Responses of cotton to sulfur fertilization
1945
Harris, H.C. | Bledsoe, R.W. | Calhoun, P.W.
The results for cotton on three soil types in two widely separated parts of Florida indicate that sulfur was deficient for the growth of the crop. The fact that the two locations are about 100 miles apart suggests that there might be large areas in this state where sulfur is deficient. The idea becomes more plausible when it is considered that Florida has sandy soils which are easily leachable, a high rainfall, and lacks large industrial areas. While these results were obtained for cotton, it is entirely possible that other agronomic, vegetable, and citrus crops may respond nutritionally to sulfur when applied either in the fertilizer, dusting, or spray program. Furthermore, in plant nutritional experiments on these soils involving such materials as superphosphate, magnesium, copper, zinc, and manganese sulfate, the effect of the sulfate will have to be clearly differentiated from that of the other elements present. The results indicate that sulfur nutrition merits greater consideration.
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