aaronnorth
www.ukaps.org
whats more effective? liquid or powder ferts?
a fertiliser is a fertiliser!! no difference, just cost![]()
I don't know...What source did it come from? What chemicals were used as a binding agent or preservative? What is the dessicating agent in the case of dry ferts? How are ferts produced? How long do they sit on the shelf? Is it synthesized or from a natural source? I don't know, I've been thinking a lot about these questions lately. For example, why is Miracle-gro bright blue, when poop is distinctly not? Probably a stupid question, but my plants do better on tank water than on Miracle-gro. Miracle-gro has a warning on the lable about burns? Is that good? Do your chemicals come with such warnings? Have you thought about it? If it's potentially harmful for you, couldn't also be harmful for plants? On the other hand, you can squeeze filter sponges of their muck and feed the juice to corydora fry, so obviously it is not harmful enough to kill even the smallest of organisms.
Aaronnorth, you're probably right, but these questions have recently got me thinking about what I put in my tank, or water my terrestrial plants with, for that matter.
Just food for thought.
llj
:
only things to consider is the chelator used (which most companies use as standard anyway) and whether it contains toxins (ammonium nitrate is often used in terrestial fertilisers), and that is it IMO.
miracle-grow is made up of by-products of the petroleum industry, probably why it is blue, and also the reason for burns, due to the high Nitrogen content. the fertilisers we buy are salts, so we know they are not harmful to plants, and we know the levels we are adding.
all fertilisers are produced through ion exchange (eg. KCl + NaNO3 > KNO3 + NaCl) hence why they are called salts!
hope this puts your mind more at ease
Thanks, Aaron