ffect of Soybean and Maize Rotation on Soil Microbial Community Structure

Examining the soil microbiome structure has a great significance in exploring the mechanism behind plant growth changes due to maize (Zea mays L.) and soybean (Glycine max Merr.) crop rotation. This study explored the effects of soil microbial community structure after soybean and maize crop rotation by designing nine treatments combining three crop rotations (continuous cropping maize or soybean; and maize after soybean) with three fertility treatments (organic compound fertilizer, chemical fertilizer, or without fertilizer). Soil was sampled to 30 cm depth the second year at approximately the middle of the growing season, and was analyzed for physical, chemical, and phospholipid fatty acid (PLFA) profiles. Bacteria was found to be the predominant component of soil microorganisms, which mainly contain the PLFAs i15:0, 16:1 ω 7c, 16:0, 10Me16:0, and 18:1 ω 7c. The concentration of soil gram-negative bacteria from the soybean and maize rotation was less than in soybean continuous cropping when organic fertilizer was applied to both. Crop rotation reduced the percentage of fungi in the soil, among which the effect of organic compound fertilizer application was significantly reduced 24%. The combined crop rotation with organic fertilizer can reduce maximum the percentage of fungi/bacteria. In addition, the content of soil aggregate and organic matter had great influence on gram-positive bacteria and actinomyces, and soil pH had a greater impact on other fungi.

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Effect of Soybean and Maize Rotation on Soil Microbial Community Structure

Agronomy ◽

10.3390/agronomy9020042 ◽

2019 ◽

Vol 9 (2) ◽

pp. 42 ◽

Cited By ~ 4

Author(s):

Peng Zhang ◽

Jiying Sun ◽

Lijun Li ◽

Xinxin Wang ◽

Xiaoting Li ◽

...

Keyword(s):

Community Structure ◽

Microbial Community ◽

Organic Compound ◽

Crop Rotation ◽

Fertilizer Application ◽

Maize Crop ◽

Soil Microbial Community Structure ◽

Soil Microbial ◽

Gram Positive Bacteria ◽

Compound Fertilizer

Examining the soil microbiome structure has great significance in terms of exploring the mechanism behind plant growth changes due to maize (Zea mays L.) and soybean (Glycine max Merr.) crop rotation. This study explored the effects of soil microbial community structure after soybean and maize crop rotation by designing nine treatments combining three crop rotations (continuous cropping maize or soybean; and maize after soybean) with three fertility treatments (organic compound fertilizer, chemical fertilizer, or without fertilizer). Soil was sampled to 30 cm depth the second year at approximately the middle of the growing season, and was analyzed for physical, chemical, and phospholipid fatty acid (PLFA) profiles. Bacteria was found to be the predominant component of soil microorganisms, which mainly contained the PLFAs 16:0. Crop rotation with organic compound fertilizer application reduced the percentage of fungi in the soil by 24% compared to continuous maize and soybean with the same fertilizer application. The combination of crop rotation with organic fertilizer can reduce the percentage of fungi/bacteria to the greatest degree. In addition, the content of soil aggregate and organic matter had great influence on Gram-positive bacteria and actinomyces. In conclusion, soybean and maize crop rotation improve the soil nutrient content primarily by influencing the composition of bacterial community, especially the Gram-positive bacteria.

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Fertilization regime has a greater effect on soil microbial community structure than crop rotation and growth stage in an agroecosystem

Applied Soil Ecology ◽

10.1016/j.apsoil.2020.103510 ◽

2020 ◽

Vol 149 ◽

pp. 103510 ◽

Cited By ~ 7

Author(s):

Zhibin Guo ◽

Shuixia Wan ◽

Keke Hua ◽

Ye Yin ◽

HaiYan Chu ◽

...

Keyword(s):

Community Structure ◽

Microbial Community ◽

Crop Rotation ◽

Microbial Community Structure ◽

Soil Microbial Community ◽

Growth Stage ◽

Soil Microbial Community Structure ◽

Soil Microbial

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Soil microbial community structure and activity in a 100-year-old fertilization and crop rotation experiment

Journal of Plant Ecology ◽

10.1093/jpe/rtv007 ◽

2015 ◽

pp. rtv007 ◽

Cited By ~ 9

Author(s):

Cancan Zhao ◽

Shenglei Fu ◽

Reji P. Mathew ◽

Kathy S. Lawrence ◽

Yucheng Feng

Keyword(s):

Community Structure ◽

Microbial Community ◽

Crop Rotation ◽

Microbial Community Structure ◽

Soil Microbial Community ◽

Soil Microbial Community Structure ◽

Soil Microbial ◽

Structure And Activity

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Which of soil microbes is in positive correlation to yields of maize (Zea mays L.)?

Plant Soil and Environment ◽

10.17221/590/2017-pse ◽

2017 ◽

Vol 63 (No. 12) ◽

pp. 574-580 ◽

Cited By ~ 3

Author(s):

Ma Zhongyou ◽

Xie Yue ◽

Zhu Lin ◽

Cheng Liang ◽

Xiao Xin ◽

...

Keyword(s):

Community Structure ◽

Microbial Community ◽

Microbial Community Structure ◽

Soil Microbial Community ◽

Soil Microbes ◽

Organic Fertilizer ◽

Soil Microbial Community Structure ◽

Positive Correlation ◽

Soil Microbial ◽

Maize Yields

Soil microorganisms are critical to maintain soil function, enhance plant health and increase crop yields. This study investigated the effects of organic matter on soil microbial community and assessed which of soil microbes were in positive correlation to maize yields. The results showed that different fertilizer treatments shaped specific microbial communities in the same soils. The most abundant beneficial soil microbes were found in treatments with organic fertilizer produced from cattle manure, return of wheat straw and 70% NPK admixture fertilizers treatment. The correlation analysis revealed that maize yields were in no correlation both to the shifts of soil microbial community structure and to the number of sequences or operational taxonomic units (OTUs) in soil microbes. However, maize yields were in positive correlation to microbial community structure shifts at the species level. 35 bacteria OTUs from 19 orders in 14 classes in 9 phyla were in positive correlation to yields of maize, while in fungi only one OTU<sub>25</sub> belonging to Sordariales was in positive correlation. Our results indicate that the long-term application of organic and inorganic amendments could enrich the soil bacterial and fungal community and promote its diversity.

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