包膜控释尿素对高羊茅草坪建植期生长的影响  

Study on the effect of coated controlled-release urea on the growth of tall fescue

作　　者：武良[1,2] 边秀举[1] 徐秋明[2] 谷佳林[2] 

机构地区：[1]河北农业大学园林与旅游学院,河北保定071001 [2]北京市农林科学院植物营养与资源研究所,北京100097

出　　处：《草业科学》2009年第4期139-143,共5页Pratacultural Science

基　　金：北京市科委新型肥料产业化科技保障建设项目(D0706004000091);北京市农科院青年基金项目(2007020414);北京市优秀人才培养项目(20071D020500055);基于创新型乡镇建设的农业新技术研究与示范项目

摘　　要：应用盆栽试验研究了释放期为30d(U30)和80d(U80)的控释包膜尿素一次性基施对高羊茅Festuca arundinacea草坪建植期生长情况的影响。结果表明:在施氮量相等的情况下,单一施用U80处理草坪成坪时间最短,仅为51d,播种85d后,其叶绿素仪读值(SPAD)高于其他处理。出苗后各处理地上生物量呈现先升高后降低的单峰变化趋势。单一施用U80处理草坪成坪后,生长速度较其他处理更为平缓。此外,单一施用U80处理和U80配施30%普通尿素处理,草坪地下生物量积累总量明显高于单一施用普通尿素处理。The effect of coated controlled-release urea on the growth of tall rescue （Festuca arundinacea） was studied in potted condition and two types of coated controlled-release urea （U30 and U80, the release duration was 30 days and 80 days） were used. The results indicated that the turfgrass growing time was the shortest （only 51 days） treated with U80 and its content chlorophyll was higher than other treatments after 85 days growth. The aboveground biomass of turfgrass showed a pattern of increasing at the beginning and declining later. The underground biomass of turfgrass treated with U80 or U80 plus 30% of common urea was significantly higher than other treatments only with common urea （P〈0.05）.

关 键 词：包膜控释尿素 高羊茅 建植期 生物量 

分 类 号：S688.4[农业科学—观赏园艺]