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Investigation of alleged air pollution effects on yield of soybeans in the vicinity of the Shawnee Steam Plant

Book ·
OSTI ID:6474619
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Following air pollution injury to the foliage of soybeans and other vegetation growing in the vicinity of the Shawnee Steam Plant in July 1971, the Tennessee Valley Authority (TVA), in cooperation with the Environmental Protection Agency (EPA), the Kentucky Agricultural Extension Service, and a number of farmers whose fields were affected, undertook an investigation to determine whether the injury would adversely affect soybean production. Two types of air pollution effects were detected on the foliage of soybean plants - intercostal necrosis and chlorosis - both symptoms of injury sometimes caused by sulfur dioxide (SO/sub 2/). Soon after the injury occurred, necrosis, chlorosis, disease, and insect injury were estimated for 62 injured fields, totaling 1300 acres. The SO/sub 2/ injury occurred at an early stage in the development of the soybean plants, before they bloomed when they were about 18 in. tall. The plants increased considerably in size and appeared to have fully recovered by the time they reached full growth, which reduced the probability of any permanent effect on their productivity. Foliar SO/sub 2/-injury had no detectable effect on soybean production. Production was limited by low soil fertility and pH, soybean cyst nematode infestation, and cultural practices and possibly by other factors that were not considered in the investigation. Maximum yields will not be attained in most fields unless steps are taken to correct these conditions.
OSTI ID:
6474619
Country of Publication:
United States
Language:
English

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Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL EFFECTS
CHALCOGENIDES
CROPS
FOSSIL-FUEL POWER PLANTS
GLYCINE HISPIDA
GROWTH
INJURIES
LEAVES
LEGUMINOSAE
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLLUTION
POWER PLANTS
PRODUCTIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TENNESSEE VALLEY AUTHORITY
THERMAL POWER PLANTS
US ORGANIZATIONS