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| Effects of Form and Ratio of Nitrogen Element on Yield and Nutritional Ingredients of Silene conoidea L.（Noodles Greens） |
| MA Guang-shu, LIU Tao, LIAN Hua*, LIU Fang, WU Xia |
| College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China |
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Abstract In the experiment, Silene conoidea L.（Noodles greens）was used as experimental material, the way of substrate culture was adopted to study the effects of different forms and ratios of nitrogen element supply levels on the yield and nutritional ingredients of noodles greens. The results showed that the single plant output was higher, the nitrate content was safer, nitrate reductase activity was stronger, and contents of all nutritional ingredients were higher, when the concentration of nitrogen element was 3.2 mmol?L-1, and NO3-－N to NH4+－N ratio were 75∶25 and 50∶50. Thus, they are the most suitable ratios.
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Received: 20 December 2010
Published: 14 March 2011
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