It isn’t the soil type, it is the amount of active microbes and minerals in the soil. We just add all the trace and major minerals. My husband makes a blend called Maury’s Minerals which he uses here on our farm and also sells. It has humate added to make it uptake better. For mulching tomatoes I like to use the pine
wood chips out of the goat stalls with manure mixed in, which we then
compost. Tomatoes thrive with that fungal dominant
mulch, and I’m sure it gives them that good, rich, tomato flavor too.
With appropriate microbes, minerals and organic matter, there is no need for pesticides or herbicides.