Dissolved organic carbon drives nutrient cycling via microbial community in paddy soil

Wang, Qingqing; Huang, Qing; Wang, Jiaxin; Khan, Muhammad Amjad; Guo, Genmao; Yin, Liang; Hu, Shan; Jin, Fangming; Wang, Junfeng; Yu, Yunbo

doi:10.1016/j.chemosphere.2021.131472

Cited by 15 publications

(7 citation statements)

References 37 publications

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“…As a dissolved component of humus, microorganisms, and root exudates in soil, the DOM content can indirectly reflect the quality of SOM [34,43]. In this study, the OM and HWP treatments significantly enhanced the DOM content (Figure 2).…”

Section: Changes In Integrated Fertility Under Different Treatmentsmentioning

confidence: 61%

“…In this study, the OM and HWP treatments significantly enhanced the DOM content (Figure 2). Thus, it could be speculated that natural humus material and organic fertilizer additions might accelerate the turnover of soil nutrients (for example, the carbon metabolism of microbial communities), which in turn increases soil DOM accumulation, according to the results reported by Li et al [34] and Wang et al [43]. Furthermore, the addition of natural humus material also has potential advantages in enhancing the SOM stability.…”

Section: Changes In Integrated Fertility Under Different Treatmentsmentioning

confidence: 95%

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The Effects of Natural Humus Material Amendment on Soil Organic Matter and Integrated Fertility in the Black Soil of Northeast China: Preliminary Results

et al. 2023

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The input of exogenous organic materials is an effective way to improve soil organic matter (SOM) content in cropland. The exploration of the impact of new organic materials such as woody peat on black soil fertility can provide an important reference for preventing the degradation of black soil in Northeast China. In this study, the effects of adding woody peat to SOM and the soil-integrated fertility of black cropland were studied by seven treatments (no organic matter addition, CK; crop straw returning, SR; decomposed straw addition, DS; organic manure addition, OM; 6 t/ha woody peat addition, LWP; 10.5 t/ha natural humus material addition, MWP; and 15 t/ha natural humus material addition, HWP). The results show that natural humus material additions (LWP, MWP, and HWP treatments) could significantly increase SOM (increased by 4.79~9.41 g/kg), labile SOM (increased by 2.49~4.52 g/kg), and recalcitrant SOM (increased by 2.13~6.39 g/kg) components, respectively. For comparison, traditional organic material inputs (SR, DS, and OM treatments) had no significant effect on SOM but induced an increase in the labile SOM component in the following year. This study also found that natural humus material additions could improve soil-integrated fertility in a year term, especially in promoting SOM accumulation. However, organic manure amendment showed both the advantage of increasing soil fertility slightly and the disadvantage of increasing soil salt sharply. In conclusion, compared with traditional exogenous organic materials, the natural humus material amendment technique can rapidly increase the total SOM quantity and its different stability components and has a great effect in improving the integrated fertility of black soil. Thus, it is of significance to further study the potential of natural humus material amendment in the fertility of black soil in future.

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Section: Changes In Integrated Fertility Under Different Treatmentsmentioning

confidence: 61%

Section: Changes In Integrated Fertility Under Different Treatmentsmentioning

confidence: 95%

The Effects of Natural Humus Material Amendment on Soil Organic Matter and Integrated Fertility in the Black Soil of Northeast China: Preliminary Results

et al. 2023

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“…In addition, AS and OM content directly affected maize yield ( Figure 5 ). Microbial activities facilitate S oxidation and reduction reactions, which are pivotal in driving the soil sulfur cycle ( Su et al, 2017 ; Wang Q. et al, 2021 ). Several investigation shaved demonstrated that fertilizers indirectly alter the soil bacterial community structures and other characteristics or directly affect crop production by affecting soil physicochemical and microbial properties.…”

Section: Discussionmentioning

confidence: 99%

Responses of soil bacterial communities and maize yields to sulfur application across four soil types

Dong,

Zhang,

Wang

et al. 2024

Front. Microbiol.

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IntroductionThis study assessed the effects of S application on maize yields and soil bacterial communities across four sites with different soil types and three S application rates (0 kg ha-1, 30 kg ha-1, and 90 kg ha-1).MethodsChanges in soil properties, bacterial community diversity, structure, and their contributions to maize production were evaluated post-S application treatments.Results(1) S application decreased soil pH, increased available sulfur (AS), and boosted maize yields in all soil types. (2) Reduced Chao1 and Shannon diversity indices were observed in black soil after S application. (3) Bacterial community structure was significantly affected by S application, except in sandy soil, impacting key stone taxa abundance. (4) Black soil showed higher sensitivity to S application due to less stable bacterial community structure. (5) Soil physicochemical indicators altered by S application, such as AS and pH, mediated bacterial diversity, influencing maize yield. Organic matter (OM) had the most significant direct positive effect on yield, followed by AS and bacterial community diversity.DiscussionThis study emphasizes the impact of S application on soil properties and bacterial communities in diverse soil types. Understanding these mechanisms can guide precision S application practices for maize yield regulation.

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“…In this study, biochar application increased the supply and retention of AP in the soil (Table 1), but the bacterial and archaeal communities had little response to the change in the soil AP (Figure 6), and the relative abundance of functional protein sequences related to the phosphorus metabolism did not change significantly (Figure 8). This may be due to the dynamic change in the rice demand with the PBC during the whole growth period [47].…”

Section: Interaction Between High-dose Biochar Application and Microb...mentioning

confidence: 99%

The Inhibiting Effects of High-Dose Biochar Application on Soil Microbial Metagenomics and Rice (Oryza sativa L.) Production

Zhu,

Yu,

Song

et al. 2023

IJMS

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Biochar is usually considered as an organic improver which can improve soil and increase crop yields. However, the unrestricted application of biochar to normal-fertility farmland will cause chemical stress on crops and affect agricultural production. At present, the effects and mechanisms of high-dose applications of biochar on rice (Oryza sativa L.) production and soil biological characteristics have not been fully studied. In this greenhouse pot experiment, combined with soil microbial metagenomics, three treatments in triplicates were conducted to explore the responses of rice production, soil chemical properties, and soil biological properties to high-dose applications of biochar (5%, w/w) prepared using peanut waste (peanut hulls and straw). The results show that peanut hulls, with a loose texture and pore structure, are a raw material with stronger effects for preparing biochar than peanut straw in terms of its physical structure. In a rice monoculture system, high-dose applications of biochar (5%, w/w) can slightly increase the grains per spike, while significantly inhibiting the spike number per pot and the percentage of setting. High-dose applications of biochar also have significant negative effects on the diversity and stability of soil bacterial and archaeal communities. Moreover, the microbial metabolism and nutrient cycling processes are also significantly affected by changing the soil carbon/nitrogen ratio. This study discusses the response mechanisms of rice production and soil biology to high-dose biochar applications, and complements the understanding of irrational biochar application on agricultural production and land sustainability.

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Dissolved organic carbon drives nutrient cycling via microbial community in paddy soil

Cited by 15 publications

References 37 publications

The Effects of Natural Humus Material Amendment on Soil Organic Matter and Integrated Fertility in the Black Soil of Northeast China: Preliminary Results

The Effects of Natural Humus Material Amendment on Soil Organic Matter and Integrated Fertility in the Black Soil of Northeast China: Preliminary Results

Responses of soil bacterial communities and maize yields to sulfur application across four soil types

The Inhibiting Effects of High-Dose Biochar Application on Soil Microbial Metagenomics and Rice (Oryza sativa L.) Production

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