Hello, I just wanted to let you know that the carrot bag recipe only goes one way. YOu can craft the carrots into a bag, but the bag cannot be crafted back into carrots. There is also a recipe under the potato bag that creates carrots.

GameRegistry.addRecipe(new ItemStack(Items.WHEAT_SEEDS, 9, 0), "s", 's', wheat_seed_bag.copy());
GameRegistry.addRecipe(new ItemStack(Items.POTATO, 9, 0), "s", 's', potatoes_seed_bag.copy());
GameRegistry.addRecipe(new ItemStack(Items.CARROT, 9, 0), "s", 's', potatoes_seed_bag.copy());
GameRegistry.addRecipe(new ItemStack(Items.NETHER_WART, 9, 0), "s", 's', nether_wart_seed_bag.copy());
GameRegistry.addRecipe(new ItemStack(Items.DYE, 9, 15), "s", 's', boneMealBag);