Pdf modern agricultural management is heavily dependent on the fertilizers for promotion of crop production, but the massive use of. Pdf current perturbations in the agrarian economies and the. Cyanobacteria as a source of biofertilizers for sustainable agriculture. Advantages and characteristic features of algae used as biofertilizers. Biofertilizers are defined as preparations containing living cells or latent cells of efficient strains of microorganisms that help crop plants uptake of nutrients by their interactions in the. The dorsal fleshy lobe of the leaf contains the algal symbiont within the central cavity. The use of microalgae as biofertilizers provides a possible solution. The fern forms a green mat over water with a branched stem, deeply bilobed leaves and roots. Biofertilizers comprise of microorganisms, including bacteria, fungi, cyanobacteria, and algae as well as their metabolites that are capable of enhancing soil, crop growth, and yield. The promotive effect of algal biofertilizers on growth. The beneficiary role of bluegreen algae bga by way of supporting the nitrogen economy of paddy fields and enhancing rice productivity is well documented. Handbook of microbial biofertilizers kansas state university. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Nfixation, these biofertilizers or biomanures also contribute significant amounts of p, k, s, zn, fe, mb and other micronutrient. Sa naz af, ragaa ah 20 effect of some red marine algae as biofertilizers on growth of maize zea mays l. The promotive effect of algal biofertilizers on growth, protein pattern and some metabolic activities of lupinus termis plants grown in siliceous soil author s. The simple presence of bga in soil results in formation of soil aggregates, which reduces soil loss during rainy season and regulates aeration, soil temperature. Azospirillum is applied in the millets, sorghum, sugarcane, maize and wheat field. Blue green algae such as nostoc, tolypothrix, anabaena, and aulosira fix. Pdf algal biofertilizers and plant growth stimulants for. A key issue is the selection of technology for culture and acquisition of algae biomass for energetic purposes. Abstract investigations into the use of algae for energy production have been carried out for many years. It contains chapters on biofertilizers, role of biofertilizer in crop production, production and distribution of biofertilizer, organic farming, method of organic farming, weed and pest management, and many more. Cyanobacteria have an emerged potential as biofertilizer which are economical and environment friendly. Production of liquid bio fertilizer by using azotobacter.
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