Show cover crops winter cover crops are of great economic importance to farmers in the south according to U S department part ment of agriculture agnono mists their land is not protected by the freezing and snow cover which help to prevent soil leaching in northern areas increased use of cover crops on cultivated land in southern states would prevent a great deal of fertility loss it is pointed out seed of many legume and non legume cover crops may be put in later than october in the extreme south |