Two plants having different problems. Your expertise much appreciated!

[thebirdman17]

Hello folks

So, I am 4 weeks into flowering on my new crop and after opening up the tent today noticed some problems on two of my plants. These problems are new. I tried researching around to figure out what the problems were and as far as I can tell with my level of expertise one of them is experiencing nutrient lock and the other is having nitrogen deficiency. I crushed up some dolomite lime and put it in my water when I watered today to help with the PH level should nute lock be the problem but have no idea what to do with the other plant. If you could either confirm or deny my diagnoses and give me some guidance as what to do I would be very grateful.

Thank You

Birdman

 

[imchucky666]

Your plant age, normal feeding habits/schedule would help, but to me, the first one looks like potassium and foliar feeding with epsom is needed (worked on mine for rust spots), and the second one looks like it needs more nitrogen.
More details included with the question leads to a more accurate diagnosis

 

[MrGhettoGrower]

I hate that helpless fricking feeling of not knowing what to do who knows
does the whole plant droop like the first pic that could be overwarering or
wheatever......

 

[HotShot7414]

U might be right about the diagnoses the stem on the fan leaf is turning purple that means P deficiency.I'd take a small dose of water soluble nuts and spray(mist) it down try to avoid the flowers tho.After spraying give it 20-30 mins to see if it has any bad effects either way re-mist with plain water just to make sure it isn't nute burn.

 

[birdmananyweather]

do you PH test your water? are you using soil? different soil mixes have different ph so you have to adjust accordingly. what nutes are you using?

 

[thebirdman17]

do you PH test your water? are you using soil? different soil mixes have different ph so you have to adjust accordingly. what nutes are you using?

Sorry for the late reply family came in to town and I had to do some entertaining. Anyhow, some info that I did not include.

--Soil (FF ocean forest with extra perilite and dolomite lime mixed in)
-- Plants under a 400w HPS
-- PH between 6.5 and 7.0 (I use the drop test kit so its not all that accurate
-- I use the Lucas Formula ever 3 watering sessions (have used superthrive 2x during this grow cycle)

Some other info.

--About a week ago my timer malfunctioned and my plants got 3-4 days of 24 hours of light about 3 weeks into flowering.
--My plants are the plant with the yellowing leaf is a Nirvana Northern Light and the other plant is a Nirvana Papaya.



And thank you again for your help.
Birdman

 

[birdmananyweather]

how long did you vegg for? fox farm is what i used because you always PH treat your water mixture or plain water to 6 (my buddy owns a horticulture shop and knows his shit) i would say flush real good and give it just water, then that dries out slowly add your nutrients again. have you been flushing yours? i flush my soil every 30 days, you might just have nutrient lockout from the excess amounts of nute action. i would say flush real well and then start the feeding regiment over slowly

 

[thebirdman17]

I vegged the plants for around 1 month before flipping them into flowering. What is the proper procedure for flushing in this situation? They are in home depot buckets with holes drilled in the bottom.

 

[slayer6669]

i could be way off but what i would do is give the yellow one more nitrogen and the other one cal/mag. and you might have done this already but i would water with plain water and catch the runnoff in a glass and check its ph and ppm

 

[*BUDS]

nute lock be the problem

Because you didnt accurately check the PH of waterings and feeds, overtime the PH is so far out the plants have several deficiencies.
There is also a concern with your soil quality.

 

[Hotboxbudz]

It looks like a PH problem to me. The brown spots are from calcium def...most likely due to low PH.

 

[thebirdman17]

Because you didnt accurately check the PH of waterings and feeds, overtime the PH is so far out the plants have several deficiencies.
There is also a concern with your soil quality.

Any can you either give me a recommendation on what article to read on how to fix this as their are millions of different things I find when I use the search bar or give me instructions on what to do to fix this situation.

Thank You

Birdman

 

[slayer6669]

get a ph meter and some ph up and dpwn and ph you water before you feed if you have to or just use dolomite lime in your medium and it will help buffer the ph of your water when you feed. plus itl give it calcium and magnesium