Red clover, the old standby rotation legume of our fathers and grandfathers, was shoved back a few years ago by newer and seemingly more promising legumes.
Hughes, H. D. and Wilsie, C. P.
"Iowa Needs Red Clover,"
Farm Science Reporter: Vol. 4
, Article 2.
Available at: https://lib.dr.iastate.edu/farmsciencereporter/vol4/iss3/2