化肥和有机肥对河西灌漠土全氮和土壤有机氮组成有显著影响，施肥对不同形态有机氮的影响取决于肥料种类。与单施化肥相比，有机肥与化肥配合施用后显著提高了土壤全氮、酸解性氮与非酸解性氮的含量。在酸解性氮中，氨基酸态氮和酸解未知氮显著增加，氨基糖态氮含量也有所提高。与不施肥相比，施用氮肥显著提高了土壤全氮、酸解性氮与非酸解性氮的含最。在酸解性氮中，化学氮肥显著提高了铵态氮的含量，对氨基酸氮、氨基糖氮和酸解未知态氮影响较小。施用磷、钾肥对河西灌漠土余氮和有机氮各组分含量影响较小。
英文摘要	Based on long-term rotation of wheat and maize, the objective of the research was to study the effect of long-term chemical N fertilization or the mixture of chemical N fertilizer and other manures on irrigated desert soil organic N components. Organic nitrogen （N） forms in irrigated desert soil were quantified in a 22-year fertilization trial using the method proposed by Bremner in 1965. Result showed that soil total nitrogen and organic nitrogen fractions were significantly influenced by long-term application of chemical and varied with fertilizer species. Compared with application of N and P fertilizes, manure with N fertilizes greatly increased the contents of total N, acid hydrolysable N and nonhydrolysable N; Of the forms of acid hydrolysable N, amino acid N and hydrolysable unidentified N were significantly increased and amino sugar N is increased also by manure with N and P fertilizers. Similar to manure with chemical fertilizer, N application significantly increased total N, acid hydrolysable N and nonhydrolysable N. Compared to the plots without N addition, N fertilizer significantly increased ammonium N but little affects amino acid nitrogen; amino sugar N and hydrolysable unidentified N. P and K fertilizer application did not significantly affect total N and organic N forms in irrigated desert soil.
中文关键词	长期施肥 ; 土壤有机氮组分 ; 有机肥料 ; 灌漠土
英文关键词	long-term fertilization soil organic nitrogen fractions organic fertilizer irrigated 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:3298312
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222651
作者单位	1.甘肃农业大学资源与环境学院, 兰州, 甘肃 730070, 中国; 2.张掖市农科院, 张掖, 甘肃 734000, 中国
推荐引用方式 GB/T 7714	王克鹏,张仁陟,索东让. 长期施肥对河西灌漠土有机氮组分的影响[J]. 甘肃农业大学,2008,17(2):699-703.
APA	王克鹏,张仁陟,&索东让.(2008).长期施肥对河西灌漠土有机氮组分的影响.,17(2),699-703.
MLA	王克鹏,et al."长期施肥对河西灌漠土有机氮组分的影响".17.2(2008):699-703.