Results
Found 489 works matching this query
The Alchemy of Air
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Enriching the Earth
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Response of Douglas-fir seedlings to nitrogen, sulfur, and phosphorus fertilizers
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Lactic Acid Fermentation of Human Excreta for Agricultural Application
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The European nitrogen assessment
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The World's Greatest Fix
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Diagnosis of the Nitrogen Status in Crops
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1948 Fertilizer Supplies
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The potassium-nitrogen partnership
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County-level estimates of nitrogen and phosphorus fertilizer use in the United States, 1945 to 1985
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