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An evaluation of sludge-acid and alkylation-acid superphosphates as sources of phosphorus in potato fertilizers

Field Studies in Maine, New Jersey, Pennsylvania, and Virginia

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Summary

Since uncontaminated sulphuric acid is in great demand for many war as well as peacetime materials, information on the value of spent sulphuric acid as a material for treating phosphate rock is desirable.

Two spent sulphuric acids that are available for this purpose are sludge acid from the refining of petroleum products and alkylation acid from the manufacture of so-called alkylation fluid for use in the production of high-octane gasoline. Superphosphates made from the three types of sulphuric acid—clear, sludge, and alkylation—were used as sources of phosphorus in potato fertilizers and compared in eight field tests in Maine, New Jersey, Pennsylvania, and Virginia. These various tests have indicated that fertilizers formulated with the spent-acid superphosphates are capable of producing as high yields of potatoes as superphosphate made with clear acid.

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Literature Cited

  1. Brown, B. E., Jacob, K. D., and Reid, F. R. 1942. Plant culture and nitrification studies with sludge-acid superphosphate. The American Fertilizer 96:7, 5–6, 24, 26.

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Author information

Authors and Affiliations

  1. Division of Fruit and Vegetable Crops and Diseases, Bureau of Plant Industry Station, Beltsville, Md.

    B. E. Brown

  2. Division of Soil and Fertilizer Investigations, Bureau of Plant Industry, USA

    J. C. Campbell & K. D. Jacob

  3. New Jersey Agricultural Experiment Station, New Brunswick, N. J.

    J. C. Campbell

  4. Maine Agricultural Experiment Station, Orono, Maine

    Arthur Hawkins

  5. Division of Soil and Fertilizer Investigations, Bureau of Plant Industry Station, Beltsville, Md.

    G. V. C. Houghland & K. D. Jacob

Authors
  1. B. E. Brown
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  2. J. C. Campbell
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  3. Arthur Hawkins
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  4. G. V. C. Houghland
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  5. K. D. Jacob
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Additional information

Conducted cooperatively by the Maine, New Jersey, and Pennsylvania Agricultural Experiment Stations; the Virginia Truck Experiment Station; and the Divisions of Fruit and Vegetable Crops and Diseases, and of Soil and Fertilizer Investigations, Bureau of Plant Industry, Agricultural Research Administration, U. S. Department of Agriculture.

The writers wish to acknowledge the helpful cooperation of Amos H. Fletcher, Aroostook County, Maine; Spencer Perrine, Middlesex County, and George Probasco, Monmouth County, N. J.; and Milton D. Leiby, Lehigh County, Pa.; who, besides furnishing land, looked after essential details, such as preparing the land, supplying teams, cultivating and spraying, and assisting at harvest time. Acknowledgment is also made of the helpful cooperation of A. L. Hacker, county agricultural agent of Lehigh County, Pennsylvania.

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Brown, B.E., Campbell, J.C., Hawkins, A. et al. An evaluation of sludge-acid and alkylation-acid superphosphates as sources of phosphorus in potato fertilizers. Am. J. Pot Res 20, 89–95 (1943). https://doi.org/10.1007/BF02889499

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  • DOI: https://doi.org/10.1007/BF02889499

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