Results 1 to 2 of 2
- The effect of different colloidal soil materials on the efficiency of superphosphate / by Gile, P. L.(Philip Lindsey),1883-1972.(CARDINAL)314898;
Includes bibliographical references (pages 36-39).- Subjects: Superphosphates.; Soil colloids.;
- Available copies: 1 / Total copies: 1
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- Silica vs. ammonia : results of a comparative soil test of Popplein's silicated phosphate with peruvian guano, Merryman's ammoniated dissolved bone, Chappell's ammoniated superphosphate, pacific guano &c. / by Ledoux, Albert R.(Albert Reid),1852-1923(CARDINAL)266711; North Carolina Agricultural Experiment Station.(CARDINAL)164543;
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- Subjects: Phosphatic fertilizers.; Silica.; Ammonia as fertilizer.; Liquid fertilizers.;
- Available copies: 0 / Total copies: 1
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Results 1 to 2 of 2