Grains are cultivated and used for multiple purpose that include both human and animal consumption. Grains are very nutritious and can be used in many food products such as bread, beer and cereals. Grains can also be used as straw, no till nitrogen fixing crops, weed suppression and erosion prevention.
Raising grains such as wheat, spelt, oats, rice, buckwheat, barley, millet, and rye in your backyard does not require any special machinery, and you may be surprised at how little space it takes to grow a substantial supply of homegrown grains. A typical family uses about a bushel of wheat (60 pounds) a year, plus about 1/4 to 1/2 bushel of other grains. Given reasonably good conditions, you should be able to grow a bushel of wheat in a 20- by 50-foot plot (1,000 square feet).