To much fertilizer, back off on it.. Apply phosphorus but only moderate nitrogen when you set out your plants, and then avoid fertilizing again.. Again, though,, Extremely dry or humid air can interfear...
Nitrogen encourages leaves to grow and phosphorous encourages fruit set. AVOID, Synthetic fertilizers , aka (Miracle gro) USE, (
2-6-4) AVOID over-watering!
(Pro Tip)..
Use Blackstrap molasses, in watering, (about one Tablespoon per gallon of water).. SERIOUSLY!.. Calcium and magnesium helps with fruiting..
Watch your plants turn dark green in about a week..