00427nam a2200145 a 450000100080000000500110000800800410001910000200006024501140008026000420019430000110023650000160024765000090026365300090027218415621995-12-18 1974 bl uuuu m 00u1 u #d1 aSAFFIGNA, P. G. aIrrigation and nitrogen management of potatoes to minimize nitrogen leaching losses in Plainfield loamy sand. a[S.l.]: University of Wisconsinc1974 a120 p. aThesis PhD. aSolo aTese