Effects of deep plowing and “cutting and banking” practice on the concentration of water-soluble aluminum and allophane content in Andosols: Implication for recent incidence of potato common scab in Abashiri area

Efficacy of single application ammonium sulfate in suppressing potato common scab

“…The ability of allophane to adsorb Al ions could be responsible for the low concentration of water-soluble Al in the allophanic Andosols (Wad a 1987). Deep plowing of the field increases the allophane concentration in Andosols (Mizuno et al 1998a). …”