Epsom salts

[dw1305]

Hi all,
Spreadsheet sent.

So I will need 6 grammes of solufeed in order to build up the iron to 2.52 ppm x 200 Litre.

Yes.

@Oldguy suggested 0.25 ppm, so it would be 0.6 g of solufeed in 200l for that level of iron.

If you know the % of iron in the solufeed you can use the <"Rotala Butterfly Dosing Calculator"> which avoids the maths. Have a look at <"Calculating with DTPA Fe 8%">.

cheers Darrel

 

[Martin steele]

Hi Darryl,
I think it's finally sinking in in the past I could have worked this out in just a moment,unfortunately I suffered a stroke about 9 years ago and it's left my thought processes rather worse off.

So 0.25 ppm meanse
After the 0 tenths hundreds and thousands am I right in thinking that 0.25 is two tenths and 5 hundreds of 1 ppm.

In Wich case the trace elements hardly seem worth adding but I know it's just a trace but it seems such a very tiny amount.

 

[dw1305]

Hi all,

......am I right in thinking that 0.25 is two tenths and 5 hundreds of 1 ppm.

Yes, that's it.

In which case the trace elements hardly seem worth adding but I know it's just a trace but it seems such a very tiny amount.

That is the thing with the micro-elements, plants just need a tiny bit of them, but they need all of the <"essential elements"> to grow.

A lot of the plant nutrients are essential for plant growth, but then <"become toxic at slightly higher levels">, you can think of elements like zinc (Zn), copper (Cu) and iron (Fe).

If you wanted to add 0.5 ppm iron it wouldn't do any harm.

cheers Darrel