Soil biochemical and microbial response to wheat and corn stubble residue management in Louisiana

Acree, Autumn; Fultz, Lisa M.; Lofton, Josh; Haggard, Beatrix

doi:10.1002/agg2.20004

Cited by 4 publications

(4 citation statements)

References 77 publications

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“…and nitrogenous fertilizers in a wheat rotation (Triticum aestivum L.) increased NH 4  (ammonium) concentrations by 153%, and relative abundance of saprophytic fungi that contribute to the mineralization of plant compounds, which is important since they form the so-called humus. Humus is a mixture of organic compounds that has positive effects on soils by maintaining physical-chemical structure and providing availability of nutrients; Additionally, the amount of ammonium and beneficial organisms increase significantly with the application of nitrogenous fertilizers [10].…”

Section: Results and Discussion Agricultural Implementation And Veget...mentioning

confidence: 99%

Implementation of stubble in agricultural production: A review

Barrera-Guzmán

Cadena-Íñiguez²,

Ramírez-OjedaGabriela³

2022

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Objective: To elucidate the benefits that agricultural residues or stubble have in agricultural activities, through a bibliographic and objective review that could help to make the actors of agricultural sector aware of the benefits and their correct implementation in production systems. Design/methodology/approach: A detailed review of scientific articles from the main academic databases and repositories was performed. We took into account aspects such as the use of stubble as plant cover; effects and changes in physical and chemical structure of soil; crop yield and use for livestock feeding. Results: The use of stubble has beneficial effects on agricultural activities. In agriculture, they have positive effects for the proliferation of beneficial organisms and assimilation of nutrients, which are easily absorbed by plants. Consequently, crop yield is maximized both in quantity and quality terms. In livestock sector, the stubble implement provides nutrients such as proteins, ashes and vitamins, which together with conventional diets, reduce production costs and improve meat and milk production. Limitations on study/implications: The repertoire of scientific articles related to stubble is very broad, making it difficult to assimilate the information. In Mexico, particularly, more research is needed to inform farmers of the possible uses of stubble. Findings/conclusions: The use of stubble in agricultural activities generates benefits at ecological and economic levels, which ensure the sustainability and resilience of agroecosystems. Nutritional content of stubble is a function of the species and/or varieties of agricultural species. The lack of knowledge in the management of stubble leads to these being incinerated, releasing particles and toxic and polluting substances for the environment, further favoring the conditions for greenhouse effect.

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Section: Results and Discussion Agricultural Implementation And Veget...mentioning

confidence: 99%

Implementation of stubble in agricultural production: A review

Barrera-Guzmán

Cadena-Íñiguez²,

Ramírez-OjedaGabriela³

2022

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“…However, comprehensive studies on the effect of these prescribed fires on soil microbial communities are rare. Acree et al ( 2020 ) found a significant decrease in abundance of soil total bacteria, saprotrophic and arbuscular mycorrhizae fungi 6 h after wheat stubble burning, but a recovery was observed 7 days after the treatment. However, they did not measure any changes in soil microbial abundance for corn stubble burning (Acree et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…Acree et al ( 2020 ) found a significant decrease in abundance of soil total bacteria, saprotrophic and arbuscular mycorrhizae fungi 6 h after wheat stubble burning, but a recovery was observed 7 days after the treatment. However, they did not measure any changes in soil microbial abundance for corn stubble burning (Acree et al, 2020 ). Another study measured the effect of burning in a wheat-lupin-wheat crop sequence on soil biological activities (Alvear et al, 2005 ).…”

Section: Introductionmentioning

confidence: 99%

“…More precisely, the changes observed on soil chemistry and microbial communities should be mitigated by the reduced soil temperature and depth of burn reached during thermal pruning. Burning has been used in other agricultural practices that can be more comparable to wild blueberry thermal pruning, such as post-harvest stubble burning in cotton, sugarcane, rice (Hardison, 1976 ), as well as wheat and corn (Acree et al, 2020 ). However, comprehensive studies on the effect of these prescribed fires on soil microbial communities are rare.…”

Section: Introductionmentioning

confidence: 99%

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Limited effect of thermal pruning on wild blueberry crop and its root-associated microbiota

et al. 2022

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Thermal pruning was a common pruning method in the past but has progressively been replaced by mechanical pruning for economic reasons. Both practices are known to enhance and maintain high yields; however, thermal pruning was documented to have an additional sanitation effect by reducing weeds and fungal diseases outbreaks. Nevertheless, there is no clear consensus on the optimal fire intensity required to observe these outcomes. Furthermore, fire is known to alter the soil microbiome as it impacts the soil organic layer and chemistry. Thus far, no study has investigated into the effect of thermal pruning intensity on the wild blueberry microbiome in agricultural settings. This project aimed to document the effects of four gradual thermal pruning intensities on the wild blueberry performance, weeds, diseases, as well as the rhizosphere fungal and bacterial communities. A field trial was conducted using a block design where agronomic variables were documented throughout the 2-year growing period. MiSeq amplicon sequencing was used to determine the diversity as well as the structure of the bacterial and fungal communities. Overall, yield, fruit ripeness, and several other agronomical variables were not significantly impacted by the burning treatments. Soil phosphorus was the only parameter with a significant albeit temporary change (1 month after thermal pruning) for soil chemistry. Our results also showed that bacterial and fungal communities did not significantly change between burning treatments. The fungal community was dominated by ericoid mycorrhizal fungi, while the bacterial community was mainly composed of Acidobacteriales, Isosphaerales, Frankiales, and Rhizobiales. However, burning at high intensities temporarily reduced Septoria leaf spot disease in the season following thermal pruning. According to our study, thermal pruning has a limited short-term influence on the wild blueberry ecosystem but may have a potential impact on pests (notably Septoria infection), which should be explored in future studies to determine the burning frequency necessary to control this disease.

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Effects of humic acid application on bacterial diversity under maize cultivation

Santi,

Somboon,

Thip‐Amat

et al. 2024

Agrosystems Geosci & Env

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The fundamental ecosystem processes in soil are regulated by microbial communities, and community diversity is implicated by soil environmental conditions. Humic acid (HA) improves soil quality and fertility, stimulating the microbial environment, but the detailed effects remain poorly understood. We investigated the effects of HA rates on soil bacterial diversity, particularly on species richness and community composition in the rhizosphere of corn (Zea mays). Inorganic fertilizer (T2), HA 0.5% (T3), HA 1.0% (T4), HA 1.5% (T5), and HA 2.0% (T6) were applied in soil. Initial soil (O1) and control after harvesting (T1) were included. A total of 3601 operational taxonomic units were captured from the overall sample, and analysis of 16S ribosomal ribonucleic acid amplicon sequencing data indicated that HA did not notably impact species richness. Intriguingly, HA induced changes in bacterial community composition, along with the relative prevalence of specific taxa. Certain associations between soil chemical properties and abundance distribution have been uncovered. Notably, exchangeable Mg2+, Ca2+, and available phosphorus were strongly related to the relative abundance of bacterial phyla. Furthermore, HA potentially shaped the specific bacterial taxa, as the application of HA at different rates had distinct effects on the member of bacterial abundance of each taxon. These findings enhance our understanding of communities potentially being increased or shifted by HA rate addition in short‐term corn cultivation.

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Soil biochemical and microbial response to wheat and corn stubble residue management in Louisiana

Cited by 4 publications

References 77 publications

Implementation of stubble in agricultural production: A review

Implementation of stubble in agricultural production: A review

Limited effect of thermal pruning on wild blueberry crop and its root-associated microbiota

Effects of humic acid application on bacterial diversity under maize cultivation

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