(a) Effect of chapter.--The provisions of this chapter are of Statewide concern and occupy the whole field of regulation regarding the registration, packaging, labeling, sale, transportation, distribution, use and application of fertilizers to the exclusion of all local regulations.

(b) Enforcement.--No ordinance or regulation of a local agency, political subdivision or home rule municipality may prohibit or attempt to regulate a matter relating to the registration, packaging, labeling, sale, transportation, distribution, use or application of fertilizers, if the ordinance or regulation conflicts with this chapter.

(c) Stricter requirements.--Nothing in this chapter shall be construed to prevent a political subdivision or home rule municipality from adopting and enforcing an ordinance or a regulation that is consistent with and no more stringent than the requirements of this chapter and the regulations promulgated under this chapter. No penalty shall be assessed under the local ordinance or regulation under this subsection for a violation for which a penalty has been assessed under this chapter.