论文部分内容阅读
为了改良草坪土壤,有效利用菇渣资源,以覆盖(F)和混合(H)方式将双孢蘑菇菇渣施入到田间土壤种植早熟禾草坪,比较两种处理对坪床土壤理化性状、微生物多样性及草坪生长的影响.结果表明,菇渣使坪床土壤p H值降低,电导率(EC)升高,容重减小,总孔隙度增大,持水孔隙增大,显著增加坪床土壤的含氮量,F和H处理含氮量分别比对照高出约9倍和4倍;施入菇渣显著增加土壤的脲酶活性,高出对照约2倍,F处理对酶活性的提高更显著;菇渣还能够增加草坪根际土壤细菌群落多样性,F处理的细菌多样性更丰富.相关性分析表明,细菌多样性与土壤脲酶、磷酸酶活及理化性质之间显著相关.施入菇渣可以增加草坪生物量,H处理的草坪表现更优,地上、地下干重分别比对照高49%和39%.综上,双孢蘑菇菇渣能够改善坪床土壤,促进草坪生长,在草坪应用中推荐使用混合施入方式.
In order to improve the lawn soil, mushroom residue resources were used effectively, and Agaricus bisporus Mushroom Slag was applied to field soil to cover Poa turcicum with cover (F) and mix (H) methods. The effects of the two treatments on soil physical and chemical properties, Diversity and turfgrass growth.The results showed that the mushroom residue reduced p H value, conductivity (EC) and bulk density decreased, total porosity increased, water holding porosity increased, Soil nitrogen content, F and H treatment of nitrogen were about 9 times and 4 times higher than the control; application of mushroom residue significantly increased soil urease activity, about 2 times higher than the control, F treatment on the enzyme activity But the bacterial diversity in F rhizosphere soil was more abundant.The correlation analysis showed that there was a significant correlation between bacterial diversity and soil urease, phosphatase activity and physicochemical properties Mushroom residue can increase the lawn biomass, H-treated turf better performance, above ground and underground dry weight respectively 49% and 39% higher than the control.In summary, Agaricus bisporus Mushroom residue can improve soil bed and promote lawn growth, Recommended for use in lawn applications.