|本期目录/Table of Contents|

[1]隽英华,刘艳,宫亮,等.农田土壤氮素转化特征对冻融作用的响应[J].江苏农业科学,2019,47(21):282-285.
 Juan Yinghua,et al.Response of nitrogen transformation properties to freezing-thawing cycles in farmland soils[J].Jiangsu Agricultural Sciences,2019,47(21):282-285.
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农田土壤氮素转化特征对冻融作用的响应(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第21期
页码:
282-285
栏目:
资源与环境
出版日期:
2019-12-05

文章信息/Info

Title:
Response of nitrogen transformation properties to freezing-thawing cycles in farmland soils
作者:
隽英华 刘艳 宫亮 孙文涛
辽宁省农业科学院植物营养与环境资源研究所,辽宁沈阳 110161
Author(s):
Juan Yinghuaet al
关键词:
农田土壤冻融频数氮素转化微生物量氮可溶性氮组分
Keywords:
-
分类号:
S153.6+1
DOI:
-
文献标志码:
A
摘要:
为了解非生长季农田土壤氮素转化特征,采用室内冻融模拟培养方法研究冻融频数对3种农田土壤(棕壤、褐土、草甸土)微生物量氮及可溶性氮组分含量的影响。结果表明,随着冻融频数增加,除微生物量氮含量呈现先增加后降低外,3种农田土壤可溶性无机氮、可溶性有机氮和可溶性全氮含量均显著增加,这与净氮矿化速率的变化趋势正好相反。不同类型农田土壤氮素转化过程对冻融频数的响应能力不同,其大小顺序为褐土>棕壤、草甸土。说明高肥力土壤对冻融频数响应的缓冲性较强。可见,冻融频数能够促进农田土壤氮素转化,有利于土壤有效氮的累积,为春季作物生长提供足够的氮素,但同时也增加了土壤氮素流失风险。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2018-08-16
基金项目:公益性行业(农业)科研专项(编号:201503118-08);国家重点研发计划(编号:2017YFD0300702、2018YFD0300303)。
作者简介:隽英华(1979—),男,山东莒南人,博士,研究员,主要从事作物施肥与土壤氮素转化的生物化学调控研究。Tel:(024)31023018;E-mail:juanyong_001@sohu.com。
通信作者:孙文涛,博士,研究员,主要从事植物营养与高效施肥研究。Tel:(024
更新日期/Last Update: 2019-11-05