Activation effect of soil available nitrogen, manganese and cobalt after addition of different fumigants

Yan, Dongdong; Wang, Qing; Song, Zhaoxin; Fang, Wensheng; Wang, Qiuxia; Li, Yuan; Cao, Aocheng

doi:10.1088/2515-7620/ac64ed

Cited by 5 publications

(3 citation statements)

References 36 publications

(36 reference statements)

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“…In the mutants grown in the non-fumigated soils, lower leaf chlorophyll content is not surprising because of the lack of nitrogen fixation as a result of the absence of nodule formation (Figures 1A,B). However, previous studies have found that fumigation increased the nitrogen content of soils because of the degradation and release of nutrients from the dead microbial cells, which may explain the higher chlorophyll content in mutant plants associated with the fumigated soils (Yan et al, 2022). Furthermore, the end products of chloropicrin, which was the fumigant used in this study, upon degradation are carbon dioxide, chlorine, and nitrogen.…”

Section: Farming System and Fumigation Dependent Growth Performance O...mentioning

confidence: 72%

Diversity and function of soybean rhizosphere microbiome under nature farming

Agyekum

Kobayashi²,

Dastogeer³

et al. 2023

Front. Microbiol.

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Nature farming is a farming system that entails cultivating crops without using chemical fertilizers and pesticides. The present study investigated the bacterial and fungal communities in the rhizosphere of soybean grown in conventional and nature farming soils using wild-type and non-nodulating mutant soybean. The effect of soil fumigant was also analyzed to reveal its perturbation of microbial communities and subsequent effects on the growth of soybean. Overall, the wild-type soybean exhibited a better growth index compared to mutant soybean and especially in nature farming. Nodulation and arbuscular mycorrhiza (AM) fungi colonization were higher in plants under nature farming than in conventionally managed soil; however, fumigation drastically affected these symbioses with greater impacts on plants in nature farming soil. The rhizosphere microbiome diversity in nature farming was higher than that in conventional farming for both cultivars. However, the diversity was significantly decreased after fumigation treatment with a greater impact on nature farming. Principal coordinate analysis revealed that nature farming and conventional farming soil harbored distinct microbial communities and that soil fumigation significantly altered the communities in nature farming soils but not in conventional farming soils. Intriguingly, some beneficial microbial taxa related to plant growth and health, including Rhizobium, Streptomyces, and Burkholderia, were found as distinct microbes in the nature farming soil but were selectively bleached by fumigant treatment. Network analysis revealed a highly complex microbial network with high taxa connectivity observed under nature farming soil than in conventional soil; however, fumigation strongly broke it. Overall, the results highlighted that nature farming embraced higher microbial diversity and the abundance of beneficial soil microbes with a complex and interconnected network structure, and also demonstrated the underlying resilience of the microbial community to environmental perturbations, which is critical under nature farming where chemical fertilizers and pesticides are not applied.

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Section: Farming System and Fumigation Dependent Growth Performance O...mentioning

confidence: 72%

Diversity and function of soybean rhizosphere microbiome under nature farming

Agyekum

Kobayashi²,

Dastogeer³

et al. 2023

Front. Microbiol.

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“…However, Wang et al (2023) illustrate that younger Chinese consumers are more likely to spend a small amount of money to avoid the inconvenience of carrying eco-friendly shopping bags compared to the older generation. Compared to the older generation, who are used to being frugal and continue to avoid unnecessar y expenses even when their financial situation improves, the cost of plastic bags is insignificant for younger consumers.…”

Section: Introductionmentioning

confidence: 99%

Identify Factors Influencing Young People's Use of Eco-friendly Shopping Bags in the China Guangdong Province

Guan,

Mohd Bakhir

2024

PaperASIA

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The severity of plastic pollution is increasing, and delaying sustainable development is not an option. China is a large consumer of plastic, so it is essential to encourage the use of eco-friendly shopping bags there. The paper focuses on the recognition and use of eco-friendly shopping bags among young people in Guangdong Province, China, and determines what factors can lead to a rise in the use of these bags. A questionnaire was utilized to gather data from 392 young people in Guangdong Province using a quantitative research approach. According to the data from the questionnaire, they generally are supportive of eco-friendly shopping bags. Ultimately, the paper's data emphasize the positive effects of materials (paper material), function (internal compartment), and design (green label). For the purpose of advocating sustainable development, this paper provides helpful guidance for the design of eco-friendly shopping bags.

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“…It has been widely used in high-value crops such as P. notoginseng, yam, lily, etc. (Yan et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Long-term effects of chloropicrin fumigation on soil microbe recovery and growth promotion of Panax notoginseng

Wang

et al. 2023

Front. Microbiol.

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IntroductionPanax notoginseng is a precious Chinese medicinal material. Soil fumigation can control soil-borne disease and overcome the continuous cropping obstacles of P. notoginseng. However, chloropicrin (CP) fumigation can kill non-target soil microorganisms and reduce microbial diversity, but the long-time impacts of CP fumigation on soil microbial are less reported.MethodsWe studied the long-term effects of CP fumigation on soil microbes with high-throughput gene sequencing, and correlated the changes in the composition of microbial communities with environmental factors like soil physicochemical properties and soil enzyme activities. This study mainly focuses on the recovery characteristics of soil microbe after soil fumigation by evaluating the ecological restoration of P. notoginseng soil, its sustained control effect on plant diseases, and its promotion effect on crop growth by focusing on the CP fumigation treatment.ResultsThe results showed that CP fumigation significantly increased soil available phosphorus (P) to 34.6 ~ 101.6 mg/kg and electrical conductivity (EC) by 18.7% ~ 34.1%, respectively. High-throughput gene sequencing showed that soil fumigation with CP altered the relative abundance of Trichoderma, Chaetomium, Proteobacteria, and Chloroflexi in the soil while inhibiting a lot of Fusarium and Phytophthora. The inhibition rate of Phytophthora spp. was still 75.0% in the third year after fumigation. Fumigation with CP enhanced P. notoginseng’s survival rate and stimulated plant growth, ensuring P. notoginseng’s healthy in the growth period. The impact of fumigation on microbial community assembly and changes in microbial ecological niches were characterized using normalized stochasticity ratio (NST) and Levins’ niche breadth index. Stochasticity dominated bacterial community assembly, while the fungal community was initially dominated by stochasticity and later by determinism. Fumigation with CP reduced the ecological niches of both fungi and bacteria.ConclusionIn summary, the decrease in microbial diversity and niche caused by CP fumigation could be recovered over time, and the control of soil pathogens by CP fumigation remained sustainable. Moreover, CP fumigation could overcome continuous cropping obstacles of P. notoginseng and promote the healthy growth of P. notoginseng.

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Activation effect of soil available nitrogen, manganese and cobalt after addition of different fumigants

Cited by 5 publications

References 36 publications

Diversity and function of soybean rhizosphere microbiome under nature farming

Diversity and function of soybean rhizosphere microbiome under nature farming

Identify Factors Influencing Young People's Use of Eco-friendly Shopping Bags in the China Guangdong Province

Long-term effects of chloropicrin fumigation on soil microbe recovery and growth promotion of Panax notoginseng

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