Large-scale field investigation of the effect of SO/sub 2/ exposure on yield of soybeans

Conference · Mon Jan 01 04:00:00 EST 1973 · Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States)

OSTI ID:5319677

Jones, H C; Cunningham, J R; McLaughlin, S B; Lee, N T; Ray, S

Total leaf areas exhibiting intercostal necrosis, chlorosis, or both, typical of SO/sub 2/ effects, were estimated for 8 varieties of exposed soybeans in 72 fields totaling 1342 acres. The exposure occurred at a relatively early stage in the development of the soybean plants, before full bloom when they were about 18 in. tall. The plants subsequently increased considerably in size and appeared to attain normal full growth. Data for yield, edaphic factors, and cultural practices used by the farmers were obtained for 110 fields totaling 2000 acres. Analyses of soils showed that most of the fields were low in phosphorus, potassium and pH and were infested by the soybean cyst nematode. Analysis of variance indicated that there was no significant difference in mean yields of affected and unaffected fields when comparisons were made either within each variety or for all varieties. Necrosis and chlorosis were not significant in explaining variation in yields. Reduced yields were associated with low soil fertility and pH, infestation with soybean cyst nematode, continuous cropping of soybeans, and late planting. The investigators concluded that there was no detectable effect of the SO/sub 2/ exposure on soybean production. 17 references, 1 figure, 6 tables.

• Research Organization: Tennessee Valley Authority, Muscle Shoals, AL
• OSTI ID: 5319677
• Report Number(s): CONF-730612-
• Conference Information: Journal Name: Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ASCHELMINTHES
BIOLOGICAL EFFECTS
CHALCOGENIDES
CULTIVATION TECHNIQUES
GLYCINE HISPIDA
HELMINTHS
LEGUMINOSAE
NEMATODES
NUTRIENTS
OXIDES
OXYGEN COMPOUNDS
PARASITES
PH VALUE
PLANTS
PRODUCTIVITY
RESPONSE MODIFYING FACTORS
SOILS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
VARIATIONS