yeast water in the garden

Hi all;
Normally, you would find my posts in the energy or piggie forums.
This could be my very first post in the gardening forum!
Being home all the time now, I find I have more time on the computer... who would have guessed!

I watched a fascinating video with a totally crappy AI voice-over.
The gist of it was 2 tablespoons of yeast and one tablespoon of sugar, mixed in one quart of water.
After activating, this is diluted with 10 parts water, and the resulting mix is applied three times.
When first planting, when the foliage is greening, and lastly when fruiting.
They claimed this mixture introduced biodiversity in the soil, promoting strong root growth, with corresponding plant size and fruit quantity.

Is this true? It seems too easy...
Gerry thought it sounded like what biochar does to the soil.
Any expert gardeners here at Permies???

I mixed up a batch, and I gave my seaberries a nice yeast watering!
They were already growing like crazy. I am very pleased with the nursery that I purchased them from.
I'm hoping to see even more new growth now that I have set them to "rise"!