Title: Effect of Sulfur-Coated Urea on Growth and Nitrogen Use Efficiency of Rice
Abstract:Pot experiments were carried out to compare different effects of sulfur-coated urea(SCU) with urea on growth and nitrogen use efficiency(NUE) of rice.Results obtained were as follows:(1) SCU had signi...Pot experiments were carried out to compare different effects of sulfur-coated urea(SCU) with urea on growth and nitrogen use efficiency(NUE) of rice.Results obtained were as follows:(1) SCU had significantly positive effects on growth of rice at tillering stage,but with smaller increment compared to urea.At harvest stage,on condition of applying the same rates of fertilizer and N dosage,the grain yield of rice applied with SCU were 35.7% and 19.3% higher than those with urea,respectively.At the same nitrogen usage,treatment with SCU has higher thousand-grain weight while less effective spike number than those of urea;(2) NUE and partial factor productivity for applied N(PFP) of rice fed with SCU were higher than those with urea.At the same fertilizer dosage,NUE of SCU treatments were 47.35% to 57.48%,which were 12.5% higher than urea treatments on the average.PFP on SCU treated rice were increased by 10% than urea.At the same N dosage,NUE of SCU application treatments were 17.12% higher than those of urea,reaching 51.11%.Read More
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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Cited By Count: 3
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