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Effect of sulfur on winter wheat grown in the coastal plain of Virginia

Journal Article · · Commun. Soil Sci. Plant Anal.; (United States)
Three experiments were conducted in the Coastal Plain region of Virginia on Kenansville loamy sand, Dothan loamy sand, and Pactolus loamy sand soils. These three soils have low monocalcium phosphate-acetic acid extractable SO/sub 4/-S (<3.1 kg/ha) and would be expected to be S deficient with respect to corn (Zea mays L.) Winter wheat response to S application was investigated on the Kenansville and Dothan soils, while the N x S interaction was studies on the Pactolus soil. Yields were not significantly influenced by S application and averaged 5.6 Mg/ha for the Kenansville and 4.3 Mg/ha for the Dothan soils. In the N x S interaction study, yield increased linearly with increased N application, and N and P tissue concentrations were increased with N application. These data indicate that S concentrations of 0.20% and a N/S ratio of 18 in the flag leaf at Feekes growth stage 10 is sufficient for high yields. The absence of S deficiency in these relatively high-yielding experiments on coarse textured soils with a low levels of extractable SO/sub 4/-S may be related to atmospheric accretions during much of the wheat growing season.
Research Organization:
Virginia Polytechnic Institute and State Univ., Blacksburg
OSTI ID:
7163890
Journal Information:
Commun. Soil Sci. Plant Anal.; (United States), Journal Name: Commun. Soil Sci. Plant Anal.; (United States) Vol. 17:2; ISSN CSOSA
Country of Publication:
United States
Language:
English