The Effects of Coated Urea on the Yields of Maize and Its Characters

The trial results of the different amounts of coated urea,the same amounts of nitrogen,the utilization rate of nitrogen showed that the efficiency of coated urea was 10.5～22.7 percent higher than that of the conventional urea,the output of maize improved 7.6～21.5 percent.There was little difference between 70 percent of the coated urea and conventional urea in yields.