Crop farming basics, then an auto farm in Minecraft
Villages grow Wheat, Carrots, Potatoes and Beetroots.

A Beetroot is a red root vegetable harvested from beetroot crops.
It can be composted: each one has a 65% chance to add a layer to a Composter.
Plant Beetroot Seeds on farmland and harvest the grown crop for one beetroot and some seeds. A beetroot restores just 1 hunger point, but six make a filling Beetroot Soup, and one beetroot crafts a Red Dye. Pigs follow and breed with it.
This item has no crafting recipe.
Villages grow Wheat, Carrots, Potatoes and Beetroots.
Bread counts 4, a Carrot, Potato or Beetroot counts 1, so 3 Bread or 12 Carrots per villager.
Bought by Villager: Farmer (Novice).
It is a crop for soup, red dye and pig breeding. It is an ingredient in 2 recipes, made at the Crafting Table; for example Beetroot Soup and Red Dye. Animals that eat it: Pig.
1 hunger points (0.5 drumsticks) and 1.2 saturation.
Yes. Each Beetroot put in a Composter has a 65% chance to add a layer (the first layer in an empty Composter always works). After 7 layers the Composter gives Bone Meal.
A Balanced Diet (Eat everything that is edible, even if it's not good for you).