Relationship between Urease Activity and Urea Application Rate in Alpine Regions

doi:10.11733/j.issn.1007-0435.2007.01.018

›› 2007, Vol. 15 ›› Issue (1): 95-96.DOI: 10.11733/j.issn.1007-0435.2007.01.018

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Relationship between Urease Activity and Urea Application Rate in Alpine Regions

PU Xiao-peng, HU Zi-zhi, ZHANG De-gang, XU Chang-ling, TAN Yan-rong

Grassland College of Gansu Agriculture University, Lanzhou, Gansu Province 730070, China

Received:2006-12-01 Revised:2006-12-01 Online:2007-02-15 Published:2007-02-15

高寒地区土壤脲酶活性与尿素用量的关系(简报)

蒲小鹏, 胡自治, 张德罡, 徐长林, 谈嫣蓉

甘肃农业大学草业学院, 甘肃, 兰州, 730070

作者简介:蒲小鹏(1970- ),男,副教授,主要从事草地资源调查研究,E-mail:gspxp@gsau.edu.cn
基金资助:
甘肃省教育厅(032-07);甘肃省科技攻关项目(2GS035-A41-001-04)

Abstract

Key words: Alpine region, Urease activity, Urea, Oat

摘要： 施氮是保障禾本科牧草与饲料作物高产的一项重要栽培措施,但氮肥施用过量往往会导致氮肥利用率下降,环境污染等负面效应的发生^[1~2]。燕麦抗寒性强、产量高、营养丰富,是我国高寒地区的主要饲料作物之一^[1,3]。尿素是燕麦生产中使用最为广泛的肥料,施入土壤后,经唯一能水解尿素的土壤酶-脲酶催化为铵态氮后才可被利用。土壤中脲酶活性的高低直接关系到尿素的利用效率^[4~6]。本试验拟研究探讨燕麦生产中氮肥使用量与土壤脲酶的关系,为高寒地区燕麦生产与环境保护提供一定的科学指导。

关键词: 高寒地区, 脲酶活性, 尿素, 燕麦

CLC Number:

S812.2

PU Xiao-peng, HU Zi-zhi, ZHANG De-gang, XU Chang-ling, TAN Yan-rong. Relationship between Urease Activity and Urea Application Rate in Alpine Regions[J]. , 2007, 15(1): 95-96.

蒲小鹏, 胡自治, 张德罡, 徐长林, 谈嫣蓉. 高寒地区土壤脲酶活性与尿素用量的关系(简报)[J]. , 2007, 15(1): 95-96.

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Relationship between Urease Activity and Urea Application Rate in Alpine Regions

高寒地区土壤脲酶活性与尿素用量的关系(简报)

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