Nutrients and soil amendments in the amounts determined by soil tests shall be applied to the redistributed surface soil layer, so that it supports the approved postmining land use and meets the revegetation requirements of §§12.390-12.393 and 12.395 of this title (relating to Revegetation: General Requirements, to Revegetation: Use of Introduced Species, to Revegetation: Timing, to Revegetation: Mulching and Other Soil Stabilizing Practices, and to Revegetation: Standards for Success). All soil tests shall be performed by a qualified laboratory using standard methods approved by the Commission.