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Katahdin potatoes were grown in the greenhouse in 2-gallon, crocks containing a virgin Caribou loam soil. Factorially combined levels of S and Mg, each at an equivalent rate of 0, 10, 20, and 30 pounds per acre, were imposed as treatments for the first five of seven crops. The sixth and seventh crops of potatoes were grown primarily to further deplete the soil of S and Mg and to enhance or accentuate plant deficiency symptoms which occurred quite intensively during growth of the fifth crop of potatoes. The objective was to evaluate effects of factorially combined levels of sulfur and magnesium on the growth, quality, and chemical composition of the white potato.
Maine Agricultural Experiment Station
Agronomy and Crop Sciences
Gausman H.W., and G.O. Estes. 1963. Effects of factorially combined levels of sulfur and magnesium on potato plants (Solanum tuberosum). Maine Agricultural Experiment Station Technical Bulletin 5.