土壤改良剂对大棚辣椒连作土壤理化性质的影响

Effect of Soil Improvement Agent on Physicochemical Properties of Continuous Cropping Soil of Pepper Plastic Sheds

[目的]为了研究土壤改良剂对上海高桥地区不同连作年限土壤理化性质的影响。[方法]选取连作年限土壤为1、5和6年的3个大棚,分别测定土壤p H、电导率、有机质、全氮、全磷、全钾等主要养分含量。[结果]施用土壤改良剂能够有效缓解土壤盐渍化和酸化程度,显著增加土壤有机质含量,均衡土壤营养元素,改善施用有机肥导致的元素富集现象,明显改良土壤理化性质。[结论]在上海高桥地区的农业实际生产中,施用主要成分为石灰氮、秸秆和有机质的土壤改良剂是切实可行的,能够明显改善高桥地区土壤的理化性质。

[Objective] The research aimed to study the effects of soil improvement agent on the physicochemical properties of continuous cropping soil of pepper plastic sheds with different planting years in Gaoqiao area,Shanghai City.[Method] Soil pH,EC,organic matter,total N,total P,total K and other major nutrients were detected.[Result] The application of soil improvement agent could ease the degree of soil salinization and soil acidification effectively,increase soil organic matter content obviously,prevent the nutrient enrichment and improve the soil physical and chemical properties significantly.[Conclusion] In the agricultural production in Gaoqiao District,Shanghai,the application of the soil improvement agent with the main component of lime,straw and organic matter was feasible,which could improve the soil physicochemical properties obviously.