Will fall-planted winter rye be sufficient or is another nitrogen source needed?

Question: Per our garden soil sample results, we are to apply a nitrogen source this spring. We will be digging in the fall-planted winter rye as soon as able. Will that suffice or is another nitrogen source needed? If so is there a preference? Answer: Lynne M. Holland, Community Education Assistant, Androscoggin-Sagadahoc Counties Although cover read more Will fall-planted winter rye be sufficient or is another nitrogen source needed?