The Dynamics of Soil Microbe Metabolic Function Diversity in the Root- Zone of Maize-soybean Intercropping. | [International Journal of Agriculture and Biology • 2019]

Author(s):

1. Liu Li: Key Lab of Forestry Disaster Warning and Control of Yunnan Province, Southwest Forestry University,Kunming, Yunnan Province 650224,PR China: State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University,Kunming, Yunnan Province 650224,PR China

2. Han Qing-li: Key Lab of Forestry Disaster Warning and Control of Yunnan Province, Southwest Forestry University,Kunming, Yunnan Province 650224,PR China

3. Liu Chao-mao: Key Lab of Forestry Disaster Warning and Control of Yunnan Province, Southwest Forestry University,Kunming, Yunnan Province 650224,PR China

4. Yang Jing: State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University,Kunming, Yunnan Province 650224,PR China

5. Liu Lin: State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University,Kunming, Yunnan Province 650224,PR China

6. Wu Jian-rong: Key Lab of Forestry Disaster Warning and Control of Yunnan Province, Southwest Forestry University,Kunming, Yunnan Province 650224,PR China

7. Li Cheng-yun: State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University,Kunming, Yunnan Province 650224,PR China

Abstract:

Maize and soybean intercropping can increase aboveground productivity and land use efficiency. Soil microbes play important roles in plant nutrient availability and soil ecosystems. However, the dynamics of soil microbe metabolic function diversity of intercropping have been less reported. We monitored the soil microbes metabolic function, diversity and carbon sources utilization in the root-zone soil of intercropped maize and soybean throughout the growing season by using Biology techniques. Our results showed that at the seedling stage for maize and soybean, the C-substrate-utilization profiles were grouped according to crop type (i.e. intercropping maize and monocropping maize grouped together). In contrast, at the tasseling stage for maize, the profiles were grouped by cropping systems (i.e., intercropping maize and intercropping soybean grouped together). Furthermore, intercropping enhanced the C-substrate-utilization profiles in maize, leading to more efficient metabolism of nitrogen compounds (such as amines) and other substrates that are typically resistant to degradation (such as esters). Last, the alpha-biodiversity Shannon index (H) and Simpson (J) were significantly higher in intercropping maize (H=4.762, J=0.961) samples than in monocropping maize (H=4.685, J=0.958) at the tasseling stage for maize. Keyword: Maize-soybean intercropping; Root areas; Microbial metabolic profiling

Page(s): 639-647

DOI: 10.17957/IJAB/15.0939

Published: Journal: International Journal of Agriculture and Biology, Volume: 21, Issue: 3, Year: 2019

Keywords:

Microbial metabolic profiling , Root areas

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views