Insight into soil nitrogen and phosphorus availability and agricultural sustainability by plant growth-promoting rhizobacteria

Zeng, Qingwei; Ding, Xiaolei; Wang, Jiangchuan; Xuejiao, Han; Iqbal, Hafiz M.N.; Bilal, Muhammad

doi:10.1007/s11356-022-20399-4

Cited by 59 publications

(26 citation statements)

References 220 publications

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“…Application of chemical fertilizers is the most common agricultural practice to improve soil nutrients and subsequently increase crop yield. However, increasing production costs, exhaustion of mineral sources, consumption of energy, environmental risks, destroying the soil structure and breaking the soil's microecosystem, and groundwater pollution are the problems associated with the excess use of chemical fertilizers [5]. An important alternative soil management to reduce the harmful effects of chemical fertilizers is the use of biological approaches, such biofertilizers [6].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Plant Growth-Promoting Rhizobacteria (PGPR) and Chemical Fertilizers on Quantitative and Qualitative Characteristics of Rainfed Wheat

et al. 2022

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The indiscriminate use of hazardous chemical fertilizers can be reduced by applying eco-friendly smart farming technologies, such as biofertilizers. The effects of five different types of plant growth-promoting rhizobacteria (PGPR), including Fla-wheat (F), Barvar-2 (B), Nitroxin (N1), Nitrokara (N2), and SWRI, and their integration with chemical fertilizers (50% and/or 100% need-based N, P, and Zn) on the quantitative and qualitative traits of a rainfed wheat cultivar were investigated. Field experiments, in the form of randomized complete block design (RCBD) with four replications, were conducted at the Qamloo Dryland Agricultural Research Station in Kurdistan Province, Iran, in three cropping seasons (2016–2017, 2017–2018, and 2018–2019). All the investigated characteristics of rainfed wheat were significantly affected by the integrated application of PGPR chemical fertilizers. The grain yield of treated plants with F, B, N1, and N2 PGPR plus 50% of need-based chemical fertilizers was increased by 28%, 28%, 37%, and 33%, respectively, compared with the noninoculated control. Compared with the noninoculated control, the grain protein content was increased by 0.54%, 0.88%, and 0.34% through the integrated application of F, N1, and N2 PGPR plus 50% of need-based chemical fertilizers, respectively. A combination of Nitroxin PGPR and 100% of need-based chemical fertilizers was the best treatment to increase the grain yield (56%) and grain protein content (1%) of the Azar-2 rainfed wheat cultivar. The results of this 3-year field study showed that the integrated nutrient management of PGPR-need-based N, P, and Zn chemical fertilizers can be considered a crop management tactic to increase the yield and quality of rainfed wheat and reduce chemical fertilization and subsequent environmental pollution and could be useful in terms of sustainable rainfed crop production.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Plant Growth-Promoting Rhizobacteria (PGPR) and Chemical Fertilizers on Quantitative and Qualitative Characteristics of Rainfed Wheat

et al. 2022

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“…However, the challenges to a successful BNF regimen in Africa include the low adoption by farmers, and how to develop microbial inoculants with stable shelf lives. Other factors Like BNF, phosphate-solubilizing bacteria (PSB) have been well studied for their ability to solubilize P from rock phosphate with otherwise low solubility that limits direct use in agriculture as fertilizer reviewed in (119,120). PSBs such as Pseudomonas, Bacillus and Rhizobium, among others, harness their ability to produce and release gluconic acid and/or phosphatases into the soil to solubilize rock phosphate or chemically fixed insoluble phosphate forms.…”

Section: Micronutrients For Biofortification Towards Human Nutrition ...mentioning

confidence: 99%

Fertilizers for food and nutrition security in sub-Saharan Africa: An overview of soil health implications

et al. 2023

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Sub-Saharan Africa (SSA) faces chronic food insecurity associated with soil degradation and the peculiar aftermath of climate change and exacerbated by rising population and historically poor agricultural practices. Notably, use of mineral fertilizers has the potential to counteract soil degradation in SSA; it drives an increased agricultural production required to feed the rising population while sustaining the quality and health of soils. However, limited financial resources deprive SSA of the promise of fertilizers, wherein application rates are historically low, and regimes are characterized by unbalanced nutrient composition and poor fertilizer quality. Although current global fertilizer use is generally characterized by low efficiency, SSA is most affected due to the already low usage and the quality of available fertilizer products. About 70% of fertilizer-nitrogen is lost through unregulated transformation to ammonia, nitrous oxide, and nitrate that are either volatilized or emitted into the atmosphere or leached into water bodies. Similarly, the preponderance of fertilizer-phosphorus is lost via run-off and leaching, unavailing it to plants while overloading streams and rivers and, together with nitrate, causing eutrophication. These environmental problems are accentuated in SSA where fertilizer quantity and quality issues are already a limiting factor. Notably, recent advances happening outside of SSA indicate that nutrients, when strategically formulated, such as by nano packaging, (bio)polymer encapsulation, and tunable to respond to environmental cues, can provide multiple outcomes, particularly, healthy soils with higher productivity. Therefore, presumably, a proper synthesis of the gamut of soil properties influencing plant nutrient release and availability, options for plant exposure and uptake is critical for realizing these benefits in SSA. Despite these possibilities, there is a lack of deeper context on fertilizer-related issues as they affect food and nutrition security and the health of soils in SSA. This paper provides an overview of the fertilizer-nutrient and associated agronomic, food insecurity and soil environmental challenges and opportunities, which though not exclusive to SSA per se, can be reasoned with the peculiarity of the region. This provides the impetus to increase fertilizer use efficiency, improve soil and environmental health, sustainable crop production, and food and nutrition security in SSA.

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“…An environmentally friendly alternative to improve crop production is using plant growth‐promoting rhizobacteria (PGPR) (Vimal et al, 2017; Zeng et al, 2022). Moreover, the inoculation with PGPR reduces the negative symptoms effects of abiotic stresses on plants (Asif et al, 2019; Della Mónica et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Melatonin production by rhizobacteria native strains: Towards sustainable plant growth promotion strategies

Jofré

Mammana

Appiolaza

et al. 2023

Physiologia Plantarum

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In the current context of climate change and water deficit, the selection of native beneficial microorganisms, such as plant growth‐promoting rhizobacteria (PGPR), has become a trend for sustainable agriculture due to their ability to improve plant–bacteria interaction with a minimal adverse effect on the soil microbiota compared to commercial PGPR. Until now, the production of phytohormones like melatonin (MT) by native PGPR and their effect on endogenous MT levels in plants have been poorly studied. MT is a ubiquitous phytohormone that protects plants against biotic and abiotic stress by improving the tolerance of stressed plants. In this work, the production of MT by two native PGPR, Enterobacter 64S1 and Pseudomonas 42P4, was evaluated and both PGPR were applied in Arabidopsis thaliana plants grown under drought conditions to assess the inoculation effects. Parameters such as plant growth, leaf cellular membrane damage, leaf protective compounds, and endogenous MT levels under drought and irrigation conditions were evaluated. The results demonstrated that the native strains Pseudomonas 42P4 and Enterobacter 64S1 produce MT and increase the content of endogenous MT in A. thaliana plants under drought. These native strains improved the tolerance of arabidopsis plants to drought by preventing oxidative and membrane damages and improving plant growth. To the best of our knowledge, this is the first report on MT production by native PGPR and their effects on endogenous MT levels in arabidopsis plants, setting the bases to elucidate the role of native PGPR on water deficit conditions.

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Insight into soil nitrogen and phosphorus availability and agricultural sustainability by plant growth-promoting rhizobacteria

Cited by 59 publications

References 220 publications

Comparative Analysis of Plant Growth-Promoting Rhizobacteria (PGPR) and Chemical Fertilizers on Quantitative and Qualitative Characteristics of Rainfed Wheat

Comparative Analysis of Plant Growth-Promoting Rhizobacteria (PGPR) and Chemical Fertilizers on Quantitative and Qualitative Characteristics of Rainfed Wheat

Fertilizers for food and nutrition security in sub-Saharan Africa: An overview of soil health implications

Melatonin production by rhizobacteria native strains: Towards sustainable plant growth promotion strategies

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