Many Auto's are crossed with Photo's. Your specific lagging Auto might be a Photo pheno. I recommend you change the lighting if indoor or add kelp extract if outdoor to encourage flowering.
I use one cup of molasses per 5gal of water and add a scoop of dry koool bloom, once a week the last two weeks of flowering.
My plants are outdoor in the ground, so i fill the little moat around each plant with the solution.
The F1 DHN Romulan x HK/Rudi seeds, should be ready by the last week of May and ready to grow out June 1st. This F1 Romulan/HinduKush/Ruderalis will be Heavy Indica and ready in 5 months, Outdoors from seed to harvest.
This is my Auto breeding program:
-Male Hindu Kush x Mexican Rudiralis
-Romulan clone from Dark Heart Nursery
-Grape Yoda Female's
-Hindu Kush x Mexi Rudi Female's
Got my Hindu kush direct from Osamas hash plantations via my Army buddy.
Soil: Kellogs raised bed soil= $7 for 3sqft
Organic initial Nutrients: composted steer manure= $4 for 2sqft
or whole Tilapia Fish $2.00 each
Flowering Nutrients: Dry KoolBloom $25 per Lb
and 5gal bucket of Molasses $20
A simple soil set up is dig a 3'x3' hole in the ground and back-fill with a shovel of composted steer manure and Kellog's raised bed garden soil. Or go Native American and place a whole Tilapia fish at the bottom of your hole before backfilling with Kellog's. You will see vigorous and sturdy...