Frederick Charles Bauer grāmatas
Summary of Illinois Soil Investigations
Frederick Charles Bauer, Cyril George Hopkins, Jeremiah George Mosier
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Summary of Illinois Soil Investigations
Frederick Charles Bauer, Cyril George Hopkins, Jeremiah George Mosier
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The Effect Of Leaching On The Availability Of Rock Phosphate To Corn [i.]: Ii. The Relation Of Organic Matter And The Feeding Power Of Plants To The Utilization Of Rock Phosphate
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