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Flue Gas Desulfurization Products as Sulfur Sources for Corn

Source Publication:Soil Science Society of America Journal Vol. 72 No. 5, p. 1464-1470
Primary Author:Chen, Kost, Dick
State:Ohio
Date/Year:2008
Focus:N fertilization, corn yield, soil fertility
Category:Peer Reviewed Papers
Crop:Corn
Reported Results:

Average corn yields were increased by S application in 2002 and 2003. An interaction of N × S for corn yields was observed in 2005, and there was a strong tendency for an interaction in 2004. Sulfur application at 33 kg ha−1 significantly (P ≤ 0.05) increased corn yield at the intermediate N rate of 133 kg ha−1, and showed a general tendency to increase yield at lower N rates in 2004 and 2005. This suggests that less N fertilizer can be used by addition of S, and the S addition has the potential to both improve profitability and reduce NO3contamination of water due to excess N fertilizer use. Application to soil of N with S may also increase concentrations of N and S in corn grain.

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