Acta Agrestia Sinica

›› 2002, Vol. 10 ›› Issue (3): 203-206.DOI: 10.11733/j.issn.1007-0435.2002.03.010

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Effect of Nitrogen and Potassium Application on the Disease of Tall Fescue Turf Under Field

DONG Ai-xiang1, Hu Lin1, ZHAO Mei-qi2, ZHANG Xin-min1, ZHANG Fu-suo1   

  1. 1. The Plant Nutrition Department of China Agricultural University, Beijing 100094, China;
    2. The Plant Protection Institution of China Agricultural University, Beijing 100094, China
  • Received:2001-10-25 Revised:2002-04-25 Online:2002-08-15 Published:2002-08-15

夏季施氮、钾肥对高羊茅褐斑病的影响

董爱香1, 胡林1, 赵美琦2, 张新民1, 张福锁1   

  1. 1. 中国农业大学资环学院, 北京, 100094;
    2. 中国农业大学植保学院, 北京, 100094
  • 作者简介:董爱香(1970- ),女,山西太谷人,讲师,博士
  • 基金资助:
    北京市重点自然基金项目(编号6001001);北京抗旱、抗病、长绿草坪草种选育及管理技术;中美合作草坪养护管理研究项目;俄勒冈种子理事会(OSCMAP)资助

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Abstract: The disease investigation of tall fescue turfgrass was studied under different nitrogen and potassium application treatments in the field.The results showed that the potassium application rate and the interaction of nitrogen and potasssium had not significant effect on the degree of disease occurring,the different nitrogen application treatments mainly effected the rate of disease spreading as it says the higher rates of nitrogen appliction in the experiment,the more spreading of the disease,but the recovery speed was slowly.

Key words: Tall Fescue, Degree of disease occurring, Nitrogen, Potassium, Speed of spread

摘要： 在大田条件下,研究高羊茅施用氮、钾肥对夏季褐斑病发病的影响。结果表明,施钾水平的高低及氮、钾交互作用对褐斑病发病的影响不大。夏季增施氮肥减轻了褐班病发病的严重度,但是加快了病害流行速率,施氮越高,病害扩展速率越快,恢复速率越慢。

关键词: 高羊茅, 发病严重重度, 氮、钾, 流行速率

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