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.
The type of crops and the crop suitability has allways a correlation. The existing crop studies and the surrounding vegetation can teach you what sort of crops can be grown under this situation. Light soils shallow rooted field crops. Deep black soil deep rooted field crops of 180 days duration like cotton arhar.