Analysis of factors influencing the degradation rate of neutral detergent fiber in whole-plant corn silage: Taking Zhengda 12 in Ningxia as an example

• REN Lijuan, 
• BU Dengpan, 
• WANG Jianping, 
• CHEN Yakun, 
• SHAN Liyan, 
• WANG Kun, 
• WANG Siwei, 
• ZHAO Liansheng