Utah State greenhouse mix -- Wollastonite & rice hulls?

effexxess

Active member
Anyone else using this mix?

It is supposed to give balanced silicon and pH.

The mix they use is for all their studies is:
75% peat
13% vermiculite
12% rice hulls
0.7kg/m3 wetting agent
1kg/m3 wollastonite (equals 1g/L)
1.3kg/m3 hydrated lime

Here is a publication documenting performance of the USU mix.

https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1008&context=cpl_hydroponics


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I had never heard of Wollastonite before now!
 
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