Zynga, the creator of the world famous Facebook game FarmVille and now Farmville 2 adds new levels to the game, starting with Level 41. In addition to the new levels added, they also added the following crops.
- Barley, which requires Level 42
- Asparagus, which requires Level 45, and
- Soybean, which requires Level 50
To go from Level 41 to Level 42 requires earning 52,000 XP. I assume if you made it this far, you would know how to gain all those XPs quick.
If you have all those coins, you know what you need to do to trade coins for XP if you want to level up. The Hay Wagon, which costs 45,000 Coins and gives you 397 XP for each purchase. If you have 450,000 coins to spare, you can make a quick 4,000 XP.
Other than that, have fun, keep farming.