## 5 Conclusions  
These results indicate that _C. sativa_ has different fertility requirements based on the life stage and the end goal of production. For example, if a grower is producing mother stock plants for vegetatively propagated cuttings, plants will remain vegetative throughout their lifecycle. Thus, a concentration of 11.25 mg\(\cdot\)L\({}^{-1}\) P or greater may be adequate for this operation. If _C. sativa_ plants are to be grown for the florescence and/or cannabinoids or terpen either for the fresh flower market or a distillate market, a P concentration above 11.25 mg\(\cdot\)L\({}^{-1}\) is preferred. While a P concentration of 22.5 mg\(\cdot\)L\({}^{-1}\) resulted in the greatest bud fresh weight when compared to the lowest two concentrations, it did not result in any greater increase in the active or acid cannabinoid pools. Additionally, higher P rates above 22.5 mg\(\cdot\)L\({}^{-1}\) did result in greater lateral production and consequently more nodes to produce the economic portion (floral material). Thus, a follow-up study should be completed to see if the increase in lateral nodes and floral material would result in a greater whole plant yield in floral material, despite the higher concentration of P resources not resulting in greater cannabinoid production in said flowers. Thus, for production in a cannabinoid or distillate market, a P fertility concentration of 11.25 mg\(\cdot\)L\({}^{-1}\) would be adequate, while for fresh market production, a P fertility concentration may be greater (22.5 mg\(\cdot\)L\({}^{-1}\)) to account for more visually appealing floral material. Additionally, these results indicate that the luxury consumption level for _C. sativa_ regarding plant growth metrics and leaf tissue accumulation was not reached, given that no leveling off or plateauing of leaf tissue P was observed. This may indicate that _C. sativa_ requires higher levels of P fertility to reach the uppermost limit of resource accumulation in the leaf tissue. Higher levels of P fertility concentrations should be explored to elucidate the uppermost levels of P resources the plant can acquire in the leaf tissue. Additional screening should be completed with other cultivars to quantify different P fertility needs more accurately for other types of _C. sativa_, given that a wide variety of plant architectures exists within _C. sativa_ (Figure 5). Furthermore, the sampling of different plant parts (petioles, stems, roots etc.) for mineral nutrient concentration overtime would help illuminate the accumulation and reallocation of mineral resources within _C. sativa_ over its life stages. The following are available online at [[http://www.mdpi.com/2076-3417/10/21/7875/s1](http://www.mdpi.com/2076-3417/10/21/7875/s1)]([http://www.mdpi.com/2076-3417/10/21/7875/s1](http://www.mdpi.com/2076-3417/10/21/7875/s1)), Figure S1: The terminal growing tip with four nodes (four blue circles) of a four-week-old vegetative C. _sativa_ 'BaOx' plant. Figure S2: This two-week-old _C. sativa_ 'BaOx' plant has been induced with long nights and is starting to develop reproductive structures. Figure S3: The eight-week-old _C. sativa_ 'BaOx' plant terminal apical florescence is displaying changes in leaflet morphology. Figure S4: Eight-week-old reproductive secondary branch from a _C. sativa_ 'BaOx' plant. Note how the internode length decreases (see black arrows) as the plant grows toward its branch terminus. Conceptualization, P.C., M.S.-M., G.B., M.D. and B.E.W. ; Data curation, P.C., P.V., G.B., D.L. and M.D. ; Formal analysis, P.C., M.S.-M., D.L. and M.D. ; Funding acquisition, P.C., M.S.-M. and B.E.W. ; Investigation, P.C., M.S.-M., P.V., G.B., D.L. and B.E.W. ; Methodology, P.C., M.S.-M., P.V., G.B. and B.E.W. ; Project administration, P.C., M.S.-M., P.V., G.B., D.L., M.D. and B.E.W. ; Resources, P.C., M.S.-M. and B.E.W. ; Software, P.C. ; Supervision, P.C., M.S.-M., P.V., G.B. and B.E.W. ; Validation, P.C., M.S.-M. and M.D. ; Visualization, P.C. ; Writing--original draft, P.C. ; Writing--review and editing, P.C., M.S.-M., P.V.