Long-term rice-crayfish-turtle co-culture maintains high crop yields by improving soil health and increasing soil microbial community stability

Li, Peng; Wu, Guogan; Li, Yujie; Hu, Cong; Liu, Ge; Zheng, Xianqing; Zhang, Juanqin; Zhang, Hanlin; Bai, Naling; Song, Lili; Sun, Yu; Jiang, Wei; Jia, Junjie; Chen, Yifan; Wang, Cui; Lv, Beibei; Xiao, Wu; Pan, Aihu; Li, Shuangxi; Lv, Wenzhen

doi:10.1016/j.geoderma.2022.115745

Cited by 32 publications

(9 citation statements)

References 78 publications

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“…Even though the alpha diversity indices, which present observed richness, Shannon’s, and Simpson’s indices, differed between the two sites, the differences were minor and did not reveal a significant difference. This result is consistent with previous studies on other rice co-culture fields, including rice–frog (Yi et al, 2019), rice–crab [ 19 ], and rice–fish fields [ 7 , 45 ]. Whilst Zhao et al [ 7 ] reported that microbial diversity in rice–fish co-culture fields was similar to those in monoculture rice fields in the first year of cultivation and substantially changed after 5 years, Li et al [ 45 ] found that it took up to 12 years to see the differences in rice–fish–turtle fields.…”

Section: Discussionsupporting

confidence: 93%

“…This result is consistent with previous studies on other rice co-culture fields, including rice–frog (Yi et al, 2019), rice–crab [ 19 ], and rice–fish fields [ 7 , 45 ]. Whilst Zhao et al [ 7 ] reported that microbial diversity in rice–fish co-culture fields was similar to those in monoculture rice fields in the first year of cultivation and substantially changed after 5 years, Li et al [ 45 ] found that it took up to 12 years to see the differences in rice–fish–turtle fields. Here, we showed that changes were still not found after three years of rice–fish cultivation.…”

Section: Discussionsupporting

confidence: 93%

“…Our results ( Table 1 ) reveal that the rice–fish co-culture system significantly increased SOC stock and TN similarly to other studies [ 41 , 42 , 43 , 44 ], which found that the rice–fish co-culture system can potentially increase the content of organic carbon and nitrogen in the soil through its mineralization of organic matter. This is due to the uneaten and excess feed as well as excreta produced during fish growth increasing SOC content and TN, which is consistent with the findings in the rice–crayfish–turtle co-culture by Li et al [ 45 ] and rice–crayfish farming system by Si et al [ 46 ]. They also revealed that crayfish and turtle feeding, molting, and excretion could increase the SOC and TN, while these aquatic animals help increase soil permeability by penetrating the soil surface in the paddy field.…”

Section: Discussionsupporting

confidence: 90%

“…Here, we showed that changes were still not found after three years of rice–fish cultivation. However, when it comes to community composition, all studies [ 7 , 45 , 50 ], including this one, found significant differences between co-culture and monoculture rice fields. A total of 135 differentially abundant taxa were found in both the MC and RF sites, four of which were among the abundant phyla and seven of which were among the top 30 most abundant genera, respectively.…”

Section: Discussionmentioning

confidence: 93%

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Soil Microbial Diversity and Community Composition in Rice–Fish Co-Culture and Rice Monoculture Farming System

Arunrat

Sansupa

Kongsurakan

et al. 2022

Biology

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Soil microorganisms play an important role in determining nutrient cycling. The integration of fish into rice fields can influence the diversity and structural composition of soil microbial communities. However, regarding the rice–fish co-culture (RF) farming system in Thailand, the study of the diversity and composition of soil microbes is still limited. Here, we aim to compare the microbial diversity, community composition, and functional structure of the bacterial communities between RF and rice monoculture (MC) farming systems and identify the environmental factors shaping bacterial community composition. Bacterial taxonomy was observed using 16s rRNA gene amplicon sequencing, and the functional structures of the bacterial communities were predicted based on their taxonomy and sequences. The results showed that soil organic carbon, total nitrogen (TN), organic matter, available phosphorous, and clay content were significantly higher in RF than in MC. The most dominant taxa across both paddy rice fields belonged to Actinobacteria, Chloroflexi, Proteobacteria, Acidobacteria, and Planctomycetes. The taxa Nitrosporae, Rokubacteria, GAL15, and Elusimicrobia were significantly different between both rice fields. At the genus level, Bacillus, Anaeromyxobacter, and HSB OF53-F07 were the predominant genera in both rice fields. The most abundant genus in MC was Anaeromyxobacter, whereas RF belonged to Bacillus. The community composition in MC was positively correlated with magnesium and sand content, while in RF was positively correlated with pH, TN, and clay content. Nitrogen fixation, aromatic compound degradation, and hydrocarbon degradation were more abundant in RF, while cellulolysis, nitrification, ureolysis, and phototrophy functional groups were more abundant in MC. The enzymes involved in paddy soil ecosystems included phosphatase, β-glucosidase, cellulase, and urease. These results provide novel insights into integrated fish in the paddy field as an efficient agricultural development strategy for enhancing soil microorganisms that increase soil fertility.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 93%

See 2 more Smart Citations

Soil Microbial Diversity and Community Composition in Rice–Fish Co-Culture and Rice Monoculture Farming System

Arunrat

Sansupa

Kongsurakan

et al. 2022

Biology

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“…The IAC group exhibited the highest species diversity [ 123 ], while the overabundance of Aeromonas and Citrobacter and the decrease in Acinetobacter and Kurthia were associated with severe WSSV disease [ 99 , 123 ]. In addition, significant differences were indicated in the composition of the gut microbiome after infection with C. freundii, which pose a threat to crayfish farming and can also cause human infection through consumption [ 124 ].…”

Section: Main Factors Affecting Crayfish Microbiota Abundances and Co...mentioning

confidence: 99%

Probiotics, Prebiotics, and Synbiotics Utilization in Crayfish Aquaculture and Factors Affecting Gut Microbiota

et al. 2023

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Aquaculture is affected by numerous factors that may cause various health threats that have to be controlled by the most environmentally friendly approaches. In this context, prebiotics, probiotics, and synbiotics are frequently incorporated into organisms’ feeding rations to ameliorate the health status of the host’s intestine, enhancing its functionality and physiological performance, and to confront increasing antimicrobial resistance. The first step in this direction is the understanding of the complex microbiome system of the organism in order to administer the optimal supplement, in the best concentration, and in the correct way. In the present review, pre-, pro-, and synbiotics as aquaculture additives, together with the factors affecting gut microbiome in crayfish, are discussed, combined with their future prospective outcomes. Probiotics constitute non-pathogenic bacteria, mainly focused on organisms’ energy production and efficient immune response; prebiotics constitute fiber indigestible by the host organism, which promote the preferred gastrointestinal tract microorganisms’ growth and activity towards the optimum balance between the gastrointestinal and immune system’s microbiota; whereas synbiotics constitute their combination as a blend. Among pro-, pre-, and synbiotics’ multiple benefits are boosted immunity, increased resistance towards pathogens, and overall welfare promotion. Furthermore, we reviewed the intestinal microbiota abundance and composition, which are found to be influenced by a plethora of factors, including the organism’s developmental stage, infection by pathogens, diet, environmental conditions, culture methods, and exposure to toxins. Intestinal microbial communities in crayfish exhibit high plasticity, with infections leading to reduced diversity and abundance. The addition of synbiotic supplementation seems to provide better results than probiotics and prebiotics separately; however, there are still conflicting results regarding the optimal concentration.

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The Ecology of Intercropping Systems, Tree‐Cover Dynamics of Grazing Lands, and Cover Crops for Soil Management

Kumar

Singh²,

Joshi

et al. 2023

Agroecological Approaches for Sustainable Soil Management

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Long-term rice-crayfish-turtle co-culture maintains high crop yields by improving soil health and increasing soil microbial community stability

Cited by 32 publications

References 78 publications

Soil Microbial Diversity and Community Composition in Rice–Fish Co-Culture and Rice Monoculture Farming System

Soil Microbial Diversity and Community Composition in Rice–Fish Co-Culture and Rice Monoculture Farming System

Probiotics, Prebiotics, and Synbiotics Utilization in Crayfish Aquaculture and Factors Affecting Gut Microbiota

The Ecology of Intercropping Systems, Tree‐Cover Dynamics of Grazing Lands, and Cover Crops for Soil Management

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