Investigation of the principles of rapid soil tests for available potash and other plant nutrients of Virginia soils: III. selection, development and calibration of rapid chemical soil tests for available potassium, phosphorus, calcium and magnesium
Four rapid soil test extracting procedures for potassium, phosphorus, calcium and magnesium, and one absorption procedure for potassium and phosphorus were compared. The soils studied represented important agricultural soils in the Coastal Plains, Piedmont and the Limestone Valley areas of Virginia....
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| Format: | Others |
| Language: | en |
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Virginia Tech
2014
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| Online Access: | http://hdl.handle.net/10919/42737 http://scholar.lib.vt.edu/theses/available/etd-05192010-020030/ |