Projections of global population growth underscore the urgent need to restore degraded saline-sodic soils to meet rising demands for food,feed,and fiber.This study evaluated the individual and com-bined effects of gyp...Projections of global population growth underscore the urgent need to restore degraded saline-sodic soils to meet rising demands for food,feed,and fiber.This study evaluated the individual and com-bined effects of gypsum(G),elemental sulfur(S),vermicompost(VC),biochar(B),and microbial inoculation on soil remediation.A comprehensive soil degradation index(CSDI)was developed with total(CSDI-T)and minimum datasets(CSDI-M)using 13 soil properties.All treatments significantly improved soil health(p<0.05),with G+VC and S+VC combinations reducing CSDI-T by 84-85%and 65-71%and CSDI-M by 84-87%and 66-70%,respectively.Soil remediation rates correlated directly with crop yield,with CSDI models explaining 29-87%of the variance in wheat yield.These findings highlight G/S+VC treatments as cost-effective,environmentally sustainable solutions for soil resto-ration and productivity enhancement,with CSDI models offering robust tools for evaluating amendment strategies.展开更多
基金supported by the Center for International Scientific Studies&Collaboration(CISSC),and Ministry of Science,Research,and Technology.
文摘Projections of global population growth underscore the urgent need to restore degraded saline-sodic soils to meet rising demands for food,feed,and fiber.This study evaluated the individual and com-bined effects of gypsum(G),elemental sulfur(S),vermicompost(VC),biochar(B),and microbial inoculation on soil remediation.A comprehensive soil degradation index(CSDI)was developed with total(CSDI-T)and minimum datasets(CSDI-M)using 13 soil properties.All treatments significantly improved soil health(p<0.05),with G+VC and S+VC combinations reducing CSDI-T by 84-85%and 65-71%and CSDI-M by 84-87%and 66-70%,respectively.Soil remediation rates correlated directly with crop yield,with CSDI models explaining 29-87%of the variance in wheat yield.These findings highlight G/S+VC treatments as cost-effective,environmentally sustainable solutions for soil resto-ration and productivity enhancement,with CSDI models offering robust tools for evaluating amendment strategies.
