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Science 1 November 1963:
Vol. 142. no. 3592, pp. 576 - 577
DOI: 10.1126/science.142.3592.576
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Articles

Strontium-90 Accumulation on Plant Foliage During Rainfall

Ronald G. Menzel 1, Howard Roberts Jr. 1, Ernest H. Stewart 2, and Arnold J. Mackenzie 3

1 Soils Laboratory, U. S. Agricultural Research Service, Beltsville, Maryland
2 Florida Agricultural Experiment Station and U. S. Agricultural Research Service, Fort Lauderdale, Florida
3 Southwestern Irrigation Field Station, U. S. Agricultural Research Service, Brawley, California

Accumulation of strontium-90 in field-grown crops was measured during the spring of 1962. Each rainfall markedly increased the strontium-90 content of the crops, except when the plants were very small. Accumulation between rains was comparatively small, about equal to the expected uptake from the soil.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)