Awesome. Thanks so much for all that. And yes! I will definitely take copies of those spreadsheet’s! I need to start getting this stuff down. Thanks again, I appreciate it.
2 Likes
Right now I only have the cal-nit, and the cal-mag plus in my cart, but I’ll probably grab the strawberry fert. I think it’s NPK 8-12-32 so, a 1-1-4 ratio for finishing.
2 Likes
I still get confused when I go on the Greenway site. It’s like I guess I need the ammonium sulfate to combine with the cal-nit right? And I guess I need all those micros like the manganese sulfate, and the copper sulfate, but when reading it says use copper sulfate as a root killer! That’s the last thing I want it to do lol! 
I don’t know. I should of paid better attention in chemistry class ,but that was so long ago, I would’ve forgotten it all by now anyway lol! Guess that’s why I’m up at 1 in the morning every night reading till I’m bug eyed. 
1 Like
Also what is the best form of N available to plants? I thought ammoniacal was the form most readily available? Now I’m reading an old article that says when it comes to mixing salts, nitrate N is more soluble. So, is it that ammoniacal is more readily available, but nitrates dissolve better when mixing? Does that make nitrate N better, or is it basically the same because ammoniacal is more available, but doesn’t dissolve as easily, and nitrate disolves easily, but isn’t as readily available? 
Maybe now I’m just overtired, and nitpicking, and should just go back to bed? 
2 Likes
Also, have you ever tried NPK industries Raw two part grow and bloom? They seem to be decent ratios for veg, and mid - late flower. Would need to use a low N cal mag supplement being that the one they carry containers a whopping 9% N! Maybe the one Greenway carries would do, as it’s only 2% N.
1 Like
15.5 n / 19 cal ( greenway biotech calnit )
2 n / 3.2 cal ( greenway biotech calmag )
19 decided by 3.2 = 6 ish
6 X 2 = 12
So calmag is like 12n / 19cal so slightly less n compared to calnit but because it is 2n / 3.2 cal it’s quite weak making it way more expensive ( 6x ) altho it does have mag and iron extra but these are small percentages too , so not sure if worth it as it’s near double the price per gram also
9n / 15 cal ( raw calmag ) slightly even less n to cal so better again
I wonder what’s the lowest we can find apart from plant prod spike which I think is only available in Canada at moment
3 Likes
Nice plants . Good read indeed @GramTorino
2 Likes
N. Most everything is Nitrate, with small percentage of ammonical, like 5 percent.
No experience with mixing micros, or the NPK raw products.
2 Likes
@GramTorino , that 5% , that’s to help stabilise the ph ?
And the nute companies don’t mind the extra n as they like us to see dark green plants as they think it makes us think our plants are healthy and their product is great
3 Likes
Not sure why. Possibly less of an issue for soil grows.
That Spike calmag is nice because it’s zero N. TPS has a similar liquid.
Being able to decipher and decode the labels is a talent unto itself! Lol
My goal is to establish formulas and feed schedules on paper.
Then grow with those schedules and adjust as needed.
That way I end up with documented known good formulas to use going forward.
5 Likes
Thank you for checking it out @Ak49
3 Likes
So, should I drop the cal-mag plus, and just stick with the cal-nit? I guess the cal-nit has enough Ca in it already I can skip the cal-mag all together? I can use epsom to bring up Mg levels?
3 Likes
@SeymourGreen You would have to work out the mixing tho so it’s 2:1
1 Like
I use epsom for mag. (Sulfer comes with it too )
Able to adjust based on Ca ppm from calnit.
Better to have mag separate if you want that flexibility.
If needed for my coco, I use some calimagic to hit my target ppm. Much smaller N increase than upping calnit.
2 Likes
Absolutely thank you for sharing!!!
2 Likes
Found this while surfing.
“The Nitrate to Ammonium ratio is important. Calcium Nitrate is important as a Nitrate source especially for hydroponics. It is highly soluble and rapidly taken up by the root system. While a small proportion of Ammonium in the root zone helps boost growth in alkaline conditions and in low light and temperature, Ammonium is also a cation (NH4+) and significantly aggravates Calcium uptake and should be reduced to zero in hot weather and rapid growth conditions.”
4 Likes
I think NH4 is the devil in coco. Especially for those of us with type 1 water that are perpetually fighting off calcium deficiency…
Edit: Also – observationally, it seems like a little NH4 can easily lead to N toxicity. I wouldn’t be surprised if it builds up in coco. My supposition is that people who have N problems with Jacks/Peters formulas in flower actually have NH4 buildup, and reducing NH4 in the feed via calprime is probably beneficial for that reason.
4 Likes
Interesting… veeeeeerrrrry interesting…
Kudos.
3 Likes
2:1 cal-nit to mag?
Or you mean Ca to Mg?
1 Like