problem during flower..Ca?

[Rob547]

So i always assumed it was a N def. but I gave my 2 plants 2 diff nutes, 1 is 18-18-18 the other is 10-30-20 with similar micro nutes. Today they started lookin different, so I dont think it was N. my only guess is Ca

any help is greatly appreciated.








today:

10-30-20



18-18-18

 

[Grinchynugz]

This seems to be a common problem there are 3 diff. threads of people having the same issue. Including me. My leaves have been fading from dark rich green to a pale yellow and eventually browning. I uses PBP. So do 2 others. I am about the same stage of flowering and have been giving them betweem 800-1000 ppm. You?

 

[Rob547]

PBP? ppm? I assume your a hydro person... All I've really done is give it the 18-18-18, and just a few hrs ago I flushed the fading one and gave them both some dolomite lime. 1/2 tbsp/gal. I'll post some pics if anything changes

 

[Rob547]

bump...
anyone?

 

[Ganja Guerrilla]

(if your growing soil )
I think your issues are PH related I see a couple of defencies

To rule out PH related issues complete a soil runoff PH test.......
with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...collect & test the PH of this runoff water....

If the PH reading is out of optimum range 6.5-6.8 PH, you need to flush your plant.
Flush with PH corrected water, till in optimum PH range, 3 times the volume of the pots rule of thumb but may require much more flushing if the rootball is thick & sour

EG: 1 gal pot = 3 gal. flush

add 1/2 strength nutes to the last gallon of the flush.

 

[Grandad]

Hi there,

In my exprience CA looks more like brown small speckles in the leaf.Dont see it in what you havethere

Your plant looks fine to me- then again mine always get a small bit of something, but this is to be expected. Watch out for overfert- dont get too concerned about this.

I'd flush as Ganja Guerilla suggests- then add 1/2 strength nutes. This sorts out most soil problems AFAIK.

 

[Rob547]

Cool. thanks for the advice. I have checked the Ph before but not the runoff. I just got a ph test kit thing before I left on vacation. However, I will be away from my girls for another 7-8 days

ill post some stuff when I get back though