Role of Nitrogen and Phosphorus Fertilizer on Seedling Production of Panax notoginseng

• ZHENG Jianfen, 
• YIN Zhaobo, 
• ZHAO Zhi, 
• MAO Zhongshun, 
• WEI Wei, 
• WEI Fugang, 
• CHEN Zhongjian, 
• HE Xiahong, 
• ZHU Shusheng