农学学报2025，Vol.15Issue(3)：51-59,9.
不同有机物料与粘土矿物配施对新垦水田土壤有机碳积累的影响
Effects of Combined Application of Different Organic Materials and Clay Minerals on Accumulation of Organic Carbon in Newly Cultivated Paddy Soils
摘要
Abstract
To understand the effects of combined application of organic materials with different sources and clay minerals on the improvement of soil organic matter in newly reclaimed paddy fields,two newly reclaimed red soil paddy fields with different textures,including paddy fields on red sandstone soil and paddy field on yellowish red soil in Zhejiang Province,were selected to explore the mineralization characteristics of different organic materials in newly reclaimed red soil paddy fields by indoor simulation cultivation.The effects of different organic material combination application on soil organic carbon accumulation and composition,as well as the effects of organic materials-clay mineral combination application on organic carbon accumulation in the soils were analyzed.The results showed that the mineralization rate of different organic materials in the soils was different.The application of biochar,weathered coal humic acid,peat and branch compost was conducive to the accumulation of soil organic carbon,and the application of biological manure was conducive to improving soil microbial biomass.The combination of biochar-weathered coal-biological manure,biochar-branch compost-biological manure or peat-straw-biological manure was better for improvement of soil organic carbon.The study on the effects of organic material combinations in different proportions on the accumulation of organic carbon in the soils showed that three proportioning schemes,namely,biochar(2/5)+weathered coal humic acid(1/5)+biological manure(2/5),biochar(2/5)+branch compost(1/5)+biological manure(2/5),and peat(2/5)+straw(1/5)+biological manure(2/5),were more appropriate for the overall improvement of soil organic carbon quality in new paddy fields.At the same time of applying organic materials,the application of montmorillonite in new sandy loamy paddy field was conducive to the improvement of soil water stability aggregates,and could promote the joint improvement of organic carbon and microbial biomass carbon,and increase the stability of soil organic carbon.关键词
新垦水田/有机碳数量与质量/提升/有机物料/粘土矿物/土壤团聚体/稳定性/微生物生物量Key words
newly cultivated paddy fields/quantity and quality of organic carbon/improvement/organic materials/clay minerals/soil aggregates/stability/microbial biomass分类
农业科学引用本文复制引用
尹献远,张鑫,徐秋桐,章明奎..不同有机物料与粘土矿物配施对新垦水田土壤有机碳积累的影响[J].农学学报,2025,15(3):51-59,9.基金项目
浙江省"尖兵""领雁"研究攻关计划项目"新垦土壤肥力提升技术—浙江省新垦红壤水田高效熟化技术研究与示范"(2022C02036). （2022C02036）
