Pk booster

[bklyngenitix]

when is the best time to give PK booster and when do you start count days in flower?

[GEORGE]

I don't really know the best time, but I give it first of flower all the way through the end sometimes. reason, it is said to help build strong roots among other things.

[CityDweller]

I start counting flowering once i see some bud development.

[CheapHomeGrown]

I start counting flowering once i see some bud development.

I count the flowering from the day I switch over to 12/12, is it best to count flowering from the day I see some bud development?

[ValdtheImpotent]

I count flowering days from first appearance of bud sites. The problem with counting from 12/12 flip is that plants will take a different amount of time to start flowering depending on how mature they are. An immature plant, one that has say vegged for 4, not showing staggered nodes or pre-flowers will take longer to start flowering from the flip, than what a mature vegging plant (showing pre flowers and staggered nodes) would.
At the end of the day it doesn’t really matter, breeder’s flowering times are optimistic at best. Usually by the time plants are almost ready for harvest I’ve forgotten how many days they’ve been flowering, it doesn’t mean anything, all that is important is the colour of the trichomes.

[Samwise Gamgee]

As Vlad said

I usually veg my plants for 8 weeks, so generally find when I flip them to 12/12 they only take a couple of days before they are crowning up and starting to show signs of flower. General rule of thumb is to keep them on veg nutes for the first 7 days you flip to 12/12, then after 7 days switch to flowering nutes, and start counting from their.

These are only rough timings, its best to check the trichs before chopping and wait till you are showing cloudy with a few ambers, which can some times take a little longer than the advertised flowering time.

As for PK I would add it as soon as you flip to 12/12, as PK also aids in the transition from veg to flower, so they will essentially flower faster than without the extra PK.

Good luck

[CheapHomeGrown]

As Vlad said

I usually veg my plants for 8 weeks, so generally find when I flip them to 12/12 they only take a couple of days before they are crowning up and starting to show signs of flower. General rule of thumb is to keep them on veg nutes for the first 7 days you flip to 12/12, then after 7 days switch to flowering nutes, and start counting from their.

These are only rough timings, its best to check the trichs before chopping and wait till you are showing cloudy with a few ambers, which can some times take a little longer than the advertised flowering time.

As for PK I would add it as soon as you flip to 12/12, as PK also aids in the transition from veg to flower, so they will essentially flower faster than without the extra PK.

Good luck

wow 8 weeks in veg, they must be massive, gave mine 3 weeks in veg.

[Samwise Gamgee]

wow 8 weeks in veg, they must be massive, gave mine 3 weeks in veg.

You can control the size by starting them in smaller pots, and then potting up into larger pots. I have a small tent, that is 0.75m x 0.75m x 1m, with a 96w Flo light that I use for veg, I usually grow them to 5 weeks in this tent, then plant them into their final 18 litre pots in my 1.2m x 1.2m x 2m flowering tent, this helps to reduce grow times by a few weeks, as I can start plants off well flowering plants

A longer veg does mean the plants are generally a lot stronger, but with training and potting up you can control the size

[ValdtheImpotent]

wow 8 weeks in veg, they must be massive, gave mine 3 weeks in veg.

Popped her head above soil end of January, she’s been in veg over 3 months now.





As Sam, it’s just a matter of holding them back. A couple of times I’ve taken her out the pot, cut a third of the root mass away with a bread knife, put her back in the same pot with some fresh soil.

[Farmer Geddon]

Mastering logistics, which imo includes training, is the key to maximising yields. Not that I'm great at training but I have a rough idea of how many plants in what size pots will fill a specific grow space.

As long as the plants stay healthy, mostly it matters not what the nute regime is. With equal everything, including genetics, the fullest canopy yields the most. If it's a single free range plant in plenty of space, then it matters. The nute regime can make up to 15% difference.

How adding PK seems to work as a boost is that it reduces the amount of N available to the plant. Rather than learn botany, I view the plant as a survival machine. eg. really shitty environment, unlikely to live long enough to make seeds, produce nanas, throw pollen to the wind and hope for the best. Ideal environment, stay female and make 1000s of seeds. Is the pollen nearly here yet?

For survival, strong branches > weak branches. She doesn't care much about her fruit. It's only there to aid in the production of seeds. We would rather she made bigger buds than spend energy making stronger branches. Reducing the N available to her does that.

The $64 question is by how much to reduce the N? On a plant by plant basis, nobody knows for sure until they learn by doing, it's a foggy science. Get it wrong and the hoped for gain could become a large loss. Playing with nute regimes is not for those with empty jars. Plain vanilla zero skill grows yield surprisingly well. With full jars, it's time to learn stuff. Unless you're as lazy as I am.

Greenleaf has some common sense advice. Adjust the amount of Mega Crop used to get a healthy shade of green. ie. no yellow or dark waxy green leaves. In flower, gradually up the amount of PK until adding more gives no extra benefit. Their feed chart has PK added from the start of flower, 0.26g/L rising to 0.4g/L from week 4 onwards. They list the ec as 0.3 and 0.45 respectively. Their updated PK formula is 0-34-34 so keep that in mind if attempting to mimic their chart with a different brand of PK.