00401nam a2200121Ia 4500008004100000082002200041100002700063245004600090260002900136300001200165600002100177650008100198140224s9999 xx 000 0 und d a631.41:631.811 L5 aChapman, Homer D., ed. aDiagnostic criteria for plants and soils. aNew DelhibEurasiac1975 av.793p. aHomer D. Chapman aDiagnosis-Statistical methods,Plants-Nutrition,Soil Fertility,Soil Chemistry