沈阳农业大学学报2025，Vol.56Issue(5)：1-13,13.DOI:10.3969/j.issn.1000-1700.2025.05.001
斜发沸石对强化有氧稻系统稻田氮素吸收、转运和分配及淋溶损失的影响
Effects of Zeolite on N Uptake,Translocation,and Allocation and N Leaching in an Intensive Aerobic Rice System
摘要
Abstract
[Objective]The shift of paddy fields subjected from continuously flooded irrigation(ICF)to alternate wetting and drying irrigation(IAWD),and further to intensive aerobic rice system(IIARS)drives significant transformation in the soil-water environment from anaerobic to alternating aerobic-anaerobic,and further to aerobic.This alternation inevitably resulted in varying nitrogen cycles in the paddy ecosystem.Zeolite possesses multiple advantages in agricultural applications,such as water holding,nitrogen conservation,and yield increasing or maintaining under ICF or IAWD paddy fields.However,its effects on N uptake,translocation,allocation and N leaching remained elusive,especially under IIARS.[Methods]The 2-year field experiment was conducted as a split experiment designed in 2022-2023 to explore the impacts of zeolite management(no zeolite,Z0;15 t·hm-2 zeolite amendment,Z15)and irrigation regimes(ICF,IAWD and IIARS)on rice grain yield,water use efficiency(UWE),aboveground biomass(ABM),N uptake,translocation,and allocation,soil NH4+and NO3-and N leaching.[Results]Compared to ICF,IAWD and IIARS significantly decreased N leaching by 13.35%and 1.27%in 2022 and by 13.93%and 4.67%in 2023,respectively.Zeolite amendment significantly increased soil NH4+and NO3-and decreased N leaching.Notably,Z15 significantly increased to 5.7%-19.2%soil NH4+and 16.6%-19.5%soil NO3-over two years,compared to Z0.Consequently,zeolite amendment resulted in significant decreases in N leaching by 12.21%and 12.41%in 2022 and 2023,respectively.Concurrently,zeolite application significantly increased aboveground biomass and N uptake,allocation,and translocation,therefore enhancing rice grain yield and water use efficiency.[Conclusion]Zeolite could enhance N uptake,allocation,and translocation and aboveground biomass,by reducing N leaching and increasing soil NH4+and NO3-,which was beneficial to increase/maintain rice grain yield.Therefore,zeolite can serve as an efficient soil additive to effectively mitigate yield penalty under IIARS.This provides critical insights for the development of water-adapted agriculture on a regional-scale.关键词
水稻/强化有氧稻系统/斜发沸石/氮吸收、转运和分配/氮素淋溶损失Key words
rice/intensive aerobic rice system/clinoptilolite/N uptake,translocation,and allocation/N leaching分类
资源环境引用本文复制引用
陈绪达,刘博洋,陈伟,迟道才,陈涛涛..斜发沸石对强化有氧稻系统稻田氮素吸收、转运和分配及淋溶损失的影响[J].沈阳农业大学学报,2025,56(5):1-13,13.基金项目
国家自然科学基金面上项目(52379043) （52379043）
辽宁省"兴辽英才计划"青年拔尖人才项目(XLYC2403124) （XLYC2403124）
辽宁省教育厅基本科研项目(JYTQN2024014) （JYTQN2024014）
