I have 2 issues, help is needed.

[canabuder]

Hello everyone
I have a plant that is in the third week of flowering. The plant has 2 issues, first is the yellow / brown spots on the leave, second is that some leaves are cruling up and down. I give the plant water with 6 ph and with a bit of organic firtilizer with pk of 13 14. What are the problems and how can i fix them?
Btw temprature is around 26 and humidity 40-50 %
Thanks in advance!

 

[Switcher56]

Looks like a possible nute burn to me. Too much potassium. The value of your pk seems high.

 

[canabuder]

Thanks for the reply, how do you know it's too much potassium and not too little?

 

[Crooked8]

Plant looks like it is lacking nitrogen and is deficient as well as suffering some nute burn. What nutrients are you using? Which soil are you in?

 

[canabuder]

Plant looks like it is lacking nitrogen and is deficient as well as suffering some nute burn. What nutrients are you using? Which soil are you in?

I am using a regular soil from the nearby flower shop, I am adding organic firtilizer to of 13-14 pk to the water.

What is the solution? Do I have to buy a firtilizer with N? Do you think flushing can help? Is there anything at home I can use to add some N to the plant without buying firtilizer?

Thank you.

 

[GrowbaratoIbiza]

PK 13/14 is normally an extra additive for during flower stage for using on top of your normal flowerinh NPK nutrient. Your plant could be taking on too much potassium which could cause an iron deficency. The ph of 6.0 could also be locking out magnesium.

I believe you need to wash out (flush out) some of that exesive potasium. And feed your plant lightly with a basic flowering nutrient and a light cal mag solution which normally has iron too. Also only use water with a ph of 6.5 to 6.8 at this point, as not to cause magnesium lock out.

 

[Lester Beans]

Your pH is too low. pH 6.5-6.8 for soil. This is the cause of both of your problems.

 

[Switcher56]

Thanks for the reply, how do you know it's too much potassium and not too little?

From the deficiency "troubleshooting charts". I don't have the value for all ferts out there (I'm using the GoBOx from Gebneral Organics but my numbers look more like (NPK):

• grow 4-3-3
• bloom 2-2-4
• Cal/mag 1-0-0
• bio root 0-1-1
• bio weed 0-0-0.5
• bio marine 2-3-1
• black diamond 0-0-1

Therefore 0-13-14 is not only lacking nitrogen your numbers are higher by a factor of 3.

 

[Douglas.Curtis]

Nutrient burn from over fertilization.

Take a look at what the soil is amended with before you took it out of the bag, most likely there was no need to add fertilizer just yet.

Water it heavily, then keep adding water until you've slowly allowed a few gallons of water to go through the soil. This will leach some of the excess fertilizer out. Let it dry out until it's barely moist about 2 inches down in the soil.

Resume regular waterings with pH'd water for 2 weeks and it should turn around and get healthy. It should stay healthy for a bit and then begin to fade before harvest.

 

[944s2]

Your pH is too low. pH 6.5-6.8 for soil. This is the cause of both of your problems.[/

 

[944s2]

Your pH is too low. pH 6.5-6.8 for soil. This is the cause of both of your problems.

The above and what Douglas posted,,,,,,s2

 

[MrBungle]

Media pH is most likely too high....The fact that he doesn't have N (specifically NH4) in his nutrient solution makes me think the media pH is drifting upwards, which is why there are Phosphorus toxicity blotches..



The media Ph trending upwards makes the P more available...

 

[Douglas.Curtis]

What does the bag of soil from the shop say for nutrient profile? NPK values?

 

[Teddybrae]

Yeah ... what Douglas says and 944s2 says.


Man, you need to understand N P K and the relationship between those minerals!

 

[doams]

add some N into the mix looks very light green.

 

[St. Phatty]

What kind of pan is the pot sitting in ?

It's important for the pot to not sit in the water that has drained out of the bottom.

I use pieces of wood 2x4 and drain into busboy trays (15 x 20) or concrete mixing tubs (24 x 36).

 

[canabuder]

Thanks for all the answers, i was only using pk 13 14 until now but yesterday i went to the store and got some better food for the plants.