植丝对高羊茅草坪生长及氮、磷养分去向的影响  

Effects of fiber implantation on Festuca arundinacea growth and nitrogen and phosphorus nutrient fate in turf

作　　者：唐斌 李富翠 张亚楠 陈佳宝 范志浩 汪梦寒 宋桂龙[1] 韩烈保[1] TANG Bin;LI Fucui;ZHANG Ya’nan;CHEN Jiabao;FAN Zhihao;WANG Menghan;SONG Guilong;HAN Liebao(Turfgrass Research Institute,Beijing Forestry University,Beijing 100083,China)

机构地区：[1]北京林业大学草坪研究所,北京100083

出　　处：《草业科学》2023年第10期2619-2628,共10页Pratacultural Science

基　　金：中央高校基本科研业务费专项资金(BLX201940);国家自然基金面上项目(31971770)。

摘　　要：为研究植丝式混合草坪中人造草丝对草坪草生长及养分去向的影响,本研究以高羊茅(Festuca arundinacea)品种‘交战IV’为试验材料,以不植丝处理为对照,研究植丝对草坪坪观质量、生长速度和生物量、草坪草养分吸收、草坪土壤中养分残留以及养分淋溶损失的影响。结果表明:植丝促进了草坪草的生长并提升了草坪的坪观质量。植丝后草坪草氮素和磷素吸收量增加,其中草屑和根系氮素的吸收量最高分别增加了30.0%和40.6%,草屑磷素吸收量最高增加了24.8%。土壤中矿质氮和速效磷残留量增加,分别最高增加了33.9%和87.0%。硝态氮淋溶损失量减少,最大降幅可达79.3%。因此,植丝促进了草坪草生长,提高了草坪草氮素和磷素利用效率,降低了草坪氮素淋溶风险。The aim of this study was to determine the effects of artificial grass fiber on the growth and nutrient fate of turfgrass in a stitched hybrid turf.We used the tall fescue(Festuca arundinacea)variety,“crossfire IV”as the test material and no fiber treatment as the control.The effects of fiber implantation on turf quality,growth rate,biomass,nutrient uptake,nutrient residue in the soil,and nutrient leaching were measured.The results showed that fiber implantation promoted the growth of turfgrass and improved the turf quality.Nitrogen and phosphorus uptake by the turfgrass increased after fiber implantation.Nitrogen uptake by the clippings and roots increased by 30.0%and 40.6%,respectively,and phosphorus uptake by the grass clippings increased by 24.8%.Residual mineral nitrogen and available phosphorus increased by 33.9%and 87.0%,respectively.Nitrate nitrogen leaching decreased by up to 79.3%.In summary,fiber implantation promoted the growth of turfgrass,improved the nitrogen and phosphorus use efficiency of turfgrass,and reduced the risk of nitrogen leaching.

关 键 词：植丝式混合草坪 草坪坪观质量 生长速度 生物量 养分吸收 养分残留 养分淋溶损失 

分 类 号：S688.4[农业科学—观赏园艺]