I apply liquid fertilizer via an injector and my drip system, and occasionally with a watering can when I don't have the drip system in place yet.
Whenever I read a fertilizer bottle/package/instructions it typically says to apply once or twice a month.
Is this because plants need a jolt of fertilizer and then a "rest" period? Or is it because the writers assume people won't make the effort more than once or twice a month?
Would plants prefer a continuous stream of less-concentrated fertilizer if it were available?
BTW I'm asking mostly with regard to vegetables.