Changes in microbial communities in soil treated with organic or conventional N sources

Habteselassie, Mussie Y.; Woodruff, L.K.; Norton, Jeanette M.; Ouyang, Yang; Sintim, Henry Y.

doi:10.1002/jeq2.20406

Cited by 4 publications

(2 citation statements)

References 53 publications

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“…The soil microbial community properties and diversity might be strongly influenced by soil physical and chemical properties, such as soil moisture and soil nutrient availability, and could reflect changes in soil ecological processes ( Habteselassie et al, 2022 ; Li et al, 2022 ). This study showed that preceding crop cultivation could significantly affect the physicochemical properties of tobacco-plant soil, overall depends on the crop types.…”

Section: Discussionmentioning

confidence: 99%

Variations in different preceding crops on the soil environment, bacterial community richness and diversity of tobacco-planting soil

Liu,

Xue,

Wang

et al. 2024

Front. Microbiol.

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Tobacco (Nicotiana tabacum L.) is a major cash crop, and soil quality played a significant role in the yield and quality of tobacco. Most farmers cultivate tobacco in rotation with other crops to improve the soil characteristics. However, the effects of different previous crops on the soil’s nutrient status and bacterial community for tobacco cultivation still need to be determined. Three treatments were assessed in this study, i.e., tobacco-planting soil without treatment (CK), soil with barley previously cultivated (T1), and soil with rapeseed previously cultivated (T2). The soil physical and chemical properties and the 16S rRNA gene sequence diversity of the bacterial community were analyzed. The effects of different crops on the physical and chemical properties of tobacco-planting soil and the diversity and richness of the bacterial community were comprehensively discussed. The results of this study showed that different previously cultivated crops altered the nutrient status of the soil, with changes in the ratio of NH4+-N to NO3−-N having the most significant impact on tobacco. In CK, the ratio of NH4+-N to NO3−-N was 1:24.2, T1–1:9.59, and T2–1:11.10. The composition of the bacterial community in tobacco-planting soil varied significantly depending on the previously cultivated crops. The richness and diversity of the bacterial community with different crops were considerably higher than without prior cultivation of different crops. The dominant bacteria in different treatments were Actinobacteriota, Proteobacteria, and Chloroflexi with their relative abundance differed. In conclusion, our study revealed significant differences in nutrient status, bacterial community diversity, and the richness of tobacco-planting soil after the preceding cultivation of different crops. Suitable crops should be selected to be previously cultivated in tobacco crop rotations in near future for sustainable agriculture.

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Section: Discussionmentioning

confidence: 99%

Variations in different preceding crops on the soil environment, bacterial community richness and diversity of tobacco-planting soil

Liu,

Xue,

Wang

et al. 2024

Front. Microbiol.

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“…For instance, total viable aerobic (TVA) counts were higher in organic than conventional at both sampling times, whereas anaerobic microbial counts were higher in organic only at T1 and for oligotrophs only at T2. Higher levels of microorganism diversity are usually reported in organic farming due to the higher amount of organic matter [49]. Additionally, shifts over time in microbial communities are common [50].…”

Section: The Farming System Conditions the Status Of The Soilmentioning

confidence: 99%

Root–Soil Interactions for Pepper Accessions Grown under Organic and Conventional Farming

MORALES-MANZO

Ribes-Moya

Pallotti

et al. 2023

Plants

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Modern agriculture has boosted the production of food based on the use of pesticides and fertilizers and improved plant varieties. However, the impact of some such technologies is high and not sustainable in the long term. Although the importance of rhizospheres in final plant performance, nutrient cycling, and ecosystems is well recognized, there is still a lack of information on the interactions of their main players. In this paper, four accessions of pepper are studied at the rhizosphere and root level under two farming systems: organic and conventional. Variations in soil traits, such as induced respiration, enzymatic activities, microbial counts, and metabolism of nitrogen at the rhizosphere and bulk soil, as well as measures of root morphology and plant production, are presented. The results showed differences for the evaluated traits between organic and conventional management, both at the rhizosphere and bulk soil levels. Organic farming showed higher microbial counts, enzymatic activities, and nitrogen mobilization. Our results also showed how some genotypes, such as Serrano or Piquillo, modified the properties of the rhizospheres in a very genotype-dependent way. This specificity of the soil–plant interaction should be considered for future breeding programs for soil-tailored agriculture.

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Effects of sustainable agricultural practices on soil microbial diversity, composition, and functions

Mondaca,

Celis-Diez,

Díaz-Siefer

et al. 2024

Agriculture, Ecosystems & Environment

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Changes in microbial communities in soil treated with organic or conventional N sources

Cited by 4 publications

References 53 publications

Variations in different preceding crops on the soil environment, bacterial community richness and diversity of tobacco-planting soil

Variations in different preceding crops on the soil environment, bacterial community richness and diversity of tobacco-planting soil

Root–Soil Interactions for Pepper Accessions Grown under Organic and Conventional Farming

Effects of sustainable agricultural practices on soil microbial diversity, composition, and functions

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