00509     2200157   4500001002100000008004100021035002000062245009700082100001800179260002400197300005100221520001700272082001100289650003600300990001500336INLIS000000000002741                                   Ind    a0010-1118002741  aChemical characteristics of continously cropped soils and how to improve themcJUNG-HUI YOON  aJung-Hui Yoon  aTaipeibASPACc1989  a8 p. : ill. ; 26 cm.--c8 p. : ill. ; 26 cm.--  aBibl. p. 7-8  a631.41  aSOIL CHEMICOPHYSICAL PROPERTIES  a1231/MS/91