Biofertilizers and Their Role in Sustainable Agriculture

Kaur, Pinderpal; Purewal, Sukhvinder Singh

doi:10.1007/978-3-030-18933-4_12

Cited by 30 publications

(18 citation statements)

References 70 publications

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“…Sharma et al, 2013;Zaidi et al, 2009). However, they are known to be more metabolically active and better P solubilizers in plant rhizospheres (P. Kaur & Purewal, 2019;Rafi et al, 2019;Vessey, 2003). (Suleiman et al, 2019) Chilli (Capsicum annum L.) Pseudomonas aeruginosa (Linu et al, 2019) B. megaterium, P. putida andP.…”

Section: The Diversity Of P Solubilizing Rhizbacteriamentioning

confidence: 99%

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Phosphate-Solubilizing Rhizobacteria: Diversity, Mechanisms, and Prospects in Sustainable Agriculture

Aloo¹,

Makumba²,

Mbega³

2020

Preprint

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Phosphorus (P) is the second-most important element after nitrogen that is required for plant growth. Although this element is abundant in most soils, it is rarely available in plant-accessible forms since most of it normally exists in soil in insoluble forms such as phosphates. In conventional agriculture, P is normally supplied as chemical fertilizer to satisfy plant P requirements. This, to a large extent, boosts plant production. However, chemical fertilizers are costly, have a huge carbon footprint, and are environmentally-unsustainable owing to the high energy requirements during their synthesis. Besides, P-containing agricultural run-offs contribute hugely to the eutrophication of water bodies and environmental degradation. Moreover, plants can consume only a small amount of chemically-supplied P since between 75 and 90% of this form of P normally get precipitated into complexes and rapidly become fixed in soil. These issues and concerns necessitate research into alternative and viable ways of supplying P to plants. Rhizobacteria have for decades been investigated in vivo and in planta as suitable tools in sustainable agriculture due to the plant-growth-promoting activities such as nutrients’ solubilization, nitrogen fixation, and production of phytohormones. Although a lot of research has been done on different nutrients-solubilizing rhizobacteria and their potential in sustainable agriculture, their mechanisms of action and prospects in sustainable agriculture remain to be fully understood. This review particularly focuses on the P solubilizing rhizobacteria and evaluates their diversity, mechanisms of action, and prospects in sustainable agriculture based on the present and future scenario of their application. Such information is useful in determining their potential and evaluating their prospects in promoting sustainable agricultural systems.

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Section: The Diversity Of P Solubilizing Rhizbacteriamentioning

confidence: 99%

“…Mesorhizobium (Oteino et al, 2015), Aeromonas, Mycobacterium, Acetobacter, Corynebacterium, Gluconacetobacter, Achromobacter, Escherichia and Ralstonia, have also been associated with P solubilization and the subsequent increase in plant growth and yield (P. Kaur & Purewal, 2019).…”

Section: The Diversity Of P Solubilizing Rhizbacteriamentioning

confidence: 99%

Phosphate-Solubilizing Rhizobacteria: Diversity, Mechanisms, and Prospects in Sustainable Agriculture

Aloo¹,

Makumba²,

Mbega³

2020

Preprint

View full text Add to dashboard Cite

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“…The low effect of chemical methods to control various soil-borne pathogens, as well as their economic cost on one hand and environmental concerns on the other, have made achieving healthier and cheaper methods a serious challenge for researchers. The use of biofertilizers to reach sustainable agriculture and expand the production of non-toxic products has been proposed as an alternative to chemical fertilizers to increase soil fertility in agricultural production [5].…”

Section: Introductionmentioning

confidence: 99%

A Novel Route for Double-Layered Encapsulation of Streptomyces fulvissimus Uts22 by Alginate–Arabic Gum for Controlling of Pythium aphanidermatum in Cucumber

2022

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Damping-off disease due to Pythium aphanidermatum is one of the most harmful diseases of cucumber. One of the critical issues in the field of biological control is the establishment of a link between the beneficial bacteria screened in the laboratory and its industrial application. Therefore, when developing biocontrol agents, it is necessary to study the optimization of mass production conditions and to select a suitable carrier for their final formulation. In this study, an attempt was made to provide a suitable formulation for a Streptomyces fulvissimus Uts22 strain based on alginate–Arabic gum and nanoparticles (SiO2 and TiO2) with a layer-by-layer technique. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) studies showed that when Arabic gum was added to the composition, an electrostatic interaction occurred between alginate and Arabic gum. The scanning electron microscope image of beads show a cubic shape and good dispersion of microcapsules. The encapsulation efficiency in the prepared formulation was reported to be 94%. The maximum release of bacteria from the capsule was recorded on the 35th day of storage, about 109 CFU/gr. The greenhouse experiments showed that encapsulated bacteria resulted in a 95% reduction in damping-off disease of cucumber and showed more potential effects on increasing plant growth traits than free bacteria. This encapsulation strategy can be considered as a suitable alternative for future applications in the agricultural field.

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“…In context of soil fertility management, biofertilizers is emerging as an economically attractive and ecologically sound means of fertilization (Kaur and Purewal, 2019). Besides improving soil health, biofertilizer also reduce the amount of chemical fertilizer.…”

Section: Introductionmentioning

confidence: 99%

Maximization of Nutrient use Efficiency and Yield through Application of Biofertilizers in Field Pea (Pisum sativum L.)

Singh¹,

Singh²,

Kumar³

et al. 2021

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Background: The negative effects of continuous use of chemical fertilizers on soil microbiology and agricultural sustainability are well established. The chemical fertilizers load in environment can be minimized by combined application of fertilizers and biofertilizers in crops like pulses which require less fertilizer-N and respond well to the use of biofertilizers. The objectives of the study were to see the effect of different biofertilizers in reduction of total fertilizer use and the response of field pea to combined application of chemical- and bio-fertilizers in terms of growth, yield and NUE.Methods: A field experiment was conducted during 2 consecutive rabi season of 2017-18 and 2018-19 at KVK, Chhatarpur, Jabalpur (Madhya Pradesh), India to evaluate the application of fertilizers and biofertilizers on growth parameter, nodulation, nutrient content and uptake, nutrient use efficiency, yield and economics of field pea. The experiment was laid out in randomized block design with five treatments in four replications. Treatments comprised of Control, Recommended dose (RD) of NPK (20: 60: 20 kg N, P2O5 and K2O/ha, respectively) (RDNPK), RDNPK + seed inoculation with Rhizobium @ 20 g/kg seed (RDNPK +R), RDNPK+R+phosphate solubilizing bacteria @ 20 g each/kg seed (RDNPK + R+PSB) and 75% of RDNPK + R+ PSB + potash solubilizing bacteria @ 5 kg/ha (75% RDNPK+ R+PSB+KSB). All other practices followed as per recommendation for the region and different observations and indices were recorded by following standard procedures.Conclusion: The application of 75% RDNPK+R+PSB+KSB was found best treatment among all others which resulted in highest grain yield (1682 kg/ha), protein content (23.1%), protein yield (388.5 kg/ha), net return (Rs. 46 623/ha) and B:C ratio (2.94). The nutrient use efficiency such as Partial Factor Productivity (PFP), Agronomic efficiency (AE), Physiological Efficiency (PE) and Economic Efficiency (EE) were also higher under combined application of fertilizers and biofertilizers. Thus, 75% RDNPK along with combined application of biofertilizers (R+PSB+KSB) may be applied for higher yield and return from field pea.

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Biofertilizers and Their Role in Sustainable Agriculture

Cited by 30 publications

References 70 publications

Phosphate-Solubilizing Rhizobacteria: Diversity, Mechanisms, and Prospects in Sustainable Agriculture

Phosphate-Solubilizing Rhizobacteria: Diversity, Mechanisms, and Prospects in Sustainable Agriculture

A Novel Route for Double-Layered Encapsulation of Streptomyces fulvissimus Uts22 by Alginate–Arabic Gum for Controlling of Pythium aphanidermatum in Cucumber

Maximization of Nutrient use Efficiency and Yield through Application of Biofertilizers in Field Pea (Pisum sativum L.)

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