From Longman Dictionary of Contemporary Englishcollective farmcolˌlective ˈfarm noun [countable] TAa large farm that is owned by the government and controlled by the farm workers
Examples from the Corpus
collective farm• Milda was no longer allowed to live in Riga but had been ordered to do hard physical work on a collective farm.• Below: Before independence, Valeriy Gordienko was a farmer on a local collective farm.• He doesn't mean as drones on some collective farm. 