2008•Journal of Changjiang VegetablesRequires access
Effect of Different Fertilization Structure on Nutritional Quality and Sulfate Nitrate of Tomato
Junchao Wang
Open publisher page 0 citations
Abstract
The effect of different fertilization structure on nutritional quality and sulfate nitrate of tomato was deeply studied in the trial. The results showed that the content of vitamin C, soluble sugar, ratio of sugar and acid was higher than the others in the treatment of organic fertilizer+ammonium sulfate+superphosphate+potassium sulfate. Average value of sulfate nitrate content were respectively 174 mg/kg and 167 mg/kg for treatment of organic fertilizer+urea+superphosphate+potassium sulfate and organic fertilizer+ammonium sulfate+superphosphate+potassium sulfate, and there was no significant difference between the two treatments. But as nitrogen source, nitrate nitrogen content of ammonium sulfate treatment was less than that of urea treatment, the nitrate reducing enzyme activity was the highest in the treatment of organic fertilizer+ammonium sulfate+superphosphate+potassium sulfate. Therefore, the treatment of organic fertilizer+ammonium sulfate+superphosphate+potassium sulfate was the best structure for fertilization.