TY - BK AU - Freitag,A.W. AU - Stegman,E.C. TI - Semi-automated water balance scheduling for center pivots [Microcomputer based irrigation system] T2 - ASAE Paper U1 - 85-063116 PY - 1982/// KW - Drainage and irrigation KW - Machinery and equipment other N1 - ill. Includes references. Paper presented at the 1982 Winter Meeting of the American Society of Agricultural Engineers. Available for purchase from: The American Society of Agricultural Engineers, Order Dept., 2950 Niles Road, St. Joseph, Michigan 49085. Telephone the Order Dept. at (616) 429-0300 for information and prices ER -