Microbial Inoculants as Biofertilizer

Suyal, Deep Chandra; Soni, Ravindra; Sai, Santosh; Goel, Reeta

doi:10.1007/978-81-322-2647-5_18

Cited by 34 publications

(19 citation statements)

References 25 publications

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“…With this industrialized system, food is produced at reduced costs and farmers therefore get higher profits from their farm but serious concerns were being raised about health risks resulting from residues in drinking water and food and from occupational exposure ( Alori and Fawole, 2017b ). Suyal et al (2016) , reiterated that heavy doses of chemical fertilizer, although leading to self-reliance in food production, causes harmful impacts on living organisms and also depreciate the environment. The chemical contaminates the food produced and goes further to alter the normal body functions of the consumer ( Sayre, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

“…Microbial inoculants are environmentally friendly and are a potential alternative to chemical fertilizers and pesticides ( Babalola and Glick, 2012 ). They are composed of active strains of microorganisms which directly or indirectly stimulate microbial activity and hence improve mobility of nutrients from soil ( Suyal et al, 2016 ). They could be phyto-stimulants, bio-fertilizers or microbial bio-control agents ( Alori et al, 2017b ).…”

Section: Introductionmentioning

confidence: 99%

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Microbial Inoculants for Improving Crop Quality and Human Health in Africa

2018

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Current agricultural practices depend heavily on chemical inputs (such as fertilizers, pesticides, herbicides, etc.) which, all things being equal cause a deleterious effect on the nutritional value of farm product and health of farm workers and consumers. Excessive and indiscriminate use of these chemicals have resulted in food contamination, weed and disease resistance and negative environmental outcomes which together have a significant impact on human health. Application of these chemical inputs promotes the accumulation of toxic compounds in soils. Chemical compounds are absorbed by most crops from soil. Several synthetic fertilizers contain acid radicals, such as hydrochloride and sulfuric radicals, and hence increase the soil acidity and adversely affect soil and plant health. Highly recalcitrant compounds can also be absorbed by some plants. Continuous consumption of such crops can lead to systematic disorders in humans. Quite a number of pesticides and herbicides have carcinogenicity potential. The increasing awareness of health challenges as a result of consumption of poor quality crops has led to a quest for new and improved technologies of improving both the quantity and quality of crop without jeopardizing human health. A reliable alternative to the use of chemical inputs is microbial inoculants that can act as biofertilizers, bioherbicide, biopesticides, and biocontrol agents. Microorganisms are able to carry out the plant growth promotion, pest and disease and weed control. Microbial inoculants are beneficiary microorganisms applied to either the soil or the plant in order to improve productivity and crop health. Microbial inoculants are natural-based products being widely used to control pests and improve the quality of the soil and crop, and hence human health. Microbial inoculants involve a blend of microorganisms that work with the soil and the soil life to improve soil fertility and health and by extension improve human health. Microbial inoculants have the ability to minimize the negative impact of chemical input and consequently increase the quantity and quality of farm produce. Microbial inoculants are environmental-friendly and deliver plant nutrients to plants in a more sustainable manner. Microbial inoculants can help reduce chemical fertilizer application. Microbial inoculants could include bacteria, fungi and algae. This research summarizes the impact of agricultural chemical inputs on human health. The contribution of microbial inoculants in sustainable maintenance of human health will be expatiated. Advances in microbial inoculants and technology and strategies to explore this natural, user friendly biological resource for sustainable maintenance of plant health will be discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbial Inoculants for Improving Crop Quality and Human Health in Africa

2018

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“…However, leaching and poor management of chemical fertiliser have contributed to environmental pollution, soil quality degradation, agronomic inefficiencies and economic losses of farmers (Savci, 2012). Considering the adverse effects of chemical fertiliser application, more sustainable, cost-effective and eco-friendly techniques are being explored for improving crop productivity (Gliessman, 2016;Lesueur et al, 2016;Suyal et al, 2016). A potential solution to this challenge is the use of beneficial microbes such as bacteria, fungi and blue-green algae as a method for improving agricultural productivity.…”

Section: Introductionmentioning

confidence: 99%

“…Microbial-based formulations such as biofertilisers are now widely employed in sustainable agriculture (Lesueur et al, 2016;Majeed et al, 2015). Biofertilisers are ready-to-use preparations that comprise beneficial microbes, which when applied to plant surfaces or roots and soil cause increase in crop yield by improving the supply and availability of essential plant nutrients and growth-promoting substances (Raimi et al, 2017;Suyal et al, 2016;Vessey, 2003). In addition, the use of biofertiliser generates increased revenue amongst farmers through improved crop productivity and reduced use of highly-priced agrochemical inputs, which is a major objective of sustainable agriculture (Raimi et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Insights into the microbial composition and potential efficiency of selected commercial biofertilisers

Raimi

Roopnarain

Chirima

et al. 2020

Heliyon

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This study investigated 13-commercial biofertilisers for their microbial contents and potential functional capabilities using a culture-based approach. Isolates obtained were identified by sequencing the partial I6S rRNA gene and ITS 1 and 2 regions and screened for plant growth-promoting capabilities. A total of 58 bacterial and three fungal isolates were obtained from all biofertilisers, with major genera being Bacillus, Rhizobium, Pseudomonas, Candida and Aspergillus. Five of the biofertilisers had the microbes (all or some) listed in the label detected while eight products had none detected. All the products had more microbes than that declared in the labels, suggesting the presence of potential contaminants. Generally, all the identified microbes, including the potential contaminants, had different beneficial capabilities. Approximately 40% of the isolates showed potential for nitrogenfixation, while 27% exhibited high phosphate-solubilisation ability. Additionally, 87% of the isolates produced indole acetic acid in the range of 0.1-114.4 μg/mL. High levels of siderophore production were mainly observed amongst Bacillus and Pseudomonas genera. The potential of the microbes, including those not listed in the label, to fix nitrogen and produce acid phosphatase, indole acetic acid and siderophore, was highest in four products. This suggests the products have multiple functional abilities in improving crop productivity. However, other qualities of biofertiliser, such as viable cell count and level of contamination, must always be within the acceptable standards. This will guarantee high product quality as well as efficiency when applied in the field. Overall, the results show that there is a high correlation between microbial compositions and potential capability of biofertilisers for plant-growth promotion.

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“…Other Dutch scientists [13,14] recognized the concept of BNF (biological nitrogen fixation) and later on Noble F. and Hiltner first time formed inoculum of rhizobia as biofertilzer called Nitragin during 1896 while some other scientists contributed in the development of commercial biofertilizer and founded the first stone of sustainable agriculture [12,15]. It is comprised of living microbes such as bacteria, blue-green algae and fungi when applied as biofertilizer on seeds/plant roots or directly mixed in the soil they form colonization interiorly and/or exteriorly and make nutrients available to plants and also secreted some plant growth promoting substances leading to improve soil fertility and increase crop yield [16][17][18]. The use of nitrogen fixing biofertilizer can increase yield of leguminous crops and the bacteria used in such biofertilzer might be rhizobium and bradyrhizobium [19].…”

Section: Introductionmentioning

confidence: 99%

Biozote-N performance in peas production under the influence of compost application Gul Muhammad Panazai

Panazai¹

2019

PAB

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The major challenge faced by the smallholder farmers of Balochistan is low soil fertility and productivity. Recently, more emphasis is being inflicted on sustainable agriculture and the use of biofertilizer is considered as one of the main driving factors for it. For this purpose, a field study was carried out at experimental station of Agriculture Research Institute Sariab Quetta during 2015-16. The Biozote-N was investigated in five set of treatments including T1 = control (Recommended dose of PK Fertilizer), T2 = Biozote-N, T3 = Biozote-N + T1, T4 = Compost @ 5 t ha-1 + T1 and T5 = Biozote-N +T4 which based in Randomized Complete Block Design with four replications. The results showed that Biozote-N in combination with compost and recommended PK fertilizer (T5) `produced maximum pod length (6.10 cm), pod yield (3.40 ton ha-1), number of nodules plant-1 (457), number of effective nodules plant-1 (221), dry root biomass (4.72 g plant-1) and shoot dry biomass (23.60 g plant-1 followed by the treatment having compost @ 5 t ha-1 + recommended PK fertilizer (T4) along with greater leaf macro and micro nutrients concentration. There was highly significant correlation among pea traits and leaf nutrient concentration which demonstrate that improvement in pea growth and yield was due to increased nutrient accumulation. Consequently, it is suggested that the integration of Biozote-N with compost and inorganic fertilizer have improved pea crop performance that can further be tested in the field at various locations of the province and is proved as good source of biofertilizer.

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Microbial Inoculants as Biofertilizer

Cited by 34 publications

References 25 publications

Microbial Inoculants for Improving Crop Quality and Human Health in Africa

Microbial Inoculants for Improving Crop Quality and Human Health in Africa

Insights into the microbial composition and potential efficiency of selected commercial biofertilisers

Biozote-N performance in peas production under the influence of compost application Gul Muhammad Panazai

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