Masterblend issues

Bean_Boy · Jun 18, 2020

Hi Everyone,

This is my first post, but I've been reading a while. This is my first grow (medical state), and since I had such great luck with masterblend with veggies, I figured I'd try it for cannabis too. Anyway,

I'm in week 5 of flower, she is showing signs of K deficiency, and all bud growth seems to be at a standstill. I misread her, thinking she needed to be defoliated, and probably stressed her out even more. She has light stress too, light is turned down to about 40%. I tried supercropping to get her away from the light. Roots look good, maybe a little brown from GFF. She is lacking the vigor she had before. Strain is purple maroc, growing indoors with dwc, adequate ventilation, and a QB led light 3500k

How are masterblend users mixing for flower? I'm looking for an idiot proof, KISS method for my first grow. I'm kind of freaking out. Using 75% mb mix, 75% Epsom, and 50% calnit. Today, I changed the res again to a full strength batch, with 75% calnit. Any help is greatly appreciated. Thank you

Beachwalker · Jun 18, 2020

Bean_Boy said:
Hi Everyone,

This is my first post, but I've been reading a while. This is my first grow (medical state), and since I had such great luck with masterblend with veggies, I figured I'd try it for cannabis too. Anyway,

I'm in week 5 of flower, she is showing signs of K deficiency, and all bud growth seems to be at a standstill. I misread her, thinking she needed to be defoliated, and probably stressed her out even more. She has light stress too, light is turned down to about 40%. I tried supercropping to get her away from the light. Roots look good, maybe a little brown from GFF. She is lacking the vigor she had before. Strain is purple maroc, growing indoors with dwc, adequate ventilation, and a QB led light 3500k

How are masterblend users mixing for flower? I'm looking for an idiot proof, KISS method for my first grow. I'm kind of freaking out. Using 75% mb mix, 75% Epsom, and 50% calnit. Today, I changed the res again to a full strength batch, with 75% calnit. Any help is greatly appreciated. Thank you

I've been mixing masterblend exactly as directed for years, whatever the problem is it's not likely from the masterblend

I recommend you follow the manufacturer's recommended mixing instructions from Veg straight through Bloom

This is a debatable point but in my opinion it's a myth that flowering plants need higher PK

Edit: a little late now but in general if someone is on there first grow maybe don't try to do every technique they've seen on some YouTube video

Lets see if we can find mr. Plumber, aside from his somewhat irrational hatred of soil he's a master at Master Blend! @PlumberSoCal2

Bean_Boy · Jun 18, 2020

Beachwalker said:
I've been mixing masterblend exactly as directed for years, whatever the problem is it's not from the masterblend

I recommend you follow the manufacturer's recommended mixing instructions from Veg straight through Bloom

This is a debatable point but in my opinion it's a myth that flowering plants need higher PK

That's exactly what I was looking for, thank you very much

Beachwalker · Jun 18, 2020

Bean_Boy said:
That's exactly what I was looking for, thank you very much

As the plants matures I cut back the overall PPM, but I never adjust or cut nitrogen, or increase PK

Aqua Man · Jun 18, 2020

Adding a buncha calcium? Or have high calcium source water? Have some pics?

Bean_Boy · Jun 18, 2020

Beachwalker said:
As the plants matures I cut back the overall PPM, but I never adjust or cut nitrogen, or increase PK

Do you know what EC/ppm you end up running toward the end of flower?

It's good to know you don't have to pump it full of snake oil. Thanks again

Bean_Boy · Jun 18, 2020

Aqua Man said:
Adding a buncha calcium? Or have high calcium source water? Have some pics?

I tried adding honey, I think the calcium in it is screwing it up. I read honey was supposed to help roots, flowers, and minerals. (Please don't flame me haha) Shoulda kept it more simple. I was using half tap water also, which is around 400 ppm. The last batch I did today was full RO

Aqua Man · Jun 18, 2020

Bean_Boy said:
I tried adding honey, I think the calcium in it is screwing it up. I read honey was supposed to help roots, flowers, and minerals. (Please don't flame me haha) Shoulda kept it more simple. I was using half tap water also, which is around 400 ppm. The last batch I did today was full RO

Yup that's a K deficiency alright. High calcium or phosphorus can affect K uptake.

Bean_Boy · Jun 18, 2020

Aqua Man said:
Yup that's a K deficiency alright. High calcium or phosphorus can affect K uptake.

Thank you! I'm going to try straight masterblend and hope for the best. I think the honey could be adding too much P maybe? Appreciate the help everyone

Aqua Man · Jun 18, 2020

Bean_Boy said:
Thank you! I'm going to try straight masterblend and hope for the best. I think the honey could be adding too much P maybe? Appreciate the help everyone

Not sure never used honey

Bean_Boy · Jun 18, 2020

Beachwalker said:
a little late now but in general if someone is on there first grow maybe don't try to do every technique they've seen on some YouTube video

Lets see if we can find mr. Plumber, aside from his somewhat irrational hatred of soil he's a master at Master Blend! @PlumberSoCal2

Agreed, the light burn was making me panic. The plant got taller than I thought it would. The tent is too crowded to do any low stress training too. Many beginner mistakes

I'm open to any pointers!

Aqua Man said:
Not sure never used honey

I'm going to stay away from it until I can get through a full grow haha

rmb0513 · Jul 4, 2020

Ive used MB through a few grows with out any issues
I do use ro water if im short i get it at walmart for .37 a gallon
I double the amount of calmag as ro has basically nothing in it
I make up 3 gt mason jars with nutes
60g cal 60 g MB 30g epsom salt
i use 1 cup of each in 3 gallons of water with out any issues
anything i can add to sweeten up the bud or increase yield?

Bean_Boy · Jul 6, 2020

rmb0513 said:
Ive used MB through a few grows with out any issues
I do use ro water if im short i get it at walmart for .37 a gallon
I double the amount of calmag as ro has basically nothing in it
I make up 3 gt mason jars with nutes
60g cal 60 g MB 30g epsom salt
i use 1 cup of each in 3 gallons of water with out any issues
anything i can add to sweeten up the bud or increase yield?

Thanks!

rmb0513 · Jul 7, 2020

welcome

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