PEI’s soil is very acidic; too acidic for many common crops. In order to neutralize the soil’s pH, early pioneers found that mussel mud (clay from the shore with a high concentration of mussel and oyster shells) had an alkaline effect on the soil and made it viable for planting.
Later, as technology and trade improved, farmers made the transition from the laborious process of harvesting mussel mud to purchasing lime to be spread by tractor on the fields for the same effect.
In Ellen’s Diary entry from June 13th, 1957, she mentions spreading lime by tractor. Interestingly enough, she also mentions seeding with a horse-drawn seeder, illustrating how the mid-20th century was a true transition period in agricultural technology.
“What a busy field it was there by the roadside at that other farm this morning! The younger farmer was spreading lime with tractor and spreader, Jamie following was harrowing it in, in nice sweeps of the machine. Rob was sowing with the horse-drawn seeder, James chore to keep him supplied with the ‘straight oats’ and the ‘grass seed, which went today to ‘seed it down.’’
‘Many hands,’ James smiled, obviously well-pleased with the progress of the cropping.”
Ellen’s Diary, June 13th 1957