P, K, Ca deficiency?

mrcryce

Well-Known Member
Hi RIU, I hope someone here has the experience to be able to tell me what I am doing wrong?
I have attached pictures of my flowering plants which appear to be suffering from some kind of nute problem. I am growing these indoors in coco, they are fed a bit of water+nutes (~600ppm Dyna-Gro Foilage Pro @ 5.6 -- 6.2 ph) every 20 minutes via dripper (just enough to keep the medium a bit wet at all times). The temperature in the room never goes above 85 deg. F and these plants are sitting under a 600w HPS. These plants are on day 47 (approx week 6) of flower. The ones that are just barely flowering are on day 5. All the plants here receive the same nutrient solution. I don't know why the ones in early flower look pristine while the nearly-mature ones get worse by the day. I *suspect* based on reading other threads that this might be P, K or Ca deficiency but not totally sure. Any help would be much appreciated. Thanks! :weed:


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GREENGRASS 420

Active Member
I had a similar problem, ended up being my Oaktron meter, even though recently calibrated, ph was off. I am running hempy buckets with Pro-Mix with Mycro and 25% extra large perlite. Raised ph up to 6.6 - 6.8 and problem went by by.

I would feed "Grow" first week of 12/12 then 1/2 Grow 1/2 Bloom second week then 3/4 bloom and 1/4 grow for the remainder of 12/12. Wanna keep em green and healthy as long as possible. I also utilize Mag Pro and ProTekt and am very happy with addition, ProTekt is the shit! I havent had to stake em since I started using.

Check out "Homebrewer" posts on Dyna series, he is good and very experienced with Dyna ferts.
 
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