My idea was this. We all go to the office/factory/whatever to work. We get paid a salary at the end of the week/month. Why not do the same with farms?
The state owns a lot of land - there is no reason why some of it can't be cultivated. You hire staff to work on the farms, you hire people with an understanding of agriculture and other people with an understanding of business and management to manage these farms.
The state owns the land and the produce. The farming staff get a salary and a percentage of profits each year shared our amongst them. The better the crop, the bigger the bonus. The management/agriculturalist staff get an appropriate salary and also a performance related bonus. They get offered much higher bonuses to incentivise them to maximise the yield. The end produce is owned by the state and sold to government utlity stores. All staff are owned by a private company. The state pays the partner company an annual fee for providing staff. There are KPI's agreed with the company, hitting them or improving on them results in a percentage of profits as a bonus, missing them results in being paid less, or risking termination of the contract.