Farmville crops (plowing, seeding, and harvesting) are the main source of coins and XP. Plus, every time you level up you will earn 1 FV. We all know that with more FV you can buy cool decorations or buildings.
The key to leveling up fast is all in the choosing the best crops. Are you curious which seeds are the best ones to plant?
Here is a simple crop strategy guide for Farmville