00664cam a22002297a 4500003000500000005001700005008004100022010000900063011000900072035000900081040000900090082001500099100001700114245005300131260005600184300002900240490003400269650002300303650002600326710004800352830003400400CHAP20220817040843.0971013s1981            r     00010     d  a1514  a2486  a1680  cCHAP  a631.41bD600aDowdy, R. H. 0aChemistry in the soil environmentb: proceedings  aMadison, Wis :bAmerican Society of Agronomy,c1981  a259 p. ilus.b; gráfs. 0aASA special publicationv; 4014aSuelos y cultivos.14aSuelosxQuímica de.0 aAmerican Society of Agronomy. Madison, Wis.0 aASA special publicationv; 40