Ecology of Nitrogen-Fixing Bacteria for Sustainable Development of Non-legume Crops

Dheeman, Shrivardhan; Maheshwari, Dinesh Kumar

doi:10.1007/978-981-19-4906-7_13

Cited by 4 publications

(1 citation statement)

References 73 publications

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“…Currently, in order to reduce environmental pollution, the importance of using new biotechnologies in crop cultivation, in particular, the introduction of microbial inoculants, including diazotrophs (bacteria and archaea) that fix gaseous nitrogen in the atmosphere into a more usable form such as ammonia, is increasing (Volkohon et al, 2020;Dheeman and Maheshwari, 2022). The potential of using diazotrophs as biofertilizers has been demonstrated for various non-legumes, including wheat (Bageshwar et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of inoculation with diazotrophs and treatment with solution of trace elements obtained by nanotechnology on wheat

KIRIZIY,

KOTS,

STASIK

et al. 2024

JCEA

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Currently, the importance of using new biotechnologies in crop cultivation, in particular the introduction of microbial inoculants and products obtained by nanotechnology, is increasing. However, the peculiarities of the interaction of microorganisms with plants when using such products have not been studied enough. The work aimed to study the effects of seed inoculation with a complex of rhizospheric diazotrophs (CRD) and treatment with a trace elements solution (TES) obtained by nanotechnology on CO 2 net assimilation (A n ) and yield of winter wheat. Plants were grown in a pot experiment with the following treatments: 1 -control; 2 -seeds inoculation with diazotrophs (CRD); 3 -seeds treatment with trace element solution (TES); 4 -seeds treatment with CRD + TES seeds treatment; 5 -TES plants treatment at the heading stage; 6 -CRD seeds inoculation + TES plants treatment at the heading stage. The obtained results showed that the nitrogenase activity in the wheat plants' rhizosphere under CRD inoculation was significantly higher by 25% on average compared to the control and treatments with only TES. For all treatments, A n at ripening stage exceeded the control level by 18-34%, and the plant grain productivity -by 17-27%. Significant correlations (r = 0.86-0.90) were found between the A n at the ripening stage and the grain weight from the whole plant. It was concluded that the optimal combination was CRD seeds inoculation + TES seeds treatment, where the highest main shoot and the whole plant grain productivity were observed. The seed treatment with the trace element solution was more effective in increasing the main shoot productivity, while the treatment at the heading stage was more effective for the whole plant's productivity.

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Section: Introductionmentioning

confidence: 99%

Effect of inoculation with diazotrophs and treatment with solution of trace elements obtained by nanotechnology on wheat

KIRIZIY,

KOTS,

STASIK

et al. 2024

JCEA

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The involvement of organic acids in soil fertility, plant health and environment sustainability

2022

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Inoculation of phosphate-solubilizing bacteria improves soil phosphorus mobilization and maize productivity

Beltran-Medina

Romero-Perdomo

Molano-Chavez

et al. 2023

Nutr Cycl Agroecosyst

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Phosphate-solubilizing bacteria represent a bioalternative in making soil-immobilized phosphorus (P) available to plants, and consequently improve agriculture sustainability and reduce nutrient pollution. In this study, we examined whether Rhizobium sp. B02 inoculation can affect the soil P fractions. Moreover, we investigated how inoculation influences the growth, physiological traits, and productivity of the maize crop. Field tests were carried out to evaluate the combined application of strain B02 and reduced doses of P fertilizer. Soil P fractionation was performed after crop harvesting, assessing the P dynamics. To study the plant response, samplings were carried out in three phenological stages—the vegetative stage of the 7 fully emerged leaves with leaf collars (V7), the vegetative stage of the tassel (VT), and the reproductive stage of physiological maturity (R6). Using 50% of P fertilizer recommended, the strain inoculation increased the labile inorganic P fraction by 14% compared to the control treatment at the same dose, indicating that it favored the Pi mobility. Under these same conditions in the V7 and VT phenological stages, the inoculation significantly improved shoot length (28 and 3%) and shoot dry weight (9.8 and 12%). B02 inoculation increased grain yield by 696 kg ha−1 using 50% of the recommended rate of P fertilizer, phenocopying the complete P fertilization treatment without inoculation. Therefore, Rhizobium sp. B02 inoculation replaced 50% of P fertilizer in maize and increased the soil P availability.

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Ecology of Nitrogen-Fixing Bacteria for Sustainable Development of Non-legume Crops

Cited by 4 publications

References 73 publications

Effect of inoculation with diazotrophs and treatment with solution of trace elements obtained by nanotechnology on wheat

Effect of inoculation with diazotrophs and treatment with solution of trace elements obtained by nanotechnology on wheat

The involvement of organic acids in soil fertility, plant health and environment sustainability

Inoculation of phosphate-solubilizing bacteria improves soil phosphorus mobilization and maize productivity

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