Here is the full list of all 18 Farming Simulator 17 trophies - there are 2 bronze, 6 silver, 9 gold and 1 platinum.
Score a three-point field goal in basketball
Reach a negative balance on your very first day
Cut down 50 trees
Cut down a tree
Own a bank account with 1 million ingame money
Pay back an entire bank loan
Collected all trophies
Reach 10 hours playing time in a single savegame
Complete a task for another farmer
Help each farmer at least once
Find all 100 gold nuggets
Cultivate 10 hectares
Sow 10 hectares
Fertilize 10 hectares
Harvest 10 hectares
Breed 20 cows
Breed 30 sheep
Breed 50 pigs