There was a post awhile back discussing the effects of fulvic/humic acid in flower. I can't find it.
This might be of some use.
"Interestingly, HA significantly reduced the natural spatial variability of all of the cannabinoids studied. However, the increased uniformity came at the expense of the higher levels of cannabinoids found in the upper regions of the untreated plants (Figure 4). For example, following HA application THC levels at the top of the plant was reduced from 11.8 to 7.4%, and consequently concentrations throughout the plant height did not differ significantly"
Mineral nutrition is a major factor affecting plant growth and function. Increasing evidence supports the involvement of macro and micronutrients in secondar...