Anyone know what the cause of this is?

Recently moved plant, but was already yellow. Looks like its having nutritional deficiencies, but not sure where to start .

Looks exactly like a manganese defficiency, id look into it

I'm wondering how much N they have been getting?

hungshung said:

Recently moved plant, but was already yellow. Looks like its having nutritional deficiencies, but not sure where to start .

Click to expand...

I'd go with potassium def myself...flush her with some PHed water and mix up some nutes and then PH that before feeding, if you have never fed start with about 1/4 strength and work up till def is gone....you must flush with 3 times the amount of your pot..
(3gal pot =9gal flush) don't be scared just do it and let her set for 4-6 days and see how she does....

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hungshung said:

Recently moved plant, but was already yellow. Looks like its having nutritional deficiencies, but not sure where to start .

Click to expand...

Looks like a short bushy Indica like mine...except mine is only 30 days from sprout..

id say def a nitrogen prob...are you giving it enough?

I'd start with Ca/Mg

what is the soil mix that ur using. if coco its calcium and magnesium. Manganese is not as common as cal/mag. plus autoflowers love them some cal/mag. mix dolomite lime at 1/4 tsp per L and foliar. that will help with the magnesium issue. the calcium issue however is going to have to be combated at the root zone. Calcium is immobile and has to be taken thru the roots. because you have what I believe to be both, with a possible K lock out you need to flush, I would flush with epsom salts in the PH adjusted water. and dont feed anything. PH adjust your water after adding the salts.

alot of people will say to feed 1/4 strength but in my experience it works best to overcome the PH imbalance first. thats what lock out nutes in the first place. Then in the absence of fertile soil the plant will start to take from its carbolhydrate and nutrient reserves in its leaves. N will be one of the more prevelantly needed compounds. so you will start to see slight yellowing when her hunger or vigor returns. When you see this then feed at 1/4 strength as the plant has a hunger for food. The next watering feed at 1/2 strength and she will be right back on track within 1- week or 2 at the most. this is provided you fix and remain at a fixed PH.

nute burn are you sure that no nutes have been spilt on the leaves

flush start with new batch of nutes i dont worrie too much about ph but focus on the ec

no nute burn, I did not spray leaves with nutes. It's gotta be some kind of deficiency. I will buy some today, and I just repotted it- so flushing isn't necessary, right?

Everyone above is right.. it is all those things and more..

Except they forgot to bring on it is caused by PH issues.. I've seen it once I've seen it at least 3 dozen times.

Check that PH..


If I had to guess.. I like to guess..