The Interaction of Chloride with Sulfate and Phosphate in the Nutrition of Potato Plants (<i>Solanum tuberosum</i>)¹

Abstract

Synopsis A highly significant negative correlation existed between Cl in nutrient solution and the uptake of SO 4 in the tops of potato plants. Uptake of SO 4 by roots was significantly increased by additions of P 32 but not by S 35 or no radioisotope. Intermediate levels of Cl reduced the uptake of P 31 as compared with low and high levels of Cl. Chloride also affected maturity and dry weight relations of potato plants.