Market Farming

[Jay Atkerson <jay AT mcreccwb.com>]

I read conflicting research regarding the use of gypsum as a soil 
amendment,  Perhaps the conflict lies in the amount of sodium in the 
soil, but I know little about sodium content in soil.

West Coast data indicate there is no value in the use of gypsum to 
tillable soil but I live in eastern US (South Central Kentucky-Zone 6B) 
and recently saw a local TV Gardening show where a commercial vegetable 
farmer was praising the use of gypsum.  (To break up clay soil)

Does gypsum change the pH of soil and what amounts do you apply if 
indeed it is advisable to use gypsum?  Is there a preferred time of year 
for its application?

Finally, in an related matter, I have access to large rolls of spoiled 
hay.  I'm looking for a "Hay unroller", (Attached to a tractor three 
point hitch) to use as mulch between garden rows.  Does anyone know of 
this use and where can I get this device?

Jay