Leaf Problems ( yellowing burn ? )

Whats good guys.
Im growing a critical kush and she is becoming a troublesome lady..

• she is week 2 day 4 into flower
• 1ml of grow and 3ml of bloom per litre of water ( plant magic organic nutrients ) fed every 2 weeks. ( water 2 times a week )
• plant magic organic soil
• temps between 23-26c always stable temps.

I cant seem to find any info on what im doing wrong and why this is happening to the leaves?
Im trying to go for a fully organic grow but since this being my first time using organics it seems im doing something wrong !
any help would be great :)
 

Attachments

Last edited:
Not too much to worry about, just use flowering nutes when a plant starts flowering.
Ive got quite a few grows under my belt but ive never had my leaves going like this? this is my first time growing organic. what do you think the problem is that is making the leave go this colour ?
 

Cl@rksville

Well-Known Member
Ive got quite a few grows under my belt but ive never had my leaves going like this? this is my first time growing organic. what do you think the problem is that is making the leave go this colour ?
Could be your bloom fertiliser? A common problem in very rich organic soils during first 2 weeks of flower as the N having been easily leached during this transition raises the soil Ph, as the K is unaffected by this higher Ph the plant takes too much on board but can then lock out the Manganese... You then start building up the N again which you clearly have enough of, and of course they will take at this first few weeks like a fat kid takes a big mac, bloody greedy plants eh! I suggest you lower both grow and this bloom by a third and just keep going with it as you were but maybe lower the Ph by a point? If it carries on getting worse then cut the grow out and add a micro nutrient...
 
Could be your bloom fertiliser? A common problem in very rich organic soils during first 2 weeks of flower as the N having been easily leached during this transition raises the soil Ph, as the K is unaffected by this higher Ph the plant takes too much on board but can then lock out the Manganese... You then start building up the N again which you clearly have enough of, and of course they will take at this first few weeks like a fat kid takes a big mac, bloody greedy plants eh! I suggest you lower both grow and this bloom by a third and just keep going with it as you were but maybe lower the Ph by a point? If it carries on getting worse then cut the grow out and add a micro nutrient...
This makes alot of sence man - thanks for the reply.
the soil is fertilised, i didn't use any nurtrients thru out veg and she was growin perfectly with no problems.
its only since ive gone into flower these problems have started.
im going to take your advise and lower my bloom down to 1.5 per litre. i may cut the veg nutrient out now and see what happens.
it seems to be nutrient burn but ive never seen a burn quite like this as it only decolouring the leaves and not "burning" them..
my ph seems very stable but ill drop that down to 6.6 and see what happens.
thanks for your help man !
 

Cl@rksville

Well-Known Member
You have a bit on the tips but don't we all. Sulphur can build up with a sudden input of nutes which can also cause those lighter tippets in some crops I learned about during Uni so why not MJ? However they are looking pretty fine mate so don't flap just yet and once they done get on a proper sick DWC bubbler!
 
You have a bit on the tips but don't we all. Sulphur can build up with a sudden input of nutes which can also cause those lighter tippets in some crops I learned about during Uni so why not MJ? However they are looking pretty fine mate so don't flap just yet and once they done get on a proper sick DWC bubbler!
man shes becoming a headache, ive grown her with chemical nuets qnd she was fine.
Shes also a big girl, shes in a 40 litre root pouch pot and standing at 5ft 9. shes filled up a 1.2m x 1.2m tent.
I am a user of dwc bro just wanted to try something diffrent with less work ( organic ) but its became more work for me using organics lol !
 

Cl@rksville

Well-Known Member
man shes becoming a headache, ive grown her with chemical nuets qnd she was fine.
Shes also a big girl, shes in a 40 litre root pouch pot and standing at 5ft 9. shes filled up a 1.2m x 1.2m tent.
I am a user of dwc bro just wanted to try something diffrent with less work ( organic ) but its became more work for me using organics lol !
Facking hell thats huge mate youre gonna get a bit of shite low down I expect.
 
You have a bit on the tips but don't we all. Sulphur can build up with a sudden input of nutes which can also cause those lighter tippets in some crops I learned about during Uni so why not MJ? However they are looking pretty fine mate so don't flap just yet and once they done get on a proper sick DWC bubbler!
Oh and yeah that soils harder work imo?
Here she is. Oh man she's become more work for me then how I normally go about with dwc. But hey ho she was only a test run but im going to stick with my old ways rather then changing over to this. She looks quite healthy tho ?
 

Attachments

green_machine_two9er

Well-Known Member
HAve you considered a TRUE ORGANIC run? any bottled "organic nutrient" although may be composed from organic sources is not true organics. Living soil grows Are much easier is daily maintance and headache. throw away your ph pen and water only throughout whole cycle.

I do like seeing poeple wanting to swtich but it is all to often that a chemicle grower trades in there line for another organic line. nothing is different. organic nutrients should be used in a soiless medium. Bottles are still chemicly altered to make nutrients avail instantly to plants.

In true organics we build a perfect soil enviroment, use Fresh compost and Earth worm castings to bring in beneficial bacterias and fungal growth. (micro herd). this micro herd breaks down RAW ammendments( KELP, aflafa, bone meals, minerals et.) and through the micro herds excudes( shit basically) the nutreints become avail to the plant. But this symbiotic relationship goes way further than that. In fact microbes the whole system can maintan its own ph, and controls the supply of nutrients to the plant AS THE PLANT NEEDS IT, though superhighways of fungal growth. The results SPeak for themselves.

Why its saves time and more importantly $$$$ to grow this way.
Water only recipes, with a montly Microbe tea to keep the beneficals happy in soil
with non hard water sources no phing is ever required, no tds mesaurements needed.
water retention of living soils is increased so water less often. In 5 gallon pots i water every 4-5 days. 2 qrts at a time.

Built in pest management. with additions like crab meal, neam meal and a healthy compost/topdress bugs will be a distant worry of the past. I have not even seen one fungus gnat since switching.

increased disease/mold resistance. the genetics of living soil grows really get a chance to shine. cannabis has lots of genetically built in pest/diseaseprevention measure built in, but it is usually more to do with symbiosis between soil and plant that builds these measure up.

$$$$
recycle and reuse your soil forever and ever amen!
imagine never having to step foot in the hydro store EVER again.
OR better yet, NO TILL. which litterally means taking large pots, harvesting. than plant next clone directly next to root ball of just harvested plant. top dress with fresh compost and good to go.

Sustainability. the ammount of growers nowadays is growing. think about the enviromental impact the use of chemicles and monstanto style pestacides could have. this stuff is poisen for our earth and I get off on not adding to the problem. hell and now that i grow this way i compost everything i can. Have a earth worm factory right in my kitchen for scraps. which turns into amazing compost, which grows danks ass herbs. cant beat it. rant over! sorry to hijack. I just noticed OP that you really wanted to try FULLY ORGANIC, just though id give you a glimpse of the next step to getting there. And i promise once you do you will never look back.
 
Top