Acid soils-1
Acid Soils of the Tropics
Acid Soils in Hawaii Problems and Management
土壤灌溉水調酸方案
堿性土壤改良資料匯總
堿性土壤改良方案
Solutions to Soil Problems_ II. High pH (Alkaline Soil
Solutions to Soil Problems High pH
Soil acidification slides
Oxidation Rates of Commercial Elemental Sulfur Products Applied to an Alkaline Silt Loam from Arkansas