摘要
为评价施用有机肥对华北平原盐碱土的改良效果,建立了包含150组数据的数据库,采用Meta分析定量评估有机肥施用方式(与无机肥配施/单施)、类型(商品有机肥/畜禽粪便/绿肥/生物炭)及施用年限(1 a或≥2 a)对不同土层(0—100 cm)不同盐渍化程度盐碱土(轻/中/重)的改良效应。结果表明,有机肥与无机肥配施能显著提升土壤化学性质及阳离子交换量,降低土壤容重和电导率、pH;各种有机肥中商品有机肥的稳定性更优;长期施用(≥2 a)对土壤容重和pH的改良效果显著优于短期(1 a)。研究证实有机肥通过“养分活化-结构改良-酶促循环”协同机制实现盐碱地修复,为华北平原中低产田治理提供了理论依据。
To evaluate the improvement effect of organic fertilizer on saline-alkali soil in North China Plain,a database containing 150 sets of data was established and Meta-analysis was used to quantitatively evaluate the improvement effects of organic fertilizer application method(application combined with inorganic fertilizer or single application),type(commercial organic fertilizer,livestock manure,green fertilizer or biochar)and application years(1 a or≥2 a)on salinization degree(light,medium,heavy)of different soil layers(0 to 100 cm).The results showed that the application of organic fertilizer combined with inorganic fertilizer significantly improved soil chemical properties and cation exchange capacity,and decreased soil bulk density,electrical conductivity and pH.Among various organic fertilizers,the stability of commercial organic fertilizer was better.The improvement effect of longterm application(≥2 a)on bulk density and pH was significantly better than that of short-term application(1 a).Above results strongly confirmed that organic fertilizer could restore saline-alkali land through the synergistic mechanism of“nutrient activation,structure improvement and enzyme cycle”,which provided theoretical basis for the treatment of middle and low yield fields in the North China Plain.
作者
史玉棣
宫玉玉
葛恩琪
张瑞芳
李旭光
吉艳芝
尹宝重
SHI Yudi;GONG Yuyu;GE Enqi;ZHANG Ruifang;LI Xuguang;JI Yanzhi;YIN Baozhong(College of Plant Protection,Hebei Agricultural University,Heibei Baoding 071001,China;College of Land and Resources,Hebei Agricultural University,Hebei Baoding 071001,China;Cultivated Land Quality Monitoring and Protection Center of Hebei Province,Shijiazhuang 050000,China;College of Resources and Environmental Sciences,Hebei Agricultural University,Hebei Baoding 071001,China)
出处
《中国农业科技导报(中英文)》
北大核心
2026年第4期171-179,共9页
Journal of Agricultural Science and Technology
基金
国家重点研发计划项目(2023YFD2303000)。
关键词
有机肥
盐碱土
META分析
华北平原
土壤改良
organic fertilizer
saline-alkali soil
Meta-analysis
North China Plain
soil improvement
