Is there anything good to say about ash?

As superintendents from San Diego to Santa Ana have spent the past week, worrying along with everyone else, about the wildfire damage, brief interludes onto the lighter side have occasionally been necessary in order to avoid going stark raving mad. One question that surfaced, and that actually has relevance for turf managers even outside California, is the effect of ash on plant health. While we know that it's bad for air quality and for our lungs, is it also a…