I filled 220sq feet of raised beds earlier this spring with 10inches of soil comprised of 5yds organic compost and 2 yds premium screen top soil (about 50/50 by mass). The beds are open on the bottom. I amended this mix with the recommend dose of Espoma Garden Tone. Unfortunately, I have all my mixed vegetables planted already and I'm seeing yellowing of entire plants and extremely stunted growth. Night temps have been fine and plants outside of these beds are growing just fine, green and lush with the same amount of water. They get plenty of sunlight as well.
I feel like the High PH is preventing nutrient uptake and iron chlorosis. I've foliar fed with a 2-4-2 fish emulsion at half strength once and it didn't seem to do much. Also, tested a dose of a soluble 25-9-15 fertilizer on a few plants with almost no effect.
Since my plants are already in, I'm considering top dressing with peat, elemental sulfur and doing an Iron chelate drench to get me through this growing season. Maybe continuing foliar feeding since nutrient uptake seems to be an issue. I'll mix in the sulfur and peat once I've got the plants out and retest in the fall and spring.
Any help would be much appreciated!