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The influence of irrigation on the nitrogen, phosphorous and potash requirements of different potato varieties

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Summary

  1. 1.

    Three years’ results are reported for a 3N, 3P, 3K factorial fertilizer experiment with and without irrigation, in which 3 or 4 varieties of potatoes were grown each year.

  2. 2.

    Green Mountain variety was grown each year and the three years indicated a need for more than 120 lbs. of nitrogen, providing the phosphorous level is kept below 160 lbs. P2O5 and potash is at a low to medium level. Without irrigation about 2000 lbs. of a 6-4-2 seemed best, but with irrigation 2000 lbs. of a 66-4-4 appeared best.

  3. 3.

    Katahdin was grown two years. Without irrigation about 2000 lbs. of a 6-4-6 and with irrigation 2000 lbs. of a 6-4-2 were best.

  4. 4.

    Mohawk was tested two years. Without irrigation about 2000 lbs of a 6-8-6 and with irrigation 2000 lbs. of a 6-8-4 was best.

  5. 5.

    Sequoia in 1946 without irrigation did best on a ton of 4-4-6, but with irrigation a ton of 6-12-6 was best.

  6. 6.

    Ontario in 1947 without irrigation needed a ton of 6-12-2 and with irrigation a ton of 4-12-2.

  7. 7.

    Cobblers in 1948 without irrigation needed a ton of 6-4-6 and with irrigation a ton of 6-8-6.

  8. 8.

    Results indicated a need for changes in the levels of the N, P, and K factors for the future conduct of this experiment.

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Literature Cited

  1. Jacob, Walter C. Latin square half plaids for irrigation experiments. In press.

  2. Kemp, W. B. 1938. Separating a generalized interaction into components. Jour. Amer. Soc. of Agr. 30: 419–424.

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  3. Wessels, P. H. 1941. Fertilizer distributor for factorial design experiments. Jour. Amer. Soc. of Agr. 33: 259–262.

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Author information

Authors and Affiliations

  1. Cornell University, Agricultural Experiment Station, Ithaca, N. Y.

    W. C. Jacob, R. H. White-Stevens & P. H. Wessels

Authors
  1. W. C. Jacob
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  2. R. H. White-Stevens
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  3. P. H. Wessels
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Additional information

Paper No. 314 Department of Veg. Crops, Cornell University, Ithaca, N. Y.

Assoc. Prof., formerly Assist. Prof, and Emeritus Prof, of Veg. Crops respectively at L. I. Veg. Research Farm, Riverhead, N. Y.

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Jacob, W.C., White-Stevens, R.H. & Wessels, P.H. The influence of irrigation on the nitrogen, phosphorous and potash requirements of different potato varieties. American Potato Journal 26, 241–255 (1949). https://doi.org/10.1007/BF02883859

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  • DOI: https://doi.org/10.1007/BF02883859

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