never heard that before. epsom salt & potassium sulfate in the last two weeks are two of my main stays along with tapering off of the main nutes.
Yup very true!
Here's more.....
Over use of N, By getting to the dark green, shiny leaf point, reduces THC by restricting trich production.... This is a volumetric reduction.
It also restrict's Interior plant THC concentrations by overwhelming or blocking out needed enzimatic actions to produce THC later on.
Higher Mg and K in late bloom. Do much the same, as far as the second part of above. It can vary by just how much your jacking the Mg or K sulfate levels.
So, I can tell your shooting for increasing trich development and bud size, with added density...Correct?
Start your Mg and K supplementing a cpl of feedings before you flip them. Say 5 ml per gallon each with a 1.5 % Mg sulfate mix, and a 6 % K sulfate mix.
Up that to 10 per at the flip and stop use at week 6 or 7 (at least 3 weeks of no supplementing to run down the media and plant held concentrations)
Supplement makers are selling you only on the
"Bigger and Better" aspect. They don't care what the WHOLE truth is. Only that most growers understand that
"Bigger and Better" is their goal.
So Product XYZ at stupid cost will do that......The real cost, is hidden from you....
The whole late run Bloom Booster thing is way overblown and
poorly applied.