Ive been mentioned a couple of times so I’ll add my 5 pennies worth, mostly from a hard water tank perspective. 😊
I DIY both macro and micro but certainly can’t see why SSF TEC couldn’t be used as a micro mix and split dosed through the week.
As mentioned, this could still require some supplemental addition of an appropriate Fe in hard water/ high Ph tanks, which are more prone to Fe ‘issues’. (Particularly in high tech where the plants are being driven harder) but this would apply equally to any pre-mix micro using EDTA so not exclusive to this product by any means. To my knowledge, most liquid pre-mix products will not use anything stronger than EDTA as a chelater and therefore running into iron deficiencies can occur.
I have been testing various Fe ‘types’ and should have some further results to share in a couple of weeks, so bear with me on that.
As mentioned by @Happi
, front loading the Solufeed 2:1:4 in higher Ph (or at EI levels) might be trickier due to Urea content so a cautious approach is wise and split dosing may therefore be preferable for that reason. Also, my instinct would tell me that, as some micros are more prone to becoming unavailable over time, particularly in higher Ph, and the 2:1:4 includes both macro and micro elements (which will go towards your total micro ppm target) this may also indicate that split dosing would be preferable to give the optimum availability of your targeted micro doses across a week. More so, the higher your Ph is.
As mentioned, I don’t dose N at all, due to already having high Nitrate in my tap and I therefore front-load just P/K and Mg (which works well for me and keeps parameters fairly stable) Micros are split dosed. If this is ur preferred option, a P/K mix is pretty easy to put together and I think most folks dose Mg separately anyway. The SSF TEC can then still be used as a micro (so it’s a half way house to going full DIY) albeit with additional Fe dosing if required.
You lucky folks with lower Ph need be less concerned about some of this and even tank to tank, plant to plant, there are differences. I have never yet seen an Fe deficiency in my low tech despite the Ph being consistently higher than the high tech so…..horses for courses.
It certainly would be great to get these products into the calculator somehow, though I understand the challenges!! They have got to be one of the cheapest ways of delivering ferts without going down the DIY route!! 😊
Due to the various testing I’m doing with individual ferts, this one is not for me right now, but would be great to get more feedback from anyone trialling them! 👍