Slurry Spreader Min Water Rates

[Nsoiled]

Looking to put out some compost at a very low rate across all acres.
In this case 50 some hectares.
What kind of rates can slurry spreaders manage (l/ha)?
Will need aggitation to keep particles in suspension.
Material has been screened down to 20mm.

Any thoughts gratefully received.

 

[Scholsey]

Use a limespreader or a disc muckspreader?