摘要
通过微区试验研究不同用量(0、45、180、360、540m^3/hm^2)厨余垃圾堆肥对土壤理化性质的影响。结果表明,厨余垃圾堆肥对土壤的影响主要集中在表土层,厨余垃圾堆肥改变了土壤的物理性质,显著增加了土壤养分含量(P<0.05),对土壤的pH值和EC值无显著影响(P>0.05)。当施用量大于45m^3/hm^2,土壤的田间持水量显著增加(P<0.05)。当施用量大于180m^3/hm^2,土壤的干密度显著降低(P<0.05)。当施用量大于180m^3/hm^2时,土壤中的硝态氮显著增加(P<0.05)。当施用量大于360m^3/hm^2时,土壤中的有机质和有效磷显著增加(P<0.05)。当施用量为540m^3/hm^2时,土壤中的硝态氮、有效磷均小于环境风险临界值。
The effects of applying different amounts（0,45,180,360 and 540 m^3/hm^2）of kitchen waste compost（KW）on the physicochemical property of soil were evaluated through micro-region experiment.The result showed that the effects were mainly concentrated in the horizon layer.The KW changed the physical property and increase the nutrient composition of soil（P〈0.05）,but it had no effects on the pH value and EC value of the soil（P〈0.05）.When KW was over 45m^3/hm^2,the field moisture capacity was significantly increased（P〉0.05）.When KW was over 180 m^3/hm^2,the dry density of soil was significantly decreased（P 〉0.05）.When KW was more than 180 m^3/hm^2,the nitrate nitrogen was significantly increased which was positively correlated with the amount of KW（P〈0.05）.When KW was over 360m^3/hm^2 the soil organic matter and available P increased significantly（P〈0.05）,but the change was not significant in subsoil and bottom layers.The nitrate nitrogen and the available P were lower than the critical value of environmental risk when the applied KW was less than 540m^3/hm^2.
出处
《上海交通大学学报（农业科学版）》
2016年第5期92-98,共7页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
上海市绿化和市容管理局科技专项
