Acta Agrestia Sinica

›› 2010, Vol. 18 ›› Issue (6): 911-914.DOI: 10.11733/j.issn.1007-0435.2010.06.030

Previous Articles    

Effects of Mixed Application of Both Fast-release Fertilizer and Slow-release Fertilizer on Kentucky Bluegrass in Summer

YANG Xiao-hua1, YANG Yan1, SUN Yan1, YANG Jie-qiong2   

  1. 1. Institute of Grassland Science, China Agricultural University, Beijing 100193, China;
    2. Zhengzhou forest park, Zhengzhou, Henan Province 450008, China
  • Received:2010-01-19 Revised:2010-10-17 Online:2010-12-15 Published:2010-12-15

速效氮肥与缓释肥混施对夏季草地早熟禾的影响

杨晓华1, 杨燕1, 孙彦1, 杨洁琼2   

  1. 1. 中国农业大学草地研究所, 北京, 100193;
    2. 郑州市森林公园, 河南, 郑州, 450008
  • 通讯作者: 孙彦,E-mail:ctsoffice@yahoo.com.cn
  • 作者简介:杨晓华(1984- ),女,硕士,研究方向为草坪与城市绿化,E-mail:xiaohua929@126.com
  • 基金资助:
    国家十一五科技支撑计划(2006BAD16B09-2)资助

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Abstract: The effects of different proportions of fast-release fertilizer and slow-release fertilizer(0,1:1,1:2,2:1,1:3,3:1) on Kentucky bluegrass(Poa pratensis) turf quality were studied in spring trials at the Beijing seed control station(N 40°00′～40°18′,E 116°28′～116°58′).Results indicate that the mixed application of fast-release fertilizer and slow-release fertilizer can maintain high turf quality as well as good lawn color.Meanwhile,the content of total N in turfgrass tissue can be kept stable in order to quickly and sustainably provide the nutrient needs of growth.The best ratio of the two fertilizers for improving lawn color is 1:1.Further,the content of nitrogen in Kentucky bluegrass was highest and stable during the entire experimental period with a 1:1 or 1:2 ratio of the two fertilizers.Kentucky bluegrass has the most stable growth with 1:3 ratios among the treatments.

Key words: Slow-release fertilizer, Fast-release fertilizer, Kentucky bluegrass, Turf quality

摘要： 通过春季对草地早熟禾(Poa pratensis)草坪施用不同比例(速效肥:缓释肥=1:0,1:1,1:2,2:1,1:3,3:1)的速效肥和缓释肥,研究速效肥和缓释肥混施对草地早熟禾生长及草坪质量的影响。研究结果表明:速效肥与缓释肥混施可以持续改善草地早熟禾草坪的颜色,维持草地早熟禾草坪良好质量,保持草坪草组织内N含量的相对稳定,快速持续地满足草坪草生长所需要的养分。其中缓释肥占1/2时改善草坪颜色效果最佳;速效肥与缓释肥比为1:1或1:2时,草地早熟禾组织中的氮素含量最高且在整个试验周期内保持稳定;速效肥与缓释肥比为1:3时草坪生长速度最稳定。

关键词: 草地早熟禾, 速效肥, 缓释肥, 草坪质量

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