Never heard of them but I see no reason why you can't. I prefer dry nutes when growing in dirt.
Any reason why you like dry Nutrients better?
For dirt it's easier and I find it better in most cases. Organically done is a good brand.
Anything that can be found as a dry amendment is going to be easier to use as a soil additive. There are some things that just aren't available in a dry form or just really aren't practical indoors. One of the big things is that some dry amendments are long term soil amendments that last years and aren't especially available right away so they aren't the best choice for short term crops indoors.
They aren't available like that day but the plant has access to them to break down and feed as needed. I generally use them to make super soil and top dress as needed. I'm not sure what nutrient that wouldn't be practical indoors other than straight cow shit but that's nothing you want unless your adding to a composter or something imo.
The nutrients that are meant to last years in planting beds aren't at all practical in a scenario where you're going to have a plant in the soil for just a few months.
