Field trial investigates how coal gasification slag and vermicompost improve soil and plant health under saline-alkali stress, indicating a sustainable agricultural strategy.
Key Points
This research aims to evaluate the combined effects of coal gasification slag and vermicompost on soil quality and plant growth under saline-alkali conditions.
Conducted a field trial with five different treatments of soil amendments
Measured soil electrical conductivity, pH, and nutrient availability
Assessed plant growth indicators including biomass, leaf area, and height
Analyzed soil microbial diversity and richness index
Used fuzzy comprehensive evaluation to determine optimal treatment.
T4 treatment reduced soil electrical conductivity by 12% and pH by 5.17% compared to control
Enhanced soil organic matter and nutrient availability for nitrogen, phosphorus, and potassium
Showed superior growth in Leymus chinensis with increased biomass, leaf area, and height
Increased soil microbial richness by 21.5% and Acidobacteria abundance by 16.9% in T4 treatment
T4 was identified as the most economically viable remediation strategy for saline-alkali soils.