草业学报2026，Vol.35Issue(3)：68-82,15.DOI:10.11686/cyxb2025121
"六位一体"模式对宁夏盐碱地土壤水盐动态、质量等级及青贮玉米产能的影响
Effects of a'six-aspect integrated'pattern on dynamic changes in soil water and salt contents,quality of cultivated land,and silage maize productivity in saline-alkali land in the Ningxia irrigation area
摘要
Abstract
Single technologies have limited effectiveness in remediating saline-alkali soil and improving the low forage productivity in the Ningxia Yellow River Irrigation District.To address this issue,we explored the effectiveness of a combined strategy of'soil improvement for crop adaptation'and'crop adaptation to soil conditions'.Focusing on six strategic technical aspects(i.e.,soil amendments,fertilization,seed selection,tillage practices,irrigation,and drainage/salt management),we established a novel'six-aspect integrated'comprehensive saline-alkali soil remediation pattern.This pattern was compared with conventional practices to evaluate its effects on soil water-salt dynamics,the soil quality grade,and silage maize(Zea mays)productivity.The results show that,after 2 consecutive years of implementation,the'six-aspect integrated'pattern achieved the following advantages compared with conventional practices.The volumetric water content in the 0-15 cm soil layer was decreased by 3.05%while that in the 15-30 cm layer was increased by 3.01%.The total salt content in the 0-30 cm soil layer was decreased by 30.42%,although there was a 12.36%increase in groundwater mineralization.The soil bulk density was significantly decreased by 6.34%,soil organic matter was increased by 12.41%,and available phosphorus was increased by 70.33%,elevating soil quality by 0.56 grades in 2024.The combined treatment also enhanced silage maize performance:plant height was increased by 5.67%,dry matter yield was increased by 21.93%,and starch content was increased by 3.46%,alongside reductions in neutral detergent fiber by 5.73%and acid detergent fiber by 11.03%.The annual yields were increased by 12.52%in 2023 and 25.28%in 2024,with a net profit increase of 2279.4 Yuan·ha-1 and improvement in the cost-benefit ratio by 13.04%in 2024.These findings demonstrate that the'six-aspect integrated'pattern significantly suppresses soil salinity,improves soil quality,and enhances crop productivity,making it a promising approach for practical use on a large scale in agricultural production.关键词
盐碱地/"六位一体"模式/水盐动态/耕地质量等级/青贮玉米/产能Key words
saline-alkali land/'six-aspect integrated'pattern/water-salt dynamics/cultivated land quality grades/silage maize/production capacity引用本文复制引用
李磊,马勇宽,蒋鹏,朱志明,纪立东,李龙,许兴.."六位一体"模式对宁夏盐碱地土壤水盐动态、质量等级及青贮玉米产能的影响[J].草业学报,2026,35(3):68-82,15.基金项目
国家重点研发计划项目"黄河上游河套平原节水控盐产能提升技术模式与应用(2021YFD19006)"专题"宁夏平罗插花盐渍地改稻种旱节水控盐产能提升模式示范(2021YFD1900605-02)"和宁夏回族自治区农业高质量发展和生态保护科技创新示范项目(NGSB-2021-11-07)资助. （2021YFD19006）
