Name any two biofertilizers

Biofertilizers ‘Bio’ means ‘life’. Therefore, by definition biofertilizers are living organisms that enrich the nutrient quality of the This is what makes them so important to Types of Biofertilizers: • Bacteria • • Cyanobacteria Bacteria You may have already studied the nitrogen-fixing nodules on the roots of legumes. This a great example of biofertilizers. The nodules are formed by the association of the bacterium ‘ Rhizobium’ with the roots of these plants. This association is beneficial and is, therefore, called ‘symbiotic’. The nodules help in fixing atmospheric nitrogen into organic forms which can then be used as nutrition by the plants. Adding Rhizobium cultures to fields has become a common practice to ensure an adequate amount of nitrogen in the soil. Other examples of bacteria that act as biofertilizers include Azospirillum and Azotobacter. These bacteria are free-living in the soil. Azotobacter is usually used with crops like cotton, wheat, mustard, maize, etc. Fungi Symbiotic associations exist between plants and fungi too. These associations are called ‘Mycorrhizae’. The fungus in this association absorbs phosphorus from the soil and provides it to the plant. Plants that grow with these associations also show other advantageous characteristics such as: • Tolerance to drought conditions and salinity. • Resistance to root-borne pathogens. • An overall increase in plant growth and development. Cyanobacteria These are blue-green bacteria found in water and on lan...

Biofertilizer is a natural way of providing essential nutrients to plants and soil in order to improve their health and fertility. It’s an affordable, sustainable alternative to traditional fertilizer that can help you grow healthy crops without having a negative impact on the environment. When used correctly, it can even save money too! In this blog post, we’ll discuss what biofertilizers are, the different types available, and why they’re important for students looking for an ecological yet effective way of producing nutrient-rich crops. Read on to learn more about this amazing form of fertilization! Bio­fertilizer comes from alive particles or alive materials. The term ‘Bio­fertilizer’ or, more appropriately, microbial inoculant can be defined as the preparations containing live and latent cells of efficient strains of nitrogen-fixing, phosphate solubilizing, or cellulolytic microorganisms used for application to soil, seed, or composting areas with the objectives of the increasing number of such microorganism and accelerating certain microbial processes to augment the extent of the availability of nutrients in a form which plants can easily assimilate. Or, In a large sense, the term may be used to include all organic resources (manure) for plant growth, which are rendered in an available form for plant adsorption through microorganisms or plant association or interaction. The fertilizer is used to improve the fertility of the land using biological wastage. Hence the te...

A biofertilizer is a substance which contains living Biofertilizers today [ ] Biofertilizers provide " Azospirillum inoculations are recommended mainly for Tolypothrix and Phosphate-solubilizing bacteria [ ] Other types of bacteria, so-called i) in soil is well below plant needs. In addition, chemical P i fertilizers are also immobilized in the soil, immediately, so that less than 20 percent of added fertilizer is absorbed by plants. Therefore, reduction in P i resources, on one hand, and environmental pollutions resulting from both production and applications of chemical P i fertilizer, on the other hand, have already demanded the use of [ citation needed] Benefits [ ] • Biofertilizers are means of fixing the nutrient availability in the soil. Generally Nitrogen deficiencies. • Since a bio-fertilizer is technically living, it can • It has also been shown that to produce a larger quantity of crops, biofertilizers with the ability of nitrogen fixation and phosphorus solubilizing would lead to the greatest possible effect. • They advance shoot and root growth of many crops versus control groups. • Biofertilizers also promote healthy soil, leading to greater farming sustainability. Groups of biofertilizers [ ] • Azolla- Anabena symbiosis: Azolla is a small, eukaryotic, aquatic fern having global distribution. Prokaryotic blue green algae Anabena azolla resides in its leaves as a symbiont. Azolla is an alternative nitrogen source. This association has gained wide interest beca...

Bio fertilizers: • Fertilizers promote plant and tree growth by increasing the availability of critical nutrients. • These fertilizers are produced mainly by bacteria, blue-green algae (also known as Cyanobacteria), and fungi. • Nitrogen-fixing bacteria are the most common. • Nitrogen-fixing bacteria come in a variety of forms, including symbiotic (Rhizobium), loose association (Azospirillum), and free-living ( Clostridium beijerinckii), and others. • Cyanobacteria like Anabaena and Nostoc are quite important. • They form a relationship with a specific plant and are in charge of nitrogen fixation in that plant.