Video from 1943: Tractors & Farm Machinery:

The mechanisation of Agriculture - shows vintage tractors working on the farm, threshers, hay bailers, traction engines, and many other now antique farm machines.

'British agriculture is the most mechanised in the world. Root crops are picked by machinery; machines reap, bind and thresh the grain; the new mechanised methods of planting and watering vegetables are contrasted with the old. Land is reclaimed by machinery to meet today's need for increased food production.'
(Films of Britain - British Council Film Department Catalogue - 1944) 

Trivia:
- The combine harvester seen from 12:35 is a Massey-Harris No. 21, the first self-propelled, mass-produced combine harvester.
- The yellow tractor seen from 04:00 is a Caterpillar D2, produced from 1939-1957.
- The women seen planting vegetables throughout Power on the Land were likely Land Girls — women who were employed by farmers when the usual male workers were called up to fight in the war.

This film & synopsis has been made available courtesy the British Council Film Collection. http://film.britishcouncil.org/britis...