How long will lime last in sandy soil? Macon county Al. Is it necessary to sample soil annually?

I would test it every 3 years just to see where you are . That's what i have always been told but maybe someone else can chime in that may know more .

Took me 2-3 years to adjust pH from 5 to 6.7. Sandy soil where we cleared pines. That was about 5-10 years ago. Soil test show it’s still close to 6.7. I think cover crops and minimal (or no-till) help tremendously with keeping pH stable

Thanks. I'll test this year and see what the deal is

Also ag lime takes longer to work, but also lasts longer. Then pelletized lime quicker but less longevity, and liquid has very little longevity.

By ag lime do you mean the powdered lime... If so that's cheaper too.

Yeah, typically it is the lime you by the dump truck or spreader load.