沼渣基质厚度对高羊茅草皮成坪及移栽效果的影响

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中图分类号：S688.4 文献标识码：A 文章编号：1007-0435（2025）05-1686-08

Abstract： Biogas residue，a solid byproducts generated after anaerobic fermentation in biogas engineering，is commonly utilized through matrification.In this study，the biogas residue derived from corn straw anaerobic fer mentation，was used as substrate for the cultivation of tall fescue sod.Under thickness conditions of 1.5cm ，3.0 cm， 4.5cm ， 6.0cm ，and 7.5cm ， the plant growth performance，turf use characteristics，curling difficulty，root system parameters and diferent antioxidant enzyme activities of transplanted plants of tallfescue were measured. Theresults showed thatthethickness ofthe substrate had significant effects on the growth and development，and formation of tallfescue sod. Specifically，the growth rate and regeneration rate of tallfescue at thicknesses of 3.0 cm and 4.5cm were significantly higher than those of other treatments （ ⋅P<0.05） .The texture，density，cover age，and other lawn characteristics with these two substrate thicknesses were significantly beter than those of other treatments，and facliatated easier sod roling up. Notably，the highest transplant survival rate of 77.5% was reached with a substrate thickness of 3.0cm . Scanning results from Win Rhizo root system showed that the root length， root surface area，and root volume of grass transplanted with 3.0cm and 4.5cm thickness were supe rior to other treatments within the diameter range of 0-5.0mm . A higher total length of root system under two different thicknesses Was beneficial for grass planting.Based on comprehensive analysis，the 3.O-4.5 cm thickness of biogas residue substrate was suitable for tallfescue sod cultivation and transplantion.

Key words：Biogas residue;Substrate thickness ;Tall fescue; Turfgrass;Lawn formation; Transplanting

草坪在城市环境绿化中占据着重要地位，使得草皮市场空间巨大。（剩余8210字）