The Use of Urea and Sulfur-Coated Urea for Corn Production in a Tropical Soil
1975
Dalal, R. C.
Placement of applied N at surface and at the 5-cm depth at the rates of 50, 100, and 200 kg/ha of urea and sulfur-coated urea (SCU) were used to measure changes in grain yield and N uptake by corn (Zea mays L.) grown during the wet season in Trinidad. SCU performed better than urea. Surface applied SCU was more efficient than when placed at 5 cm depth. Urea placed at 5 cm depth was more efficient in corn production than when applied on the surface.
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