"施过骨粉料的" can be translated as "having been treated/applied with bone meal" or more naturally in context as "fertilized with bone meal" (if referring to plants or soil that has received bone meal as fertilizer).
For example:
The plants were fertilized with bone meal. （这些植物施过骨粉料。）
The soil has been treated with bone meal. （这片土壤施过骨粉料。）