北京地区草地早熟禾的生长特性与养分吸收规律  

Characteristic of Growth and Nutrient Uptake of Poa pratensis Lawn in Beijing Area

作　　者：何春梅[1] 胡林[1] 张福锁[1] 董爱香[1] 边秀举[2] 

机构地区：[1]中国农业大学资环学院,北京100094 [2]河北农业大学,保定071001

出　　处：《中国农业科技导报》2003年第2期50-53,共4页Journal of Agricultural Science and Technology

基　　金：北京市重点自然基金项目 ;编号 60 0 10 0 1;中美合作草坪养护管理研究项目 ;俄勒冈种子理事会 ( OSC MAP)资助

摘　　要：本试验于 2 0 0 0年和 2 0 0 1年在中国农业大学科学园草坪试验基地进行 ,研究了北京地区气候条件下 ,冷季型草坪草—草地早熟禾的生长特性和养分吸收规律。观察表明 ,草地早熟禾在5月生长最快 ;以后随着气温升高生长减慢 ;7、8月份出现不同程度的病害 ,生长量小 ;9月随气温下降恢复生长 ,但草屑累积量没有明显的峰值。分析结果表明 ,草屑 (未经洗涤 )中 N、P、K的含量在 4、5月份及 9月、10月份均较高 ,而 7、8月份较低。草地早熟禾年吸收的 N、P、K养分比例为 9∶ 1∶Field experiments were carried out in the Field Research Park of China Agricultural University during 2000 to 2001 to investigate the characteristic of growth and nutrient uptake of Poa pratensis lawn in Beijing area. The result indicated that the biomass of turfgrass increased quickly in May with suitable temperature and decreased with the high temperature in July and August. And the growth came back in September with the temperature decreasing. Considerable disease patches were observed in July and August. The content on N, P and K in turfgrass shoot was high in April, September and October than that in July and August. The uptake ratio of N∶P∶K was 9∶1∶5.

关 键 词：生长特性 草坪草 草地早熟禾 剪草量 养分 吸收 

分 类 号：S688.4[农业科学—观赏园艺]