Auto flowering nutes

for auto flowering plants should you use grow and bloom nutrients or just one part nutes or what??

To be honest, autoflowers don't really need nutrients. If you want though, I'd MAYBE give them one 1/2 dose of vegging nutes (I'm a foxfarm fan, so "Grow Big") and then a feeding or two at 1/2 strength for flowering nutes. You can get by without feeding them though.