| 秋施氮肥对冷季型草坪坪用性状的影响及其综合评价 |
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| 引用本文： | 于铁峰,刘晓静,李文卿,蒯佳林,郝凤,常红军.秋施氮肥对冷季型草坪坪用性状的影响及其综合评价[J].甘肃农业大学学报,2010,45(6). |
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| 作者姓名： | 于铁峰 刘晓静 李文卿 蒯佳林 郝凤 常红军 |
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| 摘 要： | 通过大田试验研究了秋施氮肥(尿素与7种不同类型缓释氮肥)对冷季型混播草坪草生长的影响,并应用灰色关联度分析方法对施肥后45d的草坪进行综合评价.结果表明:速效氮肥能迅速提高草坪草叶绿素及地上生物量(P0.05),改变草坪草颜色;而缓效氮肥更有利于提高叶片分蘖,减缓草坪生长速度的波动,提高草坪的均一性.灰色关联度分析显示,8种施氮处理草坪坪用性状评价优劣值依次为:SUD1SUD2木质素缓释氮肥SUDT复合IBDU有机缓释氮肥复合MU尿素,缓效氮肥优于速效氮肥.
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| 关 键 词： | 草坪 缓释肥 灰色关联度分析 |
Effects of fall nitrogen fertilization on characteristics of cool-season turf and its comprehensive evaluation |
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| Abstract: | A field experiment was carried out to study the effects of fall N fertilization (urea and 7 types of slow release nitrogen fertilizer) on the growth of cool-season turf grass,and the turf was comprehensively evaluated by grey relational grade analysis method after fertilized for 45 days.The results indicated that fast-release fertilizer could quickly change the color of turf grass and improve the above ground biomass,while the slow-release nitrogen fertilizer was more conductive to improve the tiller,slow down the growth rate of turf grass,improve the uniformity of turf.The effects of 8 fertilizer showed as followed in the order of evaluating value:SUD1> SUD2> lignin slow-release nitrogen fertilizer> SUDT> composite IBDU>organic slow-release nitrogen fertilizer >composite MU> urea. |
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| Keywords: | turf grass slow-release fertilizer grey relational grade analysis |
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