Hi all,
But it contains ammonia. Is this compound found in the 1% calculator?
Unfortunately <"
it is a bit complicated">, but because your fertiliser is 15 or 16% nitrogen (N), which means you have <"
NitroChalk">, which is probably the "
hydrated double salt - 5Ca(NO3)2•NH4NO3•10H2O" which still doesn't quite work, some I'm going to guess plus some unreacted CaCO3.
This means that you can't really use the calculator as such, you would need to convert the result you get by the difference between the nitrogen content of your fertiliser and the salt you use in the <"
Rotala Nutrient Calculator">.
Having said that the result from "calcium nitrate tetrahydrate" Ca(NO3)2.4H2O will be pretty close.
RAM
Ca = 40.1, N = 14, O = 16, H = 1
RMM
40.1 + (14*2) 28 + (16 * 6) 96 + (8) + (4 * 16)64 =
236.1 and 40.1 / 236.1 = 17% N and 17 / 15.5 = ~ 1.1 so 10g of Ca(NO3)2.4H2O has the same amount of nitrogen as ~ 11g "NitroChalk".
am not gonna lie but NH4NO3 is one of the best Nitrogen you could use for aquatic plant
I think, if you don't have any livestock, ammonium nitrate (NH4NO3) would be the best option for the reasons that
@MichaelJ mentions. It is commercial growers "nitrogen source of choice" and they are a <"
pretty good indication">.
There are inherent limitations of <"
commercial fertiliser mixes">, but there is also the disclaimer that commercial hydroponic fertilisers must fulfill the basic requirement of promoting plant growth, or they companies that make them would have gone out of business.
But, Urea isn't too far behind and I would use Urea as my source of Nitrogen when NH4NO3 isn't available. it is also very safe compare to directly adding the NH4 when used properly.
Personally I wouldn't use the "Nitrochalk" , I'd <"
use urea"> (CO(NH2)2) and <"
another calcium source">.
cheers Darrel