Bioresource and Agricultural Engineering Commons^™

Comparison Of Drip And Sprinkler Irrigation Systems For Applying Metam Sodium And Managing Stem Rot On Potato, G. T. Browne, William R. Detar, Blake M. Sanden, Claude J. Phene

William R DeTar

Drip and sprinkler systems were compared for effectiveness as preplant metam sodium chemigation systems and conduciveness to late-season development of stem rot disease on potato. Sclerotia of Sclerotium rolfsii were used in a bioassay to test efficacy of metam sodium treatments. Drip application of metam sodium (532 liters/ha, 32.8% a.i.) through lines at 7 cm of depth in preformed beds (depths from bed top unless stated otherwise) killed all test sclerotia at 15-, 30-, or 46-cm depths. Drip application of the metam sodium through drip lines at 41 or 46 cm of depth resulted in 0 to 17 or 68 …