http://pec.lib.wvu.edu/record/P169231943Winter injury to trunks of young bearing apple trees in West Virginia following a fall application of nitrate of soda. Journal article reprint from: <em>Proceedings of the American Society for Horticultural Science</em>, v.42 (1943). Marsh, R. S.Sudds, R. H.Apples--Fertilizers--West Virginia.14256