A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far.
Cover crops usually are grown to prevent soil loss from wind and water erosion. Use fast-growing cover crops, such as winter wheat or annual rye, on fall-spaded gardens. A second, and probably more important reason home gardeners should use cover crops is to improve soil structure and increase organic matter.
Broadleaf Crops. There are many options for cover crops on the farm. The first option is to use a species in the grass family (oats, barley, wheat, sorghum, etc). The second option is to use a broadleaf crop (field pea, clovers, turnip, other brassica species, and others) and the third option is to use a crop mixture using different species.