Has anyone ever used PhoSul in place of soft rock phosphate?

[Growdo Baggins]

I'm not sure about any differences in availability.

 

[YumYum]

That appears to be rock phosphate with added things. The only thing that concerns me is the added silicon dioxide which I dont really see in a general fertilizers makeup. That makes me think it is a specific fertilizer for something. For what though? Fig trees contain silica so maybe good for that? It is basically a sand so probably harmless to most vegetables. Maybe good for turf grass?

 

[Growdo Baggins]

That appears to be rock phosphate with added things. The only thing that concerns me is the added silicon dioxide which I dont really see in a general fertilizers makeup. That makes me think it is a specific fertilizer for something. For what though? Fig trees contain silica so maybe good for that? It is basically a sand so probably harmless to most vegetables. Maybe good for turf grass?

That's interesting, thank you