Osa Nutrient Additive Out Of Rhode Island! Is 5 Gallons Worth $4700?

[Snake Oil]

Ive been curious if adding potassium silicate along with osa has any positive or negative effects also. As long as it doesnt effect the bioavailability of the osa it makes sence to me that it would be a good thing IF your using Osa in a resivoure for a week like I do and since Osa is only good for 3 days in the reservoir and potassium silicate supposedly has to be broken down by microbes to become available so soon as the Osa is becoming unavailable the potassium silicate is becoming bioavailable so that way your plants are always getting silica.

 

[Billyboat]

Ive been curious if adding potassium silicate along with osa has any positive or negative effects also. As long as it doesnt effect the bioavailability of the osa it makes sence to me that it would be a good thing IF your using Osa in a resivoure for a week like I do and since Osa is only good for 3 days in the reservoir and potassium silicate supposedly has to be broken down by microbes to become available so soon as the Osa is becoming unavailable the potassium silicate is becoming bioavailable so that way your plants are always getting silica.

I haven't seen any adverse affects of using Agsil 16 along with OSA, Fasilator, or Power Si. Of course not used at the exact same time or mixed in the same tank.

 

[Snake Oil]

Does monosilicic acid have any antagonist that make it unavailable or make it break down quicker? Fulvic acid and silica have a synergy and fulvic acid aids in the uptake of silica as well as other nutrients. For that reason its always made sence to add fulvic acid to the reservoir first even before monosilicic acid, does that make sence to anyone else?

 

[kbellfoy]

Does monosilicic acid have any antagonist that make it unavailable or make it break down quicker? Fulvic acid and silica have a synergy and fulvic acid aids in the uptake of silica as well as other nutrients. For that reason its always made sence to add fulvic acid to the reservoir first even before monosilicic acid, does that make sence to anyone else?

Got my Osa 28 on the way. I use fulvic and humic acids so I will be trying them together. Unless anyone chimes in with a reason not too.

 

[motherlode]

Got my Osa 28 on the way. I use fulvic and humic acids so I will be trying them together. Unless anyone chimes in with a reason not too.

no its fine - snake oils point was more that OSA28 label says to add first to clean water and that seemed contradictory

 

[DismalDude]

Thank you @MakinGoo ! Got free shipping on my sample with your code.Curious to try this!

 

[osa28]

no its fine - snake oils point was more that OSA28 label says to add first to clean water and that seemed contradictory

Long as the water is below about 1.0 EC shouldn't have too much issue with stability and activation. "Clean" water just means not loaded up with NPK especially. Shouldn't be any issue with fulvic or humics in first.

 

[outwest]

Below is a price comparison per gallon based on MSRP and published applications rates. I could only find Vitalize in a 500 ml bottle. Fasilitor is over 50% more expensive per gallon then both Vitalize and OSA28. Vitalize is slightly more expensive than OSA28 ($90 vs $100 for 250ml), but Vitalize has a slightly lower application rate (.5 ml/gallon vs .6ml gallon for OSA28). In addition, Mills suggests dropping the rate of Vitalize to .25 ml/gallon after 5 weeks of flower, at which point it is by far the cheapest per gallon. Perhaps OSA28 and Fasilitor can also be dropped after 5 weeks of flower, but this is not stated in their published application rates.

Ironically, I have no plans to use any of these products, but I thought this information was relevant to this thread.

outwest

OSA28
8 oz bottle - 250 ml

.6 ml/gallon application rate

417 gallons per bottle

$90 bottle

.21 /gallon

Fasilitor
8 oz bottle - 250ml

.6 ml/gallon application rate

417 gallons

$144 bottle

.34 /gallon

Mills Vitalize
16 oz bottle - 500 ml

.5 ml/gallon application rate
(first 5 weeks of flower)

.25 ml/gallon (after 5 weeks of flower)

1000-2000 gallons

$200 500ml bottle

.10-.20 /gallon (.25-.5 ml/gallon application rate)

 

[rascali]

I gave up on fasilitor because of it's persistent and toxic acidification of nutrient and soil. Is anyone checking their nute's ph after a day with the Osa?

 

[osa28]

Thank you for that breakdown @outwest !! We are actually modifying down to 0.5ml per gallon also after further testing. We also agree with Mills that the efficacy of silicic acid drops in the later weeks of bloom. The most important is earliest veg and into mid+ bloom. Spoon feeding small amounts is shown to be most effective rather than large doses infrequently.

 

[toquer]

I gave up on fasilitor because of it's persistent and toxic acidification of nutrient and soil. Is anyone checking their nute's ph after a day with the Osa?

I've never noticed this and I've been running it in soil for two years. But I use compost tea at least twice weekly which I think might be what makes me not suffer this effect.

 

[eastcoastjoe]

I saw this the other day and thought it was worth noting

 

[sixstring]

I saw this the other day and thought it was worth noting
View attachment 551383

Boy that aptus # on the bottom makes ya wonder lol.

 

[osa28]

I saw this the other day and thought it was worth noting
View attachment 551383

Hey @eastcoastjoe saw this the other day on another thread too. Thanks for posting. These were done with the same test procedure for sure but I'm curious if this is analyzed dry or AFTER AgSil16 is mixed/diluted in water according to instructions. Haven't seen an answer yet and interested to know the soluble silicon levels of the actual application rates.

The 5 day test used is specifically for a dry product, like AgSil, so it's probably the best accuracy. However, AgSil only becomes active once it's mixed in water, either a solution or in the medium. I'm hoping someone has this test! Levels of Soluble Silicon in a product need to be calculated based upon application rates, not apples to apples.

Wollastonite for example in commercial agriculture costs between $300-400 per acre to apply each year--heavy equipment, transport, storage, etc--expensive for many crops, even though it is quite cheap for the product. Other products that can be sprayed (such as OSA/28) require far less resources and material to apply, even though the bottle price is higher. There are a lot of factors to compare product to product. It's a bitch for sure!

Ultimately, grower results matter more than anything. Anyone can tell a great story. We are only concerned with growers having measurable and consistent results that match the value of investment. If we don't do that, we failed.

 

[Quantrill]

Did you notice the AgSil 25 numbers in that chart? It is a liquid potassium silicate, similar to Protekt (2.5 weight ratio SiO2:K2O) , only more concentrated.

Also be aware that the dry AgSil 16h is 14.8% water, even in the dry form.

Have you had your OSA28 product tested after dilution to working strength? will you share the results?



I will gladly have another analysis of the AgSil 16h after diluted. Give me a target Si concentration and after the holiday I will get it tested. It might be best to shoot for a concentration that the OSA28 product can be diluted to as well and then we could compare the two diluted products for soluble silicon(5 day AAFPCO method), and also total silicon(hydrofluoric acid method).

I will post the link to the white paper that describes the 5 day AAFPCO method again for you.
Sebastian et al.: Journal of AOA C International Vol. 96, No. 2, 2013


So they take 0.2 grams of the fertilizer material, mix it with 100 mL of sodium carbonate solution and 100 mL of ammonium nitrate solution, shake it for an hour then let that sit for 5 days.

After 5 days they take 2 mL of this mixture and dilute it in water with a fnal volume of 200mL

This is what they add the reagents to and analyze for reactive silicon(silicic acid).



And the thread here at the farm that I started:
https://www.thcfarmer.com/community...tilizer-sources-aafpco-approved-method.76318/

 

[osa28]

Did you notice the AgSil 25 numbers in that chart? It is a liquid potassium silicate, similar to Protekt (2.5 weight ratio SiO2:K2O) , only more concentrated.

Also be aware that the dry AgSil 16h is 14.8% water, even in the dry form.

Have you had your OSA28 product tested after dilution to working strength? will you share the results?

I will gladly have another analysis of the AgSil 16h after diluted. Give me a target Si concentration and after the holiday I will get it tested. It might be best to shoot for a concentration that the OSA28 product can be diluted to as well and then we could compare the two diluted products for soluble silicon(5 day AAFPCO method), and also total silicon(hydrofluoric acid method).

I will post the link to the white paper that describes the 5 day AAFPCO method again for you.
Sebastian et al.: Journal of AOA C International Vol. 96, No. 2, 2013

So they take 0.2 grams of the fertilizer material, mix it with 100 mL of sodium carbonate solution and 100 mL of ammonium nitrate solution, shake it for an hour then let that sit for 5 days.

After 5 days they take 2 mL of this mixture and dilute it in water with a fnal volume of 200mL

This is what they add the reagents to and analyze for reactive silicon(silicic acid).

And the thread here at the farm that I started:
https://www.thcfarmer.com/community...tilizer-sources-aafpco-approved-method.76318/

Yeah I'm not as concerned about after reservoir mixing since the PPM is so low and I'm not sure that the 5day test would even give an accurate reading. My question was about AGSil16 being mixed in water to make a " liquid potassium silicate" solution...is this what was tested or was it the straight dry powder?

Also usage rates obviously matter. Something I haven't done yet is compare the numbers you have and seeing what a resulting PPM of the final solution would be. There's just so much about this silicon chemistry that is still unknown or questionable.

We haven't done a post-dilution test yet since no one seems to be able to perform it with any degree of accuracy. I'm looking for a university or lab that can actually look at specific molecule size in the finished solution, both after mixing and after certain periods of time.

Appreciate guys like you digging deeper into this stuff. We all need it!

 

[Kygiacomo]

i see many people complaining about the cost and is it worth it. to me it is worth it bc it can mean the difference of harvesting 1-2 oz or harvesting 10-15 oz. im a outdoor guerilla grower and im a big believer in silica which is why i load my soil full of it with DE,basalt rock dust,greensand and azomite and give ArmourSI every time i water. i make back all my money off 1 plant from my supplies,seeds and soils. if i was a indoor grower and just for personal use i may look at this a little bit different.

 

[We Solidarity]

Still haven't seen any pictures or established results...cmon osa users wheres the cream fillng?! You got a Lamborghini yet?!

 

[Kygiacomo]

i'll have some but it will be a while bc i have to wait for the guerilla season to start lol im hoping we see some before then though

 

[Dabominable]

There is another thread about Osa28..I believe the dilution rate is extremely low, because its amazingly concentrated. I Believe it comes out to cheaper then armor si. IIRC the rate was 1ml per gallon. So if you think of it like that, a little 150ml bottle, would make 150 gallons. You need to do the breakdown cost before you write something off. Just like bloombastic. costly, but at 1-4ml a gallon it goes a ridiculously long way. I know for sure i plan on trying the Osa28 once i'm out of my gallon of ArmorSi. Also, i believe there are charts and testimonials that back this product up 100%. There is not a more readily available silica source then this OSA28, from what i've gathered, but i still plan on trying it sometime soon.