Here is the full list of all 24 Farming Simulator 19 trophies - there are 6 bronze, 11 silver, 6 gold and 1 platinum.
Collect all trophies
Complete 100 missions
Cut down 25 trees
Breed 30 sheep
Breed 20 cows
Complete 50 missions
Cultivate 100 hectares
Sow 100 hectares
Harvest 100 hectares
Breed 50 pigs
Breed 100 chickens
Fertilize 100 hectares
Reach 10 hours of playing time in a single savegame
Sow 10 hectares
Cultivate 10 hectares
Harvest 10 hectares
Own a bank account with 10 million ingame money
Cut down 1 tree
Cultivate 1 hectare
Sow 1 hectare
Harvest 1 hectare
Complete 1 mission
Fertilize 10 hectares
Fertilize 1 hectare