I don't know what it is but I would say it's a big NO NO too. I know you think you may need it but I just went through learning not too much even in veg. I got a bit of nute burn. If I had to it would be right when the lights go out. The spray and the light will cause more burn. They need to dry out in the dark if you can control humidity. I would not risk mould on my buds. You already have done enough. If you take the chance keep us up so others can learn. Please don't take that chance.
LOC NAR on probation Reviewed by LOC NAR on probation on . Foliar spraying When flowering, when is the best time? Rating: 5