Effects of increased N O-3-N application on PSⅡ function in leaves of Morus alba seedlings under Na2CO3 stress

• Nan Xu, 
• Hui-hui Zhang, 
• Si-yu Gu, 
• Xin Li, 
• Yu-wei Zhu, 
• Yan Yang, 
• Kun Liu, 
• Xiu-li Zhang