Quinoa Response to Application of Phosphogypsum and Plant Growth-Promoting Rhizobacteria under Water Stress Associated with Salt-Affected Soil

El-Shamy, Moshira A.; Alshaal, Tarek; Hussein, Mohamed Hossam; Rady, Asmaa M. S.; Hafez, Emad M.; Alsohim, Abdullah S.; El-Moneim, Diaa Abd

doi:10.3390/plants11070872

Cited by 18 publications

(7 citation statements)

References 70 publications

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“…To increase plant resistance against stress factors such as salt-affected soil and low-quality irrigation water, the application of plant growth-promoting rhizobacteria (PGPR) is an environmentally, economically, and agronomically sound practice, which has already been stated by many authors [ 24 ]. It has been demonstrated that seed inoculation with multiple bacterial strains functions better than with a single bacterial strain.…”

Section: Introductionmentioning

confidence: 99%

Application of Silica Nanoparticles in Combination with Two Bacterial Strains Improves the Growth, Antioxidant Capacity and Production of Barley Irrigated with Saline Water in Salt-Affected Soil

Alharbi

Rashwan

Mohamed

et al. 2022

Plants

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Exploitation of low-quality water or irrigation of field crops with saline water in salt-affected soil is a critical worldwide challenge that rigorously influences agricultural productivity and sustainability, especially in arid and semiarid zones with limited freshwater resources. Therefore, we investigated a synergistic amendment strategy for salt-affected soil using a singular and combined application of plant growth-promoting rhizobacteria (PGPR at 950 g ha−1; Azotobacter chroococcum SARS 10 and Pseudomonas koreensis MG209738) and silica nanoparticles (SiNPs) at 500 mg L−1 to mitigate the detrimental impacts of irrigation with saline water on the growth, physiology, and productivity of barley (Hordum vulgare L.), along with soil attributes and nutrient uptake during 2019/2020 and 2020/2021. Our field trials showed that the combined application of PGPR and SiNPs significantly improved the soil physicochemical properties, mainly by reducing the soil exchangeable sodium percentage. Additionally, it considerably enhanced the microbiological counts (i.e., bacteria, azotobacter, and bacillus) and soil enzyme activity (i.e., urease and dehydrogenase) in both growing seasons compared with the control. The combined application of PGPR and SiNPs alleviated the detrimental impacts of saline water on barley plants grown in salt-affected soil compared to the single application of PGPR or SiNPs. The marked improvement was due to the combined application of PGPR and SiNPs, which enhanced the physiological properties (e.g., relative chlorophyll content (SPAD), relative water content (RWC), stomatal conductance, and K/Na ratio), enzyme activity (superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX)), and yield and yield-related traits and nutrient uptake (N, P, and K) of barley plants. Moreover, the Na+ content, hydrogen peroxide (H2O2) content, lipid peroxidation (MDA), electrolyte leakage (EL), and proline content were reduced upon the application of PGPR + SiNPs. These results could be important information for cultivating barley and other cereal crops in salt-affected soil under irrigation with saline water.

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Section: Introductionmentioning

confidence: 99%

Application of Silica Nanoparticles in Combination with Two Bacterial Strains Improves the Growth, Antioxidant Capacity and Production of Barley Irrigated with Saline Water in Salt-Affected Soil

Alharbi

Rashwan

Mohamed

et al. 2022

Plants

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“…Several studies have shown the positive effect of the combined treatment between microorganisms (AMF and/or bacteria) and PG on plant growth and nutrition. However, it is important to note that these previous studies utilized preselected strains of AMF [14][15][16] or bacteria 40,41 . In a 2020 study 17 , a co-inoculation of AMF and phosphate-solubilizing bacteria, along with the application of PG, was employed to assess their combined impact on plant growth, a similar approach was used in our study where we recorded a signi cant positive effect of carob consortium microbiota in combination with different doses of PG on the growth of carob plants.…”

Section: Discussionmentioning

confidence: 99%

Phosphogypsum’s impact on growth and nutrient acquisition in carob trees (Ceratonia siliqua L.) inoculated with native microbiota

Khassali,

Jadrane,

Geoffroy

et al. 2023

Preprint

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Phosphogypsum (PG) management is one of the major challenges of the phosphate industries in Morocco and worldwide. Its efficient management and valorization at a low-cost and without additional treatment are highly desirable. The purpose of this study is to evaluate the effects of Moroccan PG on the growth and development of carob tree (Ceratonia siliqua) in the presence and absence of its native microbiota. The analysis of the native microbiota revealed that the bacterial community was primarily dominated by Actinobacteria and Proteobacteria, while the fungal community was mainly composed of Ascomycota and Basidiomycota. In the absence of the consortium microbiota, the heights, root dry weights, shoot dry weights and leaflet numbers increased significantly (p < 0.05) in carob plants grown on soil substrates amended with PG at a ratio of 2 % compared to those grown without PG (0 %). Micronutrient (Zn, Fe, Cu, Mn, Ni and Co) contents also increased with PG doses in both the roots and leaves although toxic elements (As, Cd and Pb) were also detected, especially in carob plants grown at 10 and 20 % PG. Inoculation with consortium microbiota in combination with PG had similar beneficial effects on the different physiological parameters measured in the carob plants. The most significant growth was recorded in carob seedlings grown under PG doses of 1 and 2 % and these plants also displayed a better performance against toxic elements. In fact, toxic element concentrations in inoculated carob seedlings grown in PG amended soil were lower compared to non-inoculated plants and far below ranges considered phytotoxic for vascular plants for both inoculum treatments. Our results open up exciting perspectives for the valorization and more widespread use of phosphogypsum in combination with native microorganisms in crop cultivation particularly in regions with difficult soil conditions.

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“…Moreover, biofertilizer provides biodegradable substances, boosts soil stability and fertility, recycles nutrients, stimulates mycorrhiza symbiosis, mitigates soil contamination, develops bioremediation processes, and enhances biological control and antagonism of phytopathogenic organisms. Accordingly, applying biofertilizers increases plant growth, productivity, and fruit parameters and reduces mineral fertilization [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Integrated Use of Organic and Bio-fertilizers to Improve Yield and Fruit Quality of Olives Grown in Low Fertility Sandy Soil in an Arid Environment

Alowaiesh¹,

Gad²,

Ali³

2023

Phyton

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Olive productivity should be improved through stimulating nutrition, particularly under poor fertility soils. Consequently, the objective of this study was to assess the efficacy of applying organic and bio-fertilizers on the physiological growth, yield and fruit quality of olive trees under newly reclaimed poor-fertility sandy soil in an arid environment. During a field experiment carried out at El-Qantara, North Sinai, Egypt over two consecutive seasons (2019-2020 and 2020-2021), olive Kalamata trees were evaluated under three organic fertilizer treatments alone or in combination with three bio-fertilizers treatments. Organic fertilizer was applied as goat manure (16.8 kg/tree/year), or olive pomace (8.5 kg/tree/year) in mid-December of each season vs. untreated trees. The bio-fertilizers were applied as N-fixing bacteria (150 g/tree) was inculated in early March of each season, or amino acid mixture (1.5%) was applied three times, at 70% of full bloom, 21 days after full bloom, and a month later in comparison to a non-fertilized trees (control). The cultivar used was Kalamata, a dual-purpose cultivar for oil and table olives whose value increases when processed as table olives. The results indicated that the goat manure followed by olive pomace significantly enhanced photosynthetic pigments (chlorophyll a, b, and carotenoids), leaf mineral contents (N, P, K, Ca, Mg and Fe), tree canopy volume, number of flowers per inflorescence, number of inflorescences per shoot, initial fruit set, fruit retention. For fruit quality, fruit length and width, fruit weight, and total fruit yield was increased compared to the non-fertilized control. Likewise, The bio-fertilizer N-fixing bacteria followed by the amino acid mixture significantly improved all of the aforementioned parameters. Accordingly, it is recommended, both environmentally and economically to utilize organic and bio-fertizers, particularly goat manure combined with N-fixing bacteria, in low-fertility soil to sustain olive production as well as reducing mineral fertilization.

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Quinoa Response to Application of Phosphogypsum and Plant Growth-Promoting Rhizobacteria under Water Stress Associated with Salt-Affected Soil

Cited by 18 publications

References 70 publications

Application of Silica Nanoparticles in Combination with Two Bacterial Strains Improves the Growth, Antioxidant Capacity and Production of Barley Irrigated with Saline Water in Salt-Affected Soil

Application of Silica Nanoparticles in Combination with Two Bacterial Strains Improves the Growth, Antioxidant Capacity and Production of Barley Irrigated with Saline Water in Salt-Affected Soil

Phosphogypsum’s impact on growth and nutrient acquisition in carob trees (Ceratonia siliqua L.) inoculated with native microbiota

Integrated Use of Organic and Bio-fertilizers to Improve Yield and Fruit Quality of Olives Grown in Low Fertility Sandy Soil in an Arid Environment

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