Cal. Food & Agric. Code § 14611
(a)
(b) In addition to the assessment provided in subdivision (a), the secretary may impose an assessment in an amount not to exceed one mill ($0.001) per dollar of sales for all sales of fertilizing materials, to provide funding for research and education regarding the use and handling of fertilizing material, including, but not limited to, support for the University of California Cooperative Extension, the California resource conservation districts, other California institutions of postsecondary education, or other qualified entities to develop programs in the following areas: