微生物菌肥与土壤调理剂配合施用对设施次生盐渍化土壤的改良作用  

Microbial Fertilizers and Soil Conditioners Improvement Effect of Combined Application on Secondary Salinization Soil

作　　者：李辉 LI Hui(Changping District Farmland Protection Station in Beijing,Beijing 102200)

机构地区：[1]北京市昌平区耕地保护站,北京102200

出　　处：《北方园艺》2024年第1期85-92,共8页Northern Horticulture

基　　金：2022年昌平区化肥减量及新型肥料应用资助项目(11011422T000000480763)。

摘　　要：以黄瓜为试材,采用设施栽培的方法,研究了由于多年连续种植等造成的土壤板结、土壤盐分过高、微生物活性降低等土壤次生盐渍化问题,以期通过微生物菌肥和土壤调理剂配合施用,找到改良土壤次生盐渍化的方法。结果表明:次生盐渍化土壤同时添加微生物菌肥和土壤调理剂能改善土壤板结状况,降低土壤容重;降低表层土壤中的水溶性盐离子Ca^(2+)、Na^(+)、K^(+)、HCO_(3)^(-)、Cl^(-)含量;同时,Ca^(2+)和Na^(+)向深层迁移,在20~40 cm的土层出现累积;能改变土壤微生物菌落结构,增加厚壁菌群、放线菌群等有益微生物的比例,增加土壤环境物种多样性和丰富度。Taking cucumber as experimental materials,using the method of facility cultivation,the problems of soil secondary salinization,such as soil compaction,high soil salinity and reduced microbial activity caused by many years of continuous planting were studied,in order to find a way to improve soil secondary salinization through the combination application of microbial fertilizers and soil conditioners.The results showed that the addition of microbial fertilizers and soil conditioners could improve soil consolidation and reduce soil bulk density.The contents of water-soluble salt ions Ca^(2+),Na^(+),K^(+),HCO_(3)^(-) and Cl^(-)in the topsoil were decreased,while Ca^(2+)and Na+migrated to the deep layer and accumulated in the soil layer of 20-40 cm,the species diversity and richness of soil environment were increased by increasing the proportion of beneficial microorganisms such as Firmicutes and Actinomycetes.

关 键 词：土壤次生盐渍化 微生物菌肥 土壤调理剂 物种多样性 水溶性盐离子 

分 类 号：S144[农业科学—肥料学]