00751nam2a22001937a 4500001001500000005001500015008004100030040001900071049001600090052001800106082001100124100004800135245017400183260002700357300003600384502006700420653004300487900002700530WDM000002467  20201019144543940118s1972    us a          000d  eng    a011001c0110010 lWM95625fDP02a581.13bS556u0 a581.131 a심경구,g沈慶久,d1941-0KAC20162388711a(The)Utilization of post-harvest urea sprays/dby senescing apple leaves, changes in urease activity, and the effect of urea sprays upon subsequent yield/dkyung-Ku Shim  aUrbana:b[s.n.],c1972  avi, 57 leaves.:billus.;c28 cm1 aThesis(Ph.D.) --bUniv. of Illinois at Urbana-Champaign,d1972  aUTILIZATIONaPOSTHARVESTaUREAaSPRAYS10aShim, Kyung-Ku,d1941-