Summary
As the result of irrigation experiments conducted for three seasons, it was shown that the yield of potatoes was increased greatly by irrigation under the climatic conditions of Davis, in California. An application of 30 to 35 inches of water produced maximum yields. The nonirrigated potatoes produced a smaller percentage of No. is, were smaller in size, and usually had fewer knobs. The irrigated potatoes were usually of higher water content, had a smaller percentage of nitrogen, and exhibited large, whitish appearing lenticels.
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Data on number of applications and inches of water applied in irrigation treatments have been supplied by L. D. Donnen of the Division of Irrigation.
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MacGillivray, J.H. Effect of irrigation on the production of white potatoes. American Potato Journal 27, 10–23 (1950). https://doi.org/10.1007/BF02850105
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DOI: https://doi.org/10.1007/BF02850105