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OLS Field Name OLS Field Data
Main Title Assessing the Impacts of Soil Moisture Stress on Regional Soybean Yield and Its Sensitivity to Ozone (Journal Version).
Author King, D. A. ; Nelson, W. L. ;
CORP Author Portland Univ., OR. Dept. of Physical and Life Sciences. ;Doane Publishing, St. Louis, MO.;Corvallis Environmental Research Lab., OR.
Publisher c1987
Year Published 1987
Report Number EPA/600/J-87/469;
Stock Number PB89-144430
Additional Subjects Ozone ; Stress(Physiology) ; Droughts ; Soybean plants ; Plant physiology ; Sensitivity ; Regional analysis ; Soil water ; Oxygen ; Forecasting ; Mathematical models ; Yield ; Reprints ; Air pollution effects(Plants) ; Glycine max
Library Call Number Additional Info Location Last
NTIS  PB89-144430 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/08/1989
Collation 16p
Abstract Plants that experience moisture stress show less ozone-caused injury than non-stressed plants exposed to similar levels of ozone. To evaluate the interaction of moisture stress and ozone for soybean grown in the U.S.A., relative yields were simulated with a model to compute a general relationship between moisture stress effects on yield and crop sensitivity to ozone. In 1980 a 25% reduction in ozone would have increased mean yield by 6.0% for adequately watered soybeans, but only a 4.6% increase was predicted when moisture stress was included. This shift represents a 23% decline in sensitivity to ozone caused by moisture stress. The mean predicted ozone impact on soybean yield for 1979-1983 was reduced 19% by moisture stress. These predictions agree with drought-induced reductions in ozone sensitivity observed in pot-grown soybeans, but results from field experiments involving moisture stress are less certain.
Supplementary Notes Pub. in Agriculture, Ecosystems and Environment 20 p23-35 1987. Prepared in cooperation with Doane Publishing, St. Louis, MO. Sponsored by Corvallis Environmental Research Lab., OR.
NTIS Title Notes Journal article.
Title Annotations Reprint: Assessing the Impacts of Soil Moisture Stress on Regional Soybean Yield and Its Sensitivity to Ozone (Journal Version).
Category Codes 98D; 98A; 57C; 68A
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 908927601
Origin NTIS
Type CAT