Yazar
r h dowdy
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Cilt sonuçları
Chemistry in the soil environment
R. H. Dowdy, Matthias Stelly · American Society of Agronomy, Soil Science Society of America
259 sayfa · 1981
Soil chemistry / Congresses
Sewage sludge
C. E. Clapp, R. H. Dowdy, William E. Larson · American Society of Agronomy
258 sayfa · 1994
Congresses / Sewage sludge as fertilizer / Technology & Industrial Arts / Sewage Disposal And Treatment / Soil Fertilization