Effects of Organic Fertilization on Bacterial Community and Maize Productivity in Dryland Red Soil

• Published in: Huanjing kexue Vol. 44; no. 12; p. 6965
• Main Authors: Lin, Ting-Ting, Zheng, Jie, Zhu, Guo-Fan, Luan, Lu, Yang, Ye-Yu-Ping, Liu, Jia, Xu, Qin-Song, Sun, Bo, Jiang, Yu-Ji
• Format: Journal Article
• Language: Chinese
• Published: China 08.12.2023
• Subjects: bacterial diversity; bacterial community structure; maize productivity; dryland red soil; pig manure
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.202301133

Since 2002, a long-term field experiment has been conducted to determine the effects of different organic fertilization treatments on the bacterial community characteristics and maize productivity in dryland red soil using high-throughput sequencing technology. The experiment consisted of four treatments:no manure, M0; low manure, M1; high manure, M2; and high manure with lime addition, M3. Our results showed that the different organic fertilization treatments(M1, M2, and M3) significantly promoted maize productivity with the highest values of pH, soil organic matter(SOM), total nitrogen(TN), and total phosphorus(TP) compared to that under the M0 treatment, and the high manure with lime addition(M3) treatment had the highest level of maize production. The different organic fertilization treatments significantly increased the Shannon index, Evenness index, Chao1 index, and ACE index and significantly shaped the composition of the bacterial community. TP and pH were the main variables determining soil bacterial