Cover crops bridge the gap of several different cropping systems and the possibilities and combinations can be endless. What you would like to receive from your crop is a significant determining factor in figuring out what species or mix to seed. Soil health factors include increased infiltration rate, soil biology, nutrient cycling and some legumes produce Nitrogen for later crops. Weed management might be the desired effect with ground shading many grass species provide. Grazing potential as an additional feed source for livestock and give other pastures some added time to recover. The environmental aspect of reducing soil loss during runoff events is an excellent benefit, whether it was the primary one or not.
Below are some resources to help you determine what cover crops fit your management goal.
The online version of this book free text $19