In valuing land classified as agricultural, horticultural, or forest land under Chapters 61 and 61A, the Board of Assessors must consider only those indicia of value that such land has for agricultural, horticultural, or forest uses. The ranges of value are to be used in conjunction with the Assessors’ appraisal knowledge, judjudgmntand experience as to agricultural, horticultural, and forest land values. The FVAC’s adopted methodology should be considered in all local analyses. All values adopted outside the range recommended by the FVAC must be supported by a comprehensive study of local factors influencing value, together with a detailed description of the selected valuation models and resulting use value estimates. Any sales of farmland, income data, or other appraisal information being considered by assessors should be limited to data specific to the crop or product being grown or produced.