Increasing the supply of N and P led to an increase in the nutrient uptake by the two rice varieties. The favourable effect of N on nutrient uptake was attributed to increased dry matter production while that of P was attributed to both increased concentration of the nutrients and increased dry' matter production. Swamp rice variety BG 79 absorbed more nutrients than upland rice variety Agbede, the superiority of the former over the latter variety being due to higher nutrient concentration and greater dry matter production. Flooded plant of the swamp rice variety BG 79, absorbed more nutrients than 'dry' soil plants of the same variety.

Sixteen barley varieties were employed in a study of intraspecific differences in Ca and Sr accumulation. The effect of Ca/St ratio, pH, and various Sr-89 concentrations and durations of feeding on variety differences were evaluated. Significant differences were observed for Ca and Sr accumulation among varieties of barley seedlings grown in nutrient solution. Varieties high in Sr accumulation also were high in Ca accumulation. Two-fold differences in accumulation were observed for both Ca and Sr-89. The ratio of Ca to Sr in the nutrient solution had little affect on variety differences in accumulation of Ca or St. However, there was evidence that varieties differed in ratio of Ca to Sr accumulated in the shoots. The pH of the solution did not affect total Sr-89 accumulation or variety differences. Both concentration and duration of feeding had a marked effect on total Sr-89 accumulation, but no effect on variety differences.

Clay dusts containing 2,4-D or 2,4-dibromophenoxyacetic acid with a complex of micronutrients, or 2,4-D alone in some instances, were applied to the foliage of varieties of the common bean (Phaseolus vulgaris) and to sugar beet (Beta saccharifera) seedlings. Treatment of the bean plants when 14 days old with dusts containing 0.1% 2,4-D with minerals, at 12 pounds per acre resulted in significant (P = .05) increases in growth (11.6% to 13.9%), in yield of pods (23% to 40%), and in production of seed (16% to 20%). KBr in the hormone-nutrient dusts further increased the yield of seed. Dusts containing 0.5, 1.0, or 2.5% 2,4-D, applied at 6 or 12 pounds per acre, repetition of application of all dusts, or application to bean plants older than 2 weeks were either nonadvantageous or depressed yield. The largest increase in root production by sugar beet plants, 44%, was obtained by the application of a composite dust containing 0.1% 2,4-D to the foliage of 1-month-old seedlings. The incorporation of microelements with the 2,4-D augmented the stimulatory action of the hormone and widened the concentration range of 2,4-D which could be applied to the plants to increase yield.