'optimum' soil temps?
I'm interested to get some feedback on what many consider 'optimum' soil temps for germinating various veggie seed. Beginners realize that different types of veggies prefer to be grown under certain temperatures (air), but not realize that soil temperature affects germination and early growth. But what does 'optimal' soil temperature actually refer to? I assume all those numbers in various tables take it to mean the temp at which you'll get the highest percentage and/or fastest germination. But is it always best to sow seed in that 'optimal' range? I think it could be a mistake to just look up your crop in one of these germination tables and then start sowing when your soil reaches that 'optimum' temp. Especially for spring veggies. I've seen many tables cite that the optimal temp for pea germination is 70F. Ok, maybe that's true. But certainly it could be a mistake in my climate to wait until the soil reached 70F to plant a spring crop of peas. They would be burned up in the summer heat before cropping much. It's best to sow when soil temp is around 50F maybe. I guess I'm saying there's a disconnect between these data tables and the real world sometimes. What do you think?