速效氮肥与缓释肥混施对夏季草地早熟禾的影响  

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

作　　者：杨晓华[1] 杨燕[1] 孙彦[1] 杨洁琼 

机构地区：[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

出　　处：《草地学报》2010年第6期911-914,共4页Acta Agrestia Sinica

基　　金：国家十一五科技支撑计划(2006BAD16B09-2)资助

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。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.

关 键 词：草地早熟禾 速效肥 缓释肥 草坪质量 

分 类 号：S145.6[农业科学—肥料学] S688.4[农业科学—农业基础科学]