不同草坪草品种在不同养护水平条件下成坪性状评价

通过对10种草坪草品种在不同施肥灌溉条件下的长势、地上部生物量、成坪性状的分析,研究施肥灌溉水平对草坪草性状的影响。结果表明,施肥灌溉处理有利于提高大部分草坪草的生活力、青绿期和抗高、低温的能力,但也会引起草坪草生长过快,增加修剪强度;较低水平(尿素5 g/m2)的氮肥施用量和适度的灌溉对禾本科草坪草的成坪性状改善明显且不需过高的养护管理水平。施氮肥对羊茅各品种、早熟禾各品种和帕特翦股颖、多年生黑麦草效果最显著,草坪性状与成坪质量有大幅提高。

Evaluation on Turf Traits of Different Turfgrass Varieties under Different Maintenance Levels

Ten turfgrass varieties were tested under different irrigation and fertilization levels to study the effects on their turfgrass trait by analyzing growth,aerial biomass and turf trait.The results showed that fertilization and irrigation could improve the vigor index,green phase and hot or cold resistance of most tested varieties,but cause its excessive growth, which resulted in increasing cutting intensity.Lower application levels of nitrogen fertilizer and rational irrigation could improve the turfgrass trait without the high maintenance management level.In short,the nitrogen fertilizer could greatly improve the turf trait and lawn quality of Festuca arundinacea,Poa pratensis,Agrostis stolonifera and Lolium perenne varieties.