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In Aroostook County, Maine, where the annual average rainfall is 35-40 inches, it is generalized by many that moisture is not a limiting factor in potato production. Weather data for Aroostook do, however, show frequent periods of low rainfall during the growing season, and these periods do cause temporary moisture deficiencies in the crop. Struchtemeyer, based on irrigation research in Maine, showed that the potato plant needs approximately 1 inch of water per week during the growing season. From the 1936 to 1955 Maine Weather Records, Pullen and Schrumpf (23) found that about 70 percent of the time, less than 1 inch per week of rainfall can be expected. Thus the use of supplemental irrigation for high potato yields in Maine seems feasible.
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Maine Agricultural and Forest Experiment Station
Maine, Aroostook, potatoes, soil, fertilizers, moisture
Agriculture | Agronomy and Crop Sciences | Plant Biology
Kalra, Gurbachan Singh and Struchtemeyer, Roland A.. 1979. B753: The Uptake of Nutrients by Katahdin Potatoes as Influenced by Soil Moisture Regimes and Rates of Fertilization. Maine Agricultural and Forest Experiment Station Bulletins .