00345nam a2200121Ia 4500008004100000082002600041100001600067245006500083260003000148300001200178600001500190650001800205140224s9999    xx            000 0 und d  a631.42+581.81:543.08   aWalsh, L.M.  aInstrumental methods for analysis of soils and plant tissue.  aUSAbSoil Science Society  av,222p.  a L.M.Walsh  aSoil analysis