土壤与作物2024，Vol.13Issue(3)：340-347,8.DOI:10.11689/sc.2023102601
有机肥施用改良盐碱地及其作用机理
Amelioration of saline-alkaline land and its mechanism by organic fertilizer
摘要
Abstract
Saline-alkaline land is an important reserve resource of cultivated land.Organic fertilizer has abundant sources and broad prospects in saline-alkaline land improvement.This article comprehensively analyzes the progress of organic fertilizer in improving the physical and chemical properties,nutrients,soil microorganisms,and enzyme activity of saline-alkaline soil.The main mechanisms of organic fertilizer application in ameliorating saline-alkaline soil are:(1)Improving soil structure,increasing large particle soil aggregates,increasing soil porosity and permeability,reducing soil salinity;(2)Increasing the content of nutrients and organic matter,improving soil nutrients;(3)Optimizing the structure of soil microbial community,promoting the production of organic acids by microorganisms,and enhancing soil enzyme activity.It is recommended to strengthen the research and development of specialized functional organic fertilizers for saline-alkaline land,screen the suitable organic fertilizer application rates for light,medium,and severe saline-alkaline land in different regions,which would provide technical support for the improvement and utilization of saline-alkaline land.关键词
盐碱地/有机肥/作用机理/团聚体/有机质Key words
saline-alkaline land/organic fertilizer/mechanism of interaction/aggregate/organic matter分类
农业科技引用本文复制引用
刘俊青,刘淼,梁正伟..有机肥施用改良盐碱地及其作用机理[J].土壤与作物,2024,13(3):340-347,8.基金项目
国家重点研发计划项目(2022YFD1500502) （2022YFD1500502）
吉林省盐碱地高效治理与综合利用科技创新重大专项(20240203002NC) （20240203002NC）
黑土地保护与利用科技创新工程专项(XDA28110101) （XDA28110101）
吉林省与中国科学院科技合作高新技术产业化专项(2023SYHZ0045) （2023SYHZ0045）
国家自然科学基金项目(42377040). （42377040）
