2 Strains and 2 different problems!!!

[Bond]

I've got 15 plants about 2 ft tall and of 2 different strains (White Widow - i Think - & Jack Frost). They are all fine apart from 2 plants, a widow and a frosty.

All the plants are grown totally organic in a 1/3 potting compost, 1/3 perlite, 1/3 well rotted manure mix. They are 3 weeks into flower under a 600w HPS in a cooltube and they get a water with regular tap water (Hard water area) when they have dried out, so the soil doesn't get saturated.

I did have a bit of a problem with the frosty growing a bit quick and getting a burned on the tips of the leaves, but the light has been raised now and all the rest of the plants are fine.

Anyways, here is my problem...

The leaf on the left is a widow and the one on the right is a frosty.


I think the widow (Left) has a Nitrogen def, but would appreciate anyones views and i'm not sure about the frosty. I've had a look in the sick plant guide but there doesn't seem to be any symptoms that match what my frosty is doing. It seems to be yellowing from the inside of the leaf outwards, but without touching the stem bit right in the middle.

Any ideas?

 

[dre86]

right leaf = bleaching? Not 100% sure on this though..

on the left = just a wild guess..Phosphorus defficiency? Do you give them flowering food?

 

[Guest]

looks like they need some bloom fert potassium

 

[Bond]

I haven't given any of them any feeding at all, the mix with the manure seems to have been working quite well up to now. I have a number of options if you feel they could do with a feed though:

1.> I have some "House and Garden rapid grow" A & B Hydro solutions (both veg and flower types) - live and direct from the Netherlands no less!

2.> I have a wormery thats almost overflowing with worm tea.

3.> I have some of the usual garden type stuff like miracle grow and tomorite.

Would any of these help?

and also, should i feed all of the plants or just the ones showing signs of hunger?

 

[dre86]

Hey I think they are ready for some P-K 13-14...If you have that laying around I would give them that from now on..

 

[Bond]

Here's a pic of the nutes i said i'd got:



The Hydro B (Flowering) i have says this on the back

"
Nitrogen total(N) 2%
Poshphoric acid anhydride (P205) 4%
Potassium oxide (K20) 10%
"
and it says 1 Litre to 200 Litres of water....shall i mix up a batch to this strength and give it to them?

 

[bartender187]

^^
Try half or 3/4 strngth of the flowerin nutes... Mix it up, PH adjust and see if it helps.

 

[Bond]

A & B of the flower nutes or just the B i listed?

...btw, cheers for your input everybody

 

[dre86]

That hydro B is perfect for the whole bloom! low Nitrogen, high phosphorus and kalium. Build it up gradually so you don't burn the roots.. Good luck!

 

[Bond]

I'll give it a go, thanks a lot for the help guys/gals