改良云贵高原退化红壤人工草地的施肥效应研究  

Effective Fertilization in Deteriorate Pasture of Red-soil in Yunnan-Guizhou Plateau of China

作　　者：文亦芾[1] 蒋文兰[2] 冉繁军[3] 

机构地区：[1]甘肃农业大学草业学院,甘肃兰州730070 [2]甘肃省农业厅,甘肃兰州730030 [3]甘肃草原生态研究所,甘肃兰州730020

出　　处：《草原与草坪》2001年第2期46-48,共3页Grassland and Turf

基　　金："九五"国家科技攻关项目<云贵高原草地畜牧业持续发展技术研究>部分内容 (编号 96-0 16-0 2 -0 1)

摘　　要：通过肥料试验 ,对红壤退化人工草地的合理施肥技术进行了研究。结果表明 :缺磷是导致草地退化的主要养分限制因素 :磷、钾肥配施具有显著的增产作用 ;改良初期氮肥的施用将提高磷肥肥效。Effective fertilization was studied by fertilizer experiment in red soil deteriorate pasture. The results showed that phosphorus was the critical factor for deteriorate pasture in red soil region in Yunnan-Guizhou plateau. Marked pasture yield was obtained by PK-fertilizer. During the initial stage of the improving pasture, P-fertilizer effect was raised by N-fertilizer applied.

关 键 词：云贵高原 红壤地区 退化人工草地 合理施肥 草地退化 

分 类 号：S812.4[农业科学—草业科学]