weedstoner420
Well-Known Member
Gonna reiterate this because it took me forever to learn, and the plants I grew in hempy buckets usually ended up looking like yours.Low rh/ plant drinks more = nutrient burn.
In an inert medium with salt fertilizers, there is no "right" concentration to feed. It's totally dependent on plant and environment. If your humidity is low, the plants are going to take up a lot more water, but they're going to need the same amount* of nutrients (*total quantity, not concentration). If you feed a high concentration of nutrients (like what's recommended on the label, which might work in a greenhouse with 70-80% humidity) your plants are going to take up an excessive amount of nutrients along with the extra water, and get burned.
Fwiw, I've since switched to growing in organic soil with dry amendments, and I have never gotten nutrient burn by following the directions on the product. Yet with synthetic nutes it's always "start at 1/4 to 1/2 the recommended amount and increase if you see deficiencies." But that is another conversation for another thread...