AbstractAn experiment with increasing applications of potash, with, and without lime in one instance, on cigar-filler tobacco on a Mabí clay at the Gurabo Substation gave results as follows: 1. There were increased yields of tobacco as the rate of potash fertilizer application increased. The use of 300 pounds per acre of K2O gave a significant increase over the no-potash treatment, but 100 and 200 pounds of K2O per acre failed to do so. 2. The use of 2 tons of lime plus 200 pounds of K2O per acre produced significant increases in yields of cured tobacco over the no-potash treatment, but did not when compared to the 200 pounds of K2O per treatment. 3. The quality of the tobacco, as measured by price received per pound of cured tobacco, was highest for the treatment with 200 pounds of K2O per acre. 4. Considering the cash return received by the farmer for his cured tobacco, after deduction of fertilizer costs, the use of 2 tons of lime and 200 pounds of K2O per acre appeared to be the most profitable treatment. 5. Cigars made with tobacco from the various potash treatments displayed no significant differences in quality factors affecting smoker acceptability.
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