Quote:
Originally Posted by purpleplantman
This stuff is dangerous! It is a nanonutrient,useful in calcium metabolism through synergistic mechanisms.Ask yourself, how soluble is quartz (silicon dioxide)? When used at recommended rates it will starve plants by attaching itself to your fertilizer forming an insoluble precipitate.I have seen a large greenhouse of orchids starving,showing extensive chlorosis,green displayed in only the lead growth. Pro tek is extremely alkaline & will also kill live spaghnum if used as directed.[INDENT]I recommend using Pro tek at a rate of say 1drop/10 litres water around every 2 weeks NOT in conjunction with fertilizer. Chlorosis was cured by applying Mag pro, a great product, along with cessation of Pro tek, & normal applications of Dyna gro. My preference these days is for 2 or 3 part hydroponic fertilizers such as General.
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Sorry, but I think a lot of this is misinterpretation...
Pro-TeKt is a potassium silicate solution, and pure SiO2 is definitely water soluble once combined (at high temperature) with a sufficient amount of alkaline material beforehand. The "water glass" of use in philately is a sodium silicate solution, where the Na:Si ratio is at least 2.5:1.
If mixed with fertilizer in
concentrated solutions, precipitation will occur that results in the non-availability of some nutrients. That is simply not true in dilute, as-applied solutions. The label even tells you not to mix concentrates.
I have neither seen, nor heard of real "insect blocking" based upon its use, but it really does appear to make plants more tolerant of extreme heat - maybe that extreme temperature in either direction, but the high end is my experience.
Be careful about pH though. It is an extremely alkaline material, so will raise the pH if overused in a fertilizer solution. Back when I used Dyna-Gro "Grow" formula in RO water, I used an equal amount of Pro-TeKt to raise the pH back to acceptable levels (mixed in the final stream, not in the concentrate).