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Soil microorganisms play an important role in agricultural ecosystems, but their response to organic fertilizer application has not been thoroughly elucidated. Thus, high-throughput sequencing was used to investigate the responses of soil bacterial to organic fertilizer amendment (composted from pig manure) in the field during the entire growth cycle of maize plants. Four treatments were studied: treatment with 2 kg·m−2 organic fertilizer application (OF_2), treatment with 4 kg·m−2 organic fertilizer application (OF_4), treatment with 6 kg·m−2 organic fertilizer application (OF_6), and a controlled treatment (CK) without fertilization. The results revealed that the bacterial richness in OF_2 was significantly lower than that of CK (p < 0.05). Soil eutrophication bacteria Bacteroidetes increased effectively in all fertilized soils, relative abundance in OF_2, OF_4, and OF_6 for the entire maize growth cycle was 68.00%, 71.40%, and 77.93% higher than that in CK, respectively. In addition, soil nitrobacteria (Nitrospirae, Nitrospira), were markedly decreased (p < 0.05) with fertilization amount. The relative abundance of the nitrogen-fixing genus Adhaeribacter in OF_6 was 209.28%, 72.8% and 35.66% higher than that in CK, OF_2 and OF_4 at mature stage. The pathogenic genus Flavolibacterium was significantly increased (p < 0.05) in fertilized soil at the seeding stage. The driving factor governing the variations of bacterial community in CK, OF_2, OF_4 and OF_6 were pH value, available phosphorus, available phosphorus, and chromium, respectively. The findings highlight that part of the soil functional or pathogenic bacteria population was susceptible to organic fertilizer application; and the driving factor of bacterial composition change was associated with the rate of fertilization. More targeted experiments are needed to enhance the understanding of functional bacteria and the synergistic effect of soil physicochemical property physical on soil bacteria.
Jianqiang Wu; Chenyan Sha; Min Wang; Chunmei Ye; Peng Li; Shenfa Huang. Effect of Organic Fertilizer on Soil Bacteria in Maize Fields. Land 2021, 10, 328 .
AMA StyleJianqiang Wu, Chenyan Sha, Min Wang, Chunmei Ye, Peng Li, Shenfa Huang. Effect of Organic Fertilizer on Soil Bacteria in Maize Fields. Land. 2021; 10 (3):328.
Chicago/Turabian StyleJianqiang Wu; Chenyan Sha; Min Wang; Chunmei Ye; Peng Li; Shenfa Huang. 2021. "Effect of Organic Fertilizer on Soil Bacteria in Maize Fields." Land 10, no. 3: 328.
The application of animal manure is highly recommended in agricultural production. However, the effect of different kinds of manures on bacterial community in farmland still remains unclear. In this study, a short-term field experiment was conducted to investigate the rapid effects of pig manure (PM), chicken manure (CM) and organic fertilizer (OF, composted by pig manure) application on soil physicochemical properties and soil bacterial community. The results showed that the application of CM and OF significantly increased soil bacterial richness (p<0.05), mainly correlated with the increase of soil total nitrogen. Compared with CM and PM, OF had the greatest disturbance to soil bacterial structure. And total phosphorus showed the highest correlation with bacterial community. Meanwhile, the application of OF reduced the relative abundance of Actinobacteria, the organic matter synthetic bacteria, and Nitrospirae, the nitrifying bacteria, by 17.18% and 40.00%, respectively. 16S functional prediction analysis results shows that the application of OF increased the relative abundance of genes encoding Ribulose-1,5-bisphosphate carboxylase/oxyg (RuBsiCO), the genes involved in soil Calvin cycling, by 20.51%, and increased the relative abundance of genes encoding nitrous-oxide reductase by 44.86%. In conclusion, Short-term application of OF had greater disturbance to soil bacteria than CM and PM, and it had a significant influence on soil functional bacteria and genes involved in soil carbon and nitrogen cycling.
Chunmei Ye; Shenfa Huang; Chenyan Sha; Jianqiang Wu; Changzheng Cui; Jinghua Su; Junjie Ruan; Juan Tan; Hao Tang; Jiajia Xue. Changes of bacterial community in arable soil after short-term application of fresh manures and organic fertilizer. Environmental Technology 2020, 1 -11.
AMA StyleChunmei Ye, Shenfa Huang, Chenyan Sha, Jianqiang Wu, Changzheng Cui, Jinghua Su, Junjie Ruan, Juan Tan, Hao Tang, Jiajia Xue. Changes of bacterial community in arable soil after short-term application of fresh manures and organic fertilizer. Environmental Technology. 2020; ():1-11.
Chicago/Turabian StyleChunmei Ye; Shenfa Huang; Chenyan Sha; Jianqiang Wu; Changzheng Cui; Jinghua Su; Junjie Ruan; Juan Tan; Hao Tang; Jiajia Xue. 2020. "Changes of bacterial community in arable soil after short-term application of fresh manures and organic fertilizer." Environmental Technology , no. : 1-11.