Phosphorus or Potassium during flower???

.Smoke

Well-Known Member
Have read different views.
What do you all raise most during flowering? P ir K?

First grow btw..
 

Hydro4life

Well-Known Member
Have read different views.
What do you all raise most during flowering? P ir K?

First grow btw..
If I was on my 1st grow, I wouldn’t worry too much on fine tuning your p or k ratios. If you have a good base nute then add a good bloom booster early to mid flower and the manufacturer should have done most of the work for you 8-) keep it simple on your first grow and concentrate on having a good environment and keeping the plants happy and healthy. And remember with bloom boosters that a little can go a long way ;-)
Good luck!
 

homebrewer

Well-Known Member
Medium is soil.
I'd use a veg formula from start to finish then. Halving the recommend dose is a good place to start.

No matter what you're growing in you still want P and K levels to be even or K slightly higher in the last 3 weeks,prior to that P levels should be higher than K but Ca is the most important nutrient for early flower
It depends on your medium/growing method.
 

JayBio420

Well-Known Member
Start with increasing nitrogen in veg, Increase your P based on the size/growth of your plant at end of veg and during preflowering, increasing it during flowering, peaking just before maximum bud size, and K increases in relation to the change between veg and flowering, but plateaus in relation to the spike that P does.


That’s how I do it anyway. I’m really looking for more info and opinions on this myself...
 

.Smoke

Well-Known Member
I'd use a veg formula from start to finish then. Halving the recommend dose is a good place to start.



It depends on your medium/growing method.
Just switched to a veg formula that is 17-18-28.

Soil is an organic mixed with a lttile Miracle Gro Potting Soil <I know...>
Have been feeding with a 24-8-16 so far for 6 weeks from seed now.
They <3 bag seeds> started out under old florescent basement lights and just went under a 315W CMH a couple days ago.

Net is 48"X48"X68"
Pots are 17 Gallon.

I'm thinking maybe another month for Veg?
What do you all think?
20190720_132900.jpg
 
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Hydro4life

Well-Known Member
19 years of practice. It's no 'theory'.
Your theory has me stumped tbh Homebrewer lol. Do you add bloom boosters through flower? I’ve accidentally used veg nutes in flower instead of bloom. and the plants/leaves showed faint signs of nitrogen toxicity and buds didn’t swell/put on weight. If this were the case then why does every other plant require potash etc. Or the likes, to assist in flower/bud/fruiting? Or is MJ in a class of its own?
Sorry man, but I don’t get your theory.
 

homebrewer

Well-Known Member
Just switched to a veg formula that is 17-18-28.

Soil is an organic mixed with a lttile Miracle Gro Potting Soil <I know...>
Have been feeding with a 24-8-16 so far for 6 weeks from seed now.
They <3 bag seeds> started out under old florescent basement lights and just went under a 315W CMH a couple days ago.

Net is 48"X48"X68"
Pots are 17 Gallon.

I'm thinking maybe another month for Veg?
What do you all think?
View attachment 4367632
I'd stick with your 24-8-16 and keep doing what you're doing. Your plants look great.

Your theory has me stumped tbh Homebrewer lol. Do you add bloom boosters through flower? I’ve accidentally used veg nutes in flower instead of bloom. and the plants/leaves showed faint signs of nitrogen toxicity and buds didn’t swell/put on weight. If this were the case then why does every other plant require potash etc. Or the likes, to assist in flower/bud/fruiting? Or is MJ in a class of its own?
Sorry man, but I don’t get your theory.
That's operator error. If you're overfeeding plants with ANY formula that will definitely affect flower production.

In regards to plants in containers requiring potash, veg formulas supply plenty. You can add more if you'd like, say potassium sulfate for example, but it wont increase your yield, only add sturdiness to your branches.
 

.Smoke

Well-Known Member
I'd stick with your 24-8-16 and keep doing what you're doing. Your plants look great.



That's operator error. If you're overfeeding plants with ANY formula that will definitely affect flower production.

In regards to plants in containers requiring potash, veg formulas supply plenty. You can add more if you'd like, say potassium sulfate for example, but it wont increase your yield, only add sturdiness to your branches.
Will do.
Maybe throw in a little bloom boost in during flower?
 
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