Effect of source of potash in the fertilizer on yield and starch content of potatoes

Experiments on the effect of source of potash in the fertilizer for potatoes were conducted in Aroostook County, Maine, over the period of 1930–1944 and 1947–1948. As an average for all experiments muriate, or chloride, and sulfate of potash resulted in practically the same yield of tubers. In certain experiments and years the sulfate resulted in slightly… (More)