Phosphate Solubilizing Micro-organisms as Biofertilizer PDF Download

Author: A. C. Gaur
Publisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 206

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Author: Mohammad Saghir Khan
Publisher: Springer
ISBN: 3319082167
Category : Science
Languages : en
Pages : 307

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Book Description
This book provides a comprehensive description of phosphate solubilizing microorganisms and highlights methods for the use of microphos in different crop production systems. The focus is on understanding both the basic and applied aspects of phosphate solubilizing microorganisms and how phosphorus-deficient soils can be transformed into phosphorus-rich ones by applying phosphate solubilizing microorganisms. The interaction of rhizosphere phosphate solubilizing microorganisms and environmental variables, as well as their importance in the production of crops such as legumes, cereals, vegetables etc. are discussed and considered. The use of cold-tolerant phosphate solubilizing microorganisms to enhance crop productivity in mountainous regions is examined, as are the ecological diversity and biotechnological implications of phosphate solubilizing microorganisms. Lastly, the role of phosphate solubilizing microorganisms in aerobic rice cultivation is highlighted. This volume offers a broad overview of plant disease management using phosphate solubilizing microbes and presents strategies for the management of cultivated crops. It will therefore be of special interest to both academics and professionals working in the fields of microbiology, soil microbiology, biotechnology and agronomy, as well as the plant protection sciences. This timely reference book provides an essential and comprehensive source of material, as it includes recent findings on phosphate solubilizing microorganisms and their role in crop production.

Author: Inamuddin
Publisher: John Wiley & Sons
ISBN: 1119724678
Category : Technology & Engineering
Languages : en
Pages : 690

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Great attention has been paid to reduce the use of conventional chemical fertilizers harming living beings through food chain supplements from the soil environment. Therefore, it is necessary to develop alternative sustainable fertilizers to enhance soil sustainability and agriculture productivity. Biofertilizers are the substance that contains microorganisms (bacteria, algae, and fungi) living or latent cells that can enrich the soil quality with nitrogen, phosphorous, potassium, organic matter, etc. They are a cost-effective, biodegradable, and renewable source of plant nutrients/supplements to improve the soil-health properties. Biofertilizers emerge as an attractive alternative to chemical fertilizers, and as a promising cost-effective technology for eco-friendly agriculture and a sustainable environment that holds microorganisms which enhance the soil nutrients' solubility leading a raise in its fertility, stimulates crop growth and healthy food safety. This book provides in-depth knowledge about history and fundamentals to advances biofertilizers, including latest reviews, challenges, and future perspectives. It covers fabrication approaches, and various types of biofertilizers and their applications in agriculture, environment, forestry and industrial sectors. Also, organic farming, quality control, quality assurance, food safety and case-studies of biofertilizers are briefly discussed. Biofertilizers' physical properties, affecting factors, impact, and industry profiles in the market are well addressed. This book is an essential guide for farmers, agrochemists, environmental engineers, scientists, students, and faculty who would like to understand the science behind the sustainable fertilizers, soil chemistry and agroecology.

Author: Vijay Singh Meena
Publisher: Springer
ISBN: 813222776X
Category : Technology & Engineering
Languages : en
Pages : 338

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The potassium solubilizing microorganisms (KSMs) are a rhizospheric microorganism which solubilizes the insoluble potassium (K) to soluble forms of K for plant growth and yield. K-solubilization is carried out by a large number of saprophytic bacteria (Bacillus mucilaginosus, B. edaphicus, B. circulans, Acidothiobacillus ferrooxidans, Paenibacillus spp.) and fungal strains (Aspergillus spp. and Aspergillus terreus). Major amounts of K containing minerals (muscovite, orthoclase, biotite, feldspar, illite, mica) are present in the soil as a fixed form which is not directly taken up by the plant. Nowadays most of the farmers use injudicious application of chemical fertilizers for achieving maximum productivity. However, the KSMs are most important microorganisms for solubilizing fixed form of K in soil system. The KSMs are an indigenous rhizospheric microorganism which show effective interaction between soil-plant systems. The main mechanism of KSMs is acidolysis, chelation, exchange reactions, complexolysis and production of organic acid. According to the literature, currently negligible use of potassium fertilizer as chemical form has been recorded in agriculture for enhancing crop yield. Most of the farmers use only nitrogen and phosphorus and not the K fertilizer due to unawareness that the problem of K deficiency occurs in rhizospheric soils. The K fertilizer is also costly as compared to other chemical fertilizers.

Author: E. Velazquez
Publisher: Springer Science & Business Media
ISBN: 1402057652
Category : Technology & Engineering
Languages : en
Pages : 352

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In 2002, sixty international specialists met to discuss problems of high P-unavailability as a soil nutrient for crops, and the hazards of increased phosphate input to aquatic habitats from industrial and mining activities, sewage disposal, detergents, and other sources. Among the presentations were updated solutions to enhance P-uptake by plants, bioremediation potential in the rehabilitation of ecosystems, taxonomic characterization interactions with mycorrizae, the physiological and molecular basis of PSM, and more.

Author: Kushaldeep Kaur Sodhi
Publisher: LAP Lambert Academic Publishing
ISBN: 9783846539118
Category :
Languages : de
Pages : 64

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Book Description
In comparison to major nutrients, phosphorus is by far the least mobile and available to plants. Most developing countries economic stability depends on agricultural yield, hence to feed rapidly increasing population excessive use of chemical fertilizers is there. As a solution PSM are employed that renders inorganic phosphorus to be available to plants in soluble form and mineralize organic phosphorus, (eco friendly) limiting the use of fertilizers. The solubilization of phosphatic compounds by naturally abundant PSM is studied under in vitro conditions. We have collected soil samples from different agricultural crops growing near by our campus processed all the samples for microbiological analysis within 24 hours. We have isolated large number of phosphate solublising colonies selected efficient phosphate solubilizers with high solubilization index for futher analysis and scaled down to few good phosphate solubilizers with high phosphatase activity. A nursery experiment was undertaken to evaluate the effectiveness of these strains in improving the growth and phosphorus level in maize seedlings. This review presents utilization of PSM with a view to foster sustainable agriculture.

Author: Mohammad Saghir Khan
Publisher: Springer Science & Business Media
ISBN: 364201979X
Category : Technology & Engineering
Languages : en
Pages : 371

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Book Description
With an ever-increasing human population, the demand placed upon the agriculture sector to supply more food is one of the greatest challenges for the agrarian community. In order to meet this challenge, environmentally unfriendly agroch- icals have played a key role in the green revolution and are even today commonly recommended to circumvent nutrient de?ciencies of the soils. The use of ag- chemicals is, though, a major factor for improvement of plant production; it causes a profound deteriorating effect on soil health (soil fertility) and in turn negatively affects the productivity and sustainability of crops. Concern over disturbance to the microbial diversity and consequently soil fertility (as these microbes are involved in biogeochemical processes), as well as economic constraints, have prompted fun- mental and applied research to look for new agro-biotechnologies that can ensure competitive yields by providing suf?ciently not only essential nutrients to the plants but also help to protect the health of soils by mitigating the toxic effects of certain pollutants. In this regard, the role of naturally abundant yet functionally fully unexplored microorganisms such as biofertilizers assume a special signi?cance in the context of supplementing plant nutrients, cost and environmental impact under both conventional practices and derelict environments. Therefore, current devel- ments in sustainability involve a rational exploitation of soil microbial communities and the use of inexpensive, though less bio-available, sources of plant nutrients, which may be made available to plants by microbially-mediated processes.

Author: Bhoopander Giri
Publisher: Springer
ISBN: 3030189333
Category : Science
Languages : en
Pages : 544

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Book Description
This book provides a comprehensive overview of the benefits of biofertilizers as an alternative to chemical fertilizers and pesticides. Agricultural production has increased massively over the last century due to increased use of chemical fertilizers and pesticides, but these gains have come at a price. The chemicals are not only expensive; they also reduce microbial activity in agricultural soils and accumulate in the food chain, with potentially harmful effects for humans. Accordingly, it is high time to explore alternatives and to find solutions to overcome our increasing dependence on these chemicals. Biofertilizers, which consist of plant remains, organic matter and microorganisms, might offer an alternative. They are natural, organic, biodegradable, eco-friendly and cost-effective. Further, the microbes present in the biofertilizers are important, because they produce nutrients required for plant growth (e.g., nitrogen, phosphorus, potassium), as well as substances essential for plant growth and development (e.g., auxins and cytokinins). Biofertilizers also improve the physical properties, fertility and productivity of soil, reducing the need for chemical fertilizers while maintaining high crop yield. This makes biofertilizers a powerful tool for sustainable agriculture and a sustainable environment. The book covers the latest research on biofertilizers, ranging from beneficial fungal, bacterial and algal inoculants; to microbes for bioremediation, wastewater treatment; and recycling of biodegradable municipal, agricultural and industrial waste; as well as biocontrol agents and bio-pesticides. As such, it offers a valuable resource for researchers, academics and students in the broad fields of microbiology and agriculture.

Author: Vivek Sharma
Publisher: Academic Press
ISBN: 0128184698
Category :
Languages : en
Pages : 454

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Book Description
Molecular Aspects of Plant Beneficial Microbes in Agriculture explores their diverse interactions, including the pathogenic and symbiotic relationship which leads to either a decrease or increase in crop productivity. Focusing on these environmentally-friendly approaches, the book explores their potential in changing climatic conditions. It presents the exploration and regulation of beneficial microbes in offering sustainable and alternative solutions to the use of chemicals in agriculture. The beneficial microbes presented here are capable of contributing to nutrient balance, growth regulators, suppressing pathogens, orchestrating immune response and improving crop performance. The book also offers insights into the advancements in DNA technology and bioinformatic approaches which have provided in-depth knowledge about the molecular arsenal involved in mineral uptake, nitrogen fixation, growth promotion and biocontrol attributes.

Author: Da Tian
Publisher: Frontiers Media SA
ISBN: 2832532551
Category : Technology & Engineering
Languages : en
Pages : 64

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Book Description
Phosphate Solubilizing Microorganisms (PSMs) are typical environmental microbes, which can transform insoluble phosphate into plant absorbable forms in soil. The metabolites of organic acid by PSM usually dominate the insoluble phosphate dissolution and phosphorus transformation in soil. The tricarboxylic acid cycle (TCA) is the main metabolic pathway of organic acids secretion by PSM. Genetic, enzyme, and fermentation engineering technology can significantly affect the TCA pathway, changing the type and quantity of organic acid secretion, hence greatly affecting the application of PSM. In the case of fungi, the enhanced oxalic acid secretion is conducive to lead remediation, while food fermentation engineering needs more citric acid. In addition, the above biotechnology also greatly impacts other metabolites of PSMs, such as phosphatases, degrading enzymes and volatile organic compounds, etc. Therefore, promoting the capacity of metabolism via biotechnology is a current challenge for PSM in the pathway of application in food fermentation, environmental remediation, agricultural production, and biocontrol of plant pathogens.