Hey all,

I'm having a leaf curl problem on 8 Mazar clones 23 days into 12/12, theyre 2 foot tall and have just finished their stretch.

I'm putting the problem down to excessive Nitrogen and have been studying my GHE Flora nutes and their NPK ratios.


Now the ratio of use between each of the 3 parts I have worked out to be -

Vegetative growth - Micro 2 parts : Grow 3 parts : Bloom 1 part (2:3:1)
Flower growth - Micro 2 parts : Grow 1 part : Bloom 3 parts (2:1:3)

This is going by the nute guide I recieved with the nutrients and although toned down rtios remain the same. It's just the ec thatchanges with the amount you put in.

My problem lies with trying to lessen the amount of Nitrogen being applied to the solution as it's not as simple as lowering the amount of grow part.


I looked on the bottles and the NPK values are as follows -

Micro - 4-0-2
Grow - 2-1-7
Bloom - 0-5-4

So in their respective ratios they total NPK values as follows using the useage ratios aove -

Vegetative growth - useage ratio of 2:3:1 gives NPK value of 14-8-29 (2x 4-0-2)(3x 2-1-7)(1x 0-5-4) This seems to be quite low in P which could be part of the problems I've been having in my other post where Owderb advised me that I may be having P deficiencies.

Flower growth - useage ratio of 2:1:3 gives NPK value of 10-16-23 (2x 4-0-2)(1x 2-1-7)(3x 0-5-4) This seems too high in N which would account for my (what I believe to be) excessive Nitrogen which is causing my leaf curl.


Now am I right in my calculations here or am I way off base and is there anyone out there that could shed some light on the situation or that has experience with GHE Flora nutes and can help me lower my Nitrogen w/o screwing with the needed ratios?

As you can see the micro has more N than the grow and is always used at 2 parts to the other 2 wether in flower or bloom but I don't wish to starve my mother from all the secondary nutrients it contains. The same goes for taking out or lowering the grow from the flowering stage as it seems to have a lot more K in it than both Micro and Bloom.

All help greatly recieved as always.

Rubixx.

Hey guys,

I'm wanting to get this cleared up as soon as possible cuz it's getting worse day by day and although I understand you may not all be using or have used GHE flora could somebody atleast tell me if I have calculated NPK values correctly or such and give possible implications of removing / lowering 1 or more of the 3 parts?

i wish i could help more rubixx
but i've only just starting using these feeds myself
i dont know if your reading too much into it
but i'm just following the schedule on the side of the tubs
PER ML/Litre

maybe someonelse ?

No worries TB, thanks for replying all the same.

Right I've decided to try a useage ratio in flower of 1:1:3 which ends up with an NPK ratio of 6:16:21 (1x 4:0:2)(1x 2:1:7)(3x 0:5:4) as opposed to the 10:16:23 and am feeding 18ml micro , 18 ml grow and 54 ml bloom per 30 ltres of water giving an ec of 1.0 (which is lower than I wanted of 1.2 but I will up it in the next top up to around 20,20,60 and take another look.

Seems some of the top most fan leaves are starting to possibly show a sign of mg def so I may get some epsom salts and spray it on soon, we'll see.

Hi I use GH 3 part. I think you've been giving them too much Micro and Grow earlier during veg if the ratio you used was:

Micro 2 parts : Grow 3 parts : Bloom 1 part.

I follow the instructions on the bottle and use 1:1:1 during veg and up them equally to raise e.c as they get bigger.

Also, on the bottle, they recommend that during the transition stage from veg to flower you should go with the ratio: Micro:1.5, Grow: 1.0, Bloom:0.5

I usually don't bother following this transition portion on the instructions and just switch to the flower feed ratio that you have of 2:1:3 when the flowers start to form. When they can start to take up more food I increase the amount of Micro and bloom only and keep the grow use low.

Theres lots of different guides for using GH. Lucas formula eliminates the grow part and just uses the micro and bloom and 8:16ml per gallon and I heard it very good if you are using RO water.

Mag def usually appears on the bottom leaves first and typically (I've read) that you never really need to add magnesium salts when doing hydro.

A picture would help.

check out the lucas formula, you don't even need the gro just micro and bloom and its just nicer imho.

peace.

Thanks for the replies guys,

I looked into it a lil while back but not really with any intention of using it, maybe I should go have another look and try it on the next lot as i'm in the 5th week now (37 days today).

Clones are having 2 weeks veg time after prop before being switched to 12/12 sog style which is why I was using the transitional ratio for the veg part, will take another look at that too and see if I shouldn't make that 1:1:1.

Rubixx

i use the 3part gh mate and have never had any problems when following the instructions on the bottle, a mate of mine has used these for years and has an old sheet that says to eliminate the grow for the last 7-10 days and feed them just bloom and micro so for instance your putting 50ml gro 100 ml micro and 150 bloom into 100l u just put 100ml micro and 150 ml bloom in 4 the last 7-10 daysand then flush . this stops any further extension growth. The thing is with these nutrients mate is that the boys who developed them got them pretty bang on and as you probably know they are constantly being updated and improved, so following the instructions will get you results, not saying your not following the instructions but possibly something else apart from the nutes could be causin it. Funnily enough i have previously used the hard water micro and this has been buffering my ph down way too fast and has given me a slight leaf curl but due to the recent amount of rain the water in my local area is very soft at the moment so i have had to switch to the soft water micro so im hoping this works. Ph fluctuation (up and down rapidly) can cause leaf twist (im pretty sure of that one anyway mate).

Ive used GH nutes with the Lucas formula on a wide variety of plants and have always had very vibrant plants.
RO water...and a starting PH of about 5.2 are sure keys to its success.

Veg formula is 0-5-10, 0 grow, 5ml of Micro per res gallon and 10ml of Bloom per res gallon.
Bloom formula is 0-8-16, 0 grow, 8ml of Micro per res gallon and 16ml of Bloom per res gallon.

With GH nutes, the Micro needs to always go in first. If not it seems that several of the micro nutes get locked out.

Thanks for your replies guys,

I'll take that into consideration.

I do put micro in first followed by grow and bloom as I had also heard the same thing about them not dispersing properly or something.

I got some more clones going in the flower room in around 6 days.