Improved effects of combined application of nitrogen-fixing bacteria Azotobacter beijerinckii and microalgae Chlorella pyrenoidosa on wheat growth and saline-alkali soil quality

Zhou, Lixiu; Liu, Wei; Duan, Huijie; Dong, Haiwen; Li, Jingchao; Shu-xi, Zhang; Zhang, Jing; Ding, Shigang; Xu, Tongtong; Guo, Boling

doi:10.1016/j.chemosphere.2022.137409

Cited by 20 publications

(6 citation statements)

References 85 publications

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“…In the preliminary experiment, we found that P. fluorescens is similar to biofertilizers and has the disadvantage of poor stability. Therefore, P. fluorescens was applied in combination with inorganic and organic fertilizers to increase its stability in soil [ 34 , 35 ].…”

Section: Discussionmentioning

confidence: 99%

Pseudomonas fluorescens with Nitrogen-Fixing Function Facilitates Nitrogen Recovery in Reclaimed Coal Mining Soils

Wu,

Wang,

Meng

et al. 2023

Microorganisms

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Coal mining has caused significant soil nitrogen loss in mining areas, limiting reclamation and reuse in agriculture. This article studies the effects of organic fertilizer, inorganic fertilizer, and the combined application of Pseudomonas fluorescens with the ability of nitrogen fixation on soil nitrogen accumulation and composition in the reclamation area of the Tunlan Coal Mine from 2016 to 2022 under the conditions of equal nitrogen application, providing a scientific basis for microbial fertilization and the rapid increase in nitrogen content in the reclaimed soil of mining areas. The results showed that as the reclamation time increased, the nitrogen content and the composition and structure of the soil treated with fertilization rapidly evolved toward normal farmland soil. The soil nitrogen content increased most rapidly in the presence of added P. fluorescens + organic fertilizer (MB). Compared to other treatments (inorganic fertilizer (CF), organic fertilizer (M), and P. fluorescens + inorganic fertilizer (CFB)), MB increased total nitrogen (TN) to normal farmland soil levels 1–3 years earlier. The comprehensive scores of MB and CFB on the two principal components increased by 1.58 and 0.79 compared to those of M and CF treatments, respectively. This indicates that the combination of P. fluorescens and organic fertilizer improves soil nitrogen accumulation more effectively than the combination of P. fluorescens and inorganic fertilizer. In addition, the application of P. fluorescens increases the content of unknown nitrogen (UN) in acid-hydrolysable nitrogen (AHN) and decreases the content of amino acid nitrogen (AAN) and ammonia nitrogen (AN). However, there was no significant effect on the content of ammonium nitrogen (NH4+-N) and nitrate nitrogen (NO3−-N) in soil-mineralized nitrogen (SMN). When combined with inorganic fertilizer, the contribution of SMN to TN increased by 14.78%, while when combined with organic fertilizer, the contribution of AHN to TN increased by 44.77%. In summary, the use of P. fluorescens is beneficial for nitrogen recovery in the reclaimed soil of coal-mining areas. The optimal fertilization method under the experimental conditions is the combination of P. fluorescens and organic fertilizer.

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Section: Discussionmentioning

confidence: 99%

Pseudomonas fluorescens with Nitrogen-Fixing Function Facilitates Nitrogen Recovery in Reclaimed Coal Mining Soils

Wu,

Wang,

Meng

et al. 2023

Microorganisms

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“…Biofertilizers and biostimulants obtained from microalgae are products considered to have high beneficial potential in modern agriculture since they allow for improvements in the absorption of nutrients, increase the efficiency of crops, and improve the physiological state of plants [ 66 , 67 , 68 , 69 , 70 , 71 ]. Authors such as Mousa [ 35 ] report that, currently, in countries such as Jordan, India, and the United States, there are companies that produce and market liquid biofertilizers based on algae, reporting successful cases for fruit and vegetable crops, as well as field crops.…”

Section: Case Studies On the Application Of Biofertilizers And Biosti...mentioning

confidence: 99%

Advances in the Development of Biofertilizers and Biostimulants from Microalgae

Miranda,

Hernandez-Tenorio,

Villalta

et al. 2024

Biology

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Microalgae have commercial potential in different sectors of the industry. Specifically in modern agriculture, they can be used because they have the ability to supply nutrients to the soil and produce plant growth hormones, polysaccharides, antimicrobial compounds, and other metabolites that improve agricultural productivity. Therefore, products formulated from microalgae as biofertilizers and biostimulants turn out to be beneficial for agriculture and are positioned as a novel and environmentally friendly strategy. However, these bioproducts present challenges in preparation that affect their shelf life due to the rapid degradation of bioformulated products. Therefore, this work aimed to provide a comprehensive review of biofertilizers and biostimulants from microalgae, for which a bibliometric analysis was carried out to establish trends using scientometric indicators, technological advances were identified in terms of formulation methods, and the global market for these bioproducts was analyzed.

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“…Saline-alkali soil improvement and utilization have been hot topics internationally for some time. A series of saline-alkali land improvement technologies have been successfully developed (such as physical improvement [3], chemical improvement [4][5][6], hydraulic engineering improvement, biological improvement [7], etc.). However, the above technologies all have certain limitations which have become a bottleneck in the green sustainable improvement and development of saline-alkali land worldwide.…”

Section: Introductionmentioning

confidence: 99%

Practice of Improving Saline–Alkali Soil with Bio-Humic Acid

Zhang,

Qiao,

Song

2024

Processes

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The improvement and exploitation of saline–alkali soil is a hot topic worldwide. Analysis of soil aggregate structure and water and of the salt transport law, a new technology that uses humic acid as a saline–alkali soil amendment has been proposed. These advancements may effectively improve the soil aggregate structure of saline–alkali soil at the source. In this study, biological pyrolysis liquid was modified to produce soil modifier for saline–alkali land, and this soil modifier was used in a rice planting experiment. The results show that the application of a bio-humic acid soil amendment in the amount of 3000 kg/ha and its combination with humic acid fertilizer produced rice yields as high as 9750 kg/ha. At the same time, the pH of the soil was reduced from 10.81 to 8.95 (with bio-humic acid soil amendment content of 3000 kg/ha), and the soil organic matter demonstrated a trend of increasing with an increased amount of bio-humic acid soil amendment. The content of calcium, magnesium, and trace elements in the soil were clearly increased with the use of the amended soil in comparison with the normal group. With this amendment, saline–alkali land could be transformed and planted in the same year, increasing the potential yearly income for the land. This may be efficient and environmentally friendly, encouraging the agricultural circular economy.

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Improved effects of combined application of nitrogen-fixing bacteria Azotobacter beijerinckii and microalgae Chlorella pyrenoidosa on wheat growth and saline-alkali soil quality

Cited by 20 publications

References 85 publications

Pseudomonas fluorescens with Nitrogen-Fixing Function Facilitates Nitrogen Recovery in Reclaimed Coal Mining Soils

Pseudomonas fluorescens with Nitrogen-Fixing Function Facilitates Nitrogen Recovery in Reclaimed Coal Mining Soils

Advances in the Development of Biofertilizers and Biostimulants from Microalgae

Practice of Improving Saline–Alkali Soil with Bio-Humic Acid

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