Things needed:
JEI
1. Enable cheat mode in JEI
2. Clear your inventory
3. Grab the type of seedbag you need and put it into your inventory
4. Save your world
5. Open NBTExplorer
6. Open your save file in NBTExplorer
7. Find and open your playerdata file
8. Find Inventory and open the tag part. This is what you need for your command.
9. Plug the things into the command:
/give @p ic2:crop_seed_bag 1 0 {growth:x,gain:x,resistance:x,id:x,owner:ic2,scan:x}
In this case it is /give @p ic2:crop_seed_bag 1 0 {growth:1,gain:1,resistance:1,id:cyprium,owner:ic2,scan:4}. Of course you can change the stats.
By setting scan to 4 you won't need to scan it again.