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James Harvey Pettit

3 cilt bulundu.

Cilt sonuçları

Beitra ge zur Bodenanalyse

Beitra ge zur Bodenanalyse

James Harvey Pettit · E.A. Huth

55 sayfa · 1909

Kategori yok

Laboratory Manual for Soil Fertility

Laboratory Manual for Soil Fertility

James Harvey Pettit, Cyril G. Hopkins · Read Books

66 sayfa · 2008

Kategori yok

SamplingCollecting and testing soil samplesCyril G. Hopkins, James Harvey Pettit

Collecting and testing soil samples

Cyril G. Hopkins, James Harvey Pettit · University of Illinois Agricultural Experiment Station

Sayfa sayısı yok · 1911

Soils / Testing / Sampling