摘要
以中粗河沙、结构良好的黄壤土为材料,设5个不同沙土配比处理,模拟运动场草坪坪床结构,研究不同种植层坪床结构对草坪生物学特性和草坪质量的影响。结果表明:草坪草株高大体上表现为随含沙量的增加而降低;全土、75%沙+25%土结构的地上生物量优于25%沙+75%土、50%沙+50%土结构,但地下生物量表现较差,全沙结构的生物量处于中等水平;全土结构根系短而粗,75%沙+25%土结构根系长而细,且根尖数多,其他处理的根系形态处于中等水平。草坪质量综合评价结果为75%沙+25%土和全沙结构的质量等级是Ⅴ,表现最优;全土、25%沙+75%土、50%沙+50%土结构的质量等级是Ⅳ,表现良好。
Sand and well structured yellow soils were used as materials in this study. Different sand and soil proportions were set as five treatments,which was used to simulate turf - bed structure of sport field. The effects of different turf beds on turf biological characteristics and turf quality were studied. The result showed that the plant height decreased with the increase of sand content. The aboveground biomass of whole soil,75% sand ＋25% soil were better than those of 25% sand ＋ 75% soil,and 50% sand ＋50% soil structure;but the underground biomass was on the contrary situation of the aboveground biomass,the underground biomass of the whole sand structure was at the moderate level. The root of whole soil structure was short and thick, and the root system of 75 % sand ＋25% soil was long and thin, and the root tip was more. The root morphology of other treatments was in the middle level. Comprehensively assessment,the turf quality grades of treatment 75% sand ＋25% soil, and whole sand structure were the best （ grade V ） . The quality grade of the whole soil,25% sand ＋75% soil,and 50% sand ＋50% soil were IV,had good performance.
出处
《作物研究》
2017年第5期528-532,共5页
Crop Research
基金
长沙市现代农业科技资金专项(K1403026-31)
关键词
运动场草坪
坪床结构
沙土配比
草坪生物学
sports turf
turf - bed structure
sand structure ratio
turf biological
