农业科学研究2025，Vol.46Issue(4)：73-79,7.DOI:10.13907/j.cnki.nykxyj.20250412.001
生物炭与脱硫石膏配施对龟裂碱土理化性质的影响
Effects of Biochar and Desulfurization Gypsum on the Physicochemical Properties of Cracked Alkaline Soils
摘要
Abstract
This study investigates the effects of biochar and desulfurization gypsum on improving cracked alkaline soils,specifically focusing on those in the Pingluo region of Ningxia.A field plot experiment was conducted with four treatments:control(CK),application of biochar(C),application of desulfurization gypsum(T),and a combined application of biochar and desulfurization gypsum(T+C).The effects of these treatments on the physicochemical properties of the cracked alkaline soils and sorghum yields were assessed.The results indicate that all three treatments reduce soil alkalinity,pH,and bulk density,while increasing soil organic matter,ammonium nitrogen content,and crop yield.The single application of biochar results in significant increases in soil nitrate nitrogen,cation exchange capacity,and available potassium by 168.83%,55.81%,and 110.09%,respectively,compared to CK;by 253.99%,3.08%,and 81.75%compared to T;and by 152.21%,19.64%,and 89.26%compared to T+C.Additionally,the single application of desulfurization gypsum significantly improves sorghum growth metrics,leading to an 18.99%increase in grain yield compared to CK.Overall,the individual applications of biochar and desulfurization gypsum are more effective in enhancing the physicochemical properties of cracked alkaline soils and increasing sorghum yields than their combined application.关键词
生物炭/脱硫石膏/龟裂碱土/高粱/土壤理化性质Key words
biochar/desulfurized gypsum/cracked alkaline soil/sorghum/soil physicochemical properties分类
农业科技引用本文复制引用
杨恩宇,王珍,张峰举,陈利荣,杨凌彬..生物炭与脱硫石膏配施对龟裂碱土理化性质的影响[J].农业科学研究,2025,46(4):73-79,7.基金项目
国家重点研发计划项目(2021YFD1900603-06) （2021YFD1900603-06）
国家自然科学基金项目(52360029) （52360029）
宁夏自然科学基金项目(2023AAC03111) （2023AAC03111）
