Suggested Topics within your search.
Suggested Topics within your search.
- Analysis 1
- Fertilizers 1
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Soils of the United States : based upon the work of the Bureau of Soils to January 1, 1908 /
Published 1909“…Bulletin / United States / Bureau of Soils…”
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2
<<A>> Study of crop yields and soil composition in relation to soil productivity.
Published 1909“…Bulletin / United States / Bureau of Soils…”
Book -
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<<The>> composition of commercial fertilizers /
Published 1910“…Bulletin / United States / Bureau of Soils…”
Book -
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Fertilizers on soils used for oats, hay and miscellaneous crops.
Published 1910“…Bulletin / United States / Bureau of Soils…”
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Descriptions of soil types established and changes in classification since.
Published 1911“…Bulletin / United States / Bureau of Soils…”
Book