File Name: role of microbes in soil fertility and crop production .zip
Soil fertility comprises three interrelated components: physical fertility, chemical fertility and biological fertility. Biological fertility, the organisms that live in the soil and interact with the other components, varies greatly depending upon conditions and it is highly complex and dynamic. It is the least well-understood fertility component.
Modern agriculture has to be more productive, sustainable, and environmentally friendly.
Stay connected with Eco-generation :. Soil productivity is considered as important factor for the success of agricultural production rather than soil fertility. Status of nutrient present in the soil and its ability to supply the nutrient determines the fertility of the soil whereas the ability of soil to produce the higher yield is soil productivity.
Role of bacterial biofertilizers in agriculture and forestry[J]. AIMS Bioengineering, , 2 3 : Article views PDF downloads Cited by AIMS Bioengineering , , 2 3 : Previous Article Next Article. Review Special Issues. Role of bacterial biofertilizers in agriculture and forestry. Download PDF. Many rhizospheric bacterial strains possess plant growth-promoting mechanisms. These bacteria can be applied as biofertilizers in agriculture and forestry, enhancing crop yields.
Bacterial biofertilizers can improve plant growth through several different mechanisms: i the synthesis of plant nutrients or phytohormones, which can be absorbed by plants, ii the mobilization of soil compounds, making them available for the plant to be used as nutrients, iii the protection of plants under stressful conditions, thereby counteracting the negative impacts of stress, or iv defense against plant pathogens, reducing plant diseases or death.
Several plant growth-promoting rhizobacteria PGPR have been used worldwide for many years as biofertilizers, contributing to increasing crop yields and soil fertility and hence having the potential to contribute to more sustainable agriculture and forestry. The technologies for the production and application of bacterial inocula are under constant development and improvement and the bacterial-based biofertilizer market is growing steadily.
Nevertheless, the production and application of these products is heterogeneous among the different countries in the world. This review summarizes the main bacterial mechanisms for improving crop yields, reviews the existing technologies for the manufacture and application of beneficial bacteria in the field, and recapitulates the status of the microbe-based inoculants in World Markets.
Related Papers:. Soil Biol Biochem Appl Microbiol Biotechnol Rev Latinoam Microbiol Mol Biol Evol Protoplasma Plant Soil Curr Agri Res J 1: Microb Ecol Appl Environ Microbiol Symbiosis Crit Rev Plant Sci Int J Syst Evol Microbiol J Biotechnol Folia Microbiol Praha Proc Biol Sci Aust J Plant Physiol Nature New Phytol Appl Soil Ecol Int J Syst Bacteriol Advances in Agronomy. London UK : Academic Press. Arch Microbiol DNA Res 7: Arch Microb J Chem Ecol Crit Rev Microbiol In: Lugtenberg B, editor.
Principles of Plant-Microbe Interactions. Switzerland: Springer International Publishing; J Basic Microbiol Pure Appl Chem Ann Microbiol J Basic Microb Can J Microbiol PLoS One 7: e J Plant Nutr Soil Sc Ann Bot Prikl Biokhim Mikrobiol Plant Signal Behav 3: J Microbiol LK11 produces gibberellins and IAA and promotes tomato plant growth. Plant Physiol Physiologia Plantarum Plant Sci The Plant Hormone Ethylene. Plant Physiol Biochem Ann Rev Plant Physiol Plant Cell 3: doi: J Ind Microbiol Biotechnol Z Pflanzenernahr Bodenk Biotechnol Adv J Appl Bacteriol J Appl Microbiol Springer p lus 2: Minerals in Soil Environments.
Soils: an Australian viewpoint. J Biofertil Biopest 3: PLoS One e J Spic Aromat Crops Res J Agric Biol Sci 1: Plant Soil Environ Microb Biotechnol 7: Planta Eur J Soil Biol Plant Biol Stuttg Curr Opin Biotechnol 7: In: Siddiqui ZA, editor.
The Netherlands: Springer; Appl Biochem Microbiol Phytochemistry Manak by bacterial combinations amended with chemical fertilizer. Crop Protect World J Microbiol Biotechnol Microbiol Mol Biol Rev Genet Mol Biol Ann Rev Phytopathol Microbiol Res Antonie Van Leeuwenhoek Trends Biotechnol 8: Biol Fert Soils J Soil Sci Plant Nut The Scientific World J
Soil provides the medium for root development, and with the exception of carbon, hydrogen, oxygen and some nitrogen, plants depend on soil for all other nutrients and water. Soils develop by the disintegration of rocks, and minerals therein, through biotic actions of the microbes and the fauna sustained by them. Earlier, only the physical and chemical properties of soil were considered important. However, the role of soil biodiversity in maintaining fertility, and the interdependence of soil biological activities with physical and chemical characteristics is well recognized now Abbott and Murphy ; Fitter ; Suzuki et al. Physical properties and the amount of soil organic matter SOM determine the microbial diversity that varies with depth, and soil health.
Soil microorganisms and their role in the interactions between weeds and crops. Massenssini A. The competition between weeds and crops is a topic of great interest, since this interaction can cause heavy losses in agriculture.
Soil microorganisms figure 1 are responsible for most of the nutrient release from organic matter. When microorganisms decompose organic matter, they use the carbon and nutrients in the organic matter for their own growth. They release excess nutrients into the soil where they can be taken up by plants.
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