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This article in AJ

  1. Vol. 59 No. 1, p. 70-72
     
    Received: July 2, 1966
    Published: Jan, 1967


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doi:10.2134/agronj1967.00021962005900010021x

Effect of Placement Depth and Root-Inhibiting Chemicals on Uptake of Strontium-85 by Field Crops1

  1. R. G. Menzel,
  2. H. V. Eck and
  3. D. F. Champion2

abstract

abstract

Uptake of strontium-85 was sharply reduced by burying it deeply enough in the soil or by burying it in contact with chemicals that inhibited root development in the contaminated zone. With soybeans grown at Beltsville, Md., uptake of strontium-85 from 75 cm below the soil surface was only 1% of that from the surface 15 cm. But with sorghum grown at Bushland, Texas, uptake from 100 cm was 40% of that from the surface 15 cm. Application of sodium carbonate with strontium-85 at 50 cm reduced uptake by both crops to only a few percent of that from the same depth when no chemical was used.

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