Rotation Helps Control Tobacco Plant Diseases Plan to follow a definite rota tion in the tobacco field. S. B. Fenne, plant pathologist at VPI, says blackshank. rootknot. and in fact, all soil borne diseases are always much more severe if tobacco is grown in me same soil year after year. He cites some results of tests at the Chatham branch of VPI Agricultural Experiment Station, which point up the value of rota tions. There, researchers have found that a two-yeai rotation of tobacco wheat, and led top the first year, followed the second year by W'heat and red top, re sulted in a good yield of high quality tobacco. Rotations including a legume such as vetch or clovei usually in crease the pounds of tobacco and also the yield of coin which may follow, but unless caie is taken there is danger of producing Heavy, rough tobacco. If corn fol lows the legume it will remove I much of the nitrogeh in the soil and should result in high quality tobacco.

75.6%