I need some input! I have a 20x32 (approx) area that had previously been occupied by an above ground pool . The pool is now gone, the subliner sand shoveled away revealing virgin black soil about 6" deep and then sandy loam/clay. I tilled the area thoroughly and then added 70 bags of composted manure, then tilled that in. We planted several different tomatoe plants, various kinds of peppers, squash, cantalope, and eggplant. All were from Bonny Plant Farm starts.
I "plowed" into 6 raised rows about 10" high and set the plants in at the growers specifications. They seemed initially to do well. We received several days of rain in biblical proportions and then went into our normal rain/dry cycle.
The tomatoes were the first to show problems. The lower leaves/stems started turning yellow, then brown, then dead. Soon the tomatoe plants were bare from the bottom 2/3rds. All other vegitables followed suit. Some did produce pittiful looking fruit. The squash and cantalope flowered and never produced anything. One egg plant made one fruit. The peppers (banana and jalapeno) made a few that got to a pickable size.
I need suggestions. Did I over do the composted manure? Should I amend the soil with top soil from a dirt/gravel company? Or should I only buy sanatized top soil (EXPENSIVE)
We have an extension office in a nearby town. Do they normally do soil samples that would be of benefit?