Sprayng nutients on plant after plants couple months old??

I heard it's good after the plant has ben growing for a couple months or so to spray the plant because the roots might not be able to absorbe all the soil nutrients so you use the spray on the leaves with whatever nutrients you want to use with water, what do you think of it???

Ive had mine from clones and I usually spray them every night and now they are like 15-20 inches tall but, I didnt use nutes till like a week ago and now it seems like the leaves might not be appreciating that too much now, it seems like some of the leaves are gettin deformed or somethin. they are still a nice green though so Im not sure. good point though, Ill be checking back for this answer from someone experienced

you can spray some nutes on the leaves. you should do it when it's dark otherwise you'll get leave burn. you should only do this when plants are in veg. doing it during flower leads to bud rot and fungus