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Synopsis Response of flax and sorghum to zinc fertilization increased as the liming rate was increased from 2 to 6 tons of CaCO3 per 2 million pounds of Hartsells soil. Phosphorus fertilization did not affect zinc response. Best growth was obtained when the Ca/Mg ratio of the liming material as 2/1.

Two experiments were conducted in the greenhouse to compare the effects of chloride, sulfate, and carbonate salts on the yield and chemical composition of corn and tomato plants. Rates of these anions went as high as 25.32‐pound‐equivalents per 2 million pounds of soil. In the first experiment the chloride series yielded less corn than the other series. A differential moisture regime also resulted in a significant difference in corn yield in favor of the more moist condition. A succeeding crop of tomatoes did not grow properly even though well fertilized with phosphorus. It is postulated that high acidity may be a contributing factor in causing an apparent phosphorus deficiency in tomato plants. In a second experiment with tomatoes the yield data showed highly significant anion source, phosphorus rate, lime rate, and anion × lime and anion × rate of anion effects. At the highest rate of chloride the yield was less than at the other rates. A highly significant yield increase was found for liming and phosphorus fertilization. Chemical composition of the plant material reflected the effect of rates of chloride on the percent chlorine in the plant and the rates of sulfate on the percent sulfur. A significant effect of increasing the rate of chloride or sulfate on the phosphorus content of the plants was found.

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Snap beans were fertilized with 4 levels of Mg at each of 2 levels of K, and with Mn, Cu, Zn, and a micronutrient mixture at a single K level. Bean yields were not affected by any of the treatments. Top leaves, bottom leaves, and leaf petioles were taken for chemical analysis when the beans were in the early bloom stage of growth. Mg content of the bottom leaves was higher than that of the top leaves and petioles. Mg content increased with Mg applied and was higher at low K than at the high K level. Ca was also higher in the bottom leaves than in the top leaves or petioles. K content was higher in petioles than in leaves, and was higher at high K than at the low K level. No Mg effect was apparent. Mg content of petioles increased regularly with Zn < Mn < Cu < Mixture treatments. Zn, Mn, and Cu increased the Ca content of the bottom leaves. Zn reduced the K content of the bottom leaves. Bottom leaves contained a higher content of cations followed by petioles and top leaves.

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