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Biofertilizers
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Green Manure
Examples of BioFertilizers: Pros and Cons
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Biofertilizers
Examples of Green Manure Pros and Cons of Green Manure? Advantages Disadvantage
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a substance which contains living microorganisms when applied to seed, plant surfaces, or soil, it promotes growth by increasing the supply or availability of primary nutrients (nitrogen, Phosphorous etc.) to the host plant.
Examples of BioFertilizers:
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Rhizobium, Azotobacter, blue green algae (BGA) Azospirillum
Pros and Cons Advantages Disadvantages
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It increases crop yield by 20-30%,
replaces chemical nitrogen and phosphorus by 25%, and stimulates plant growth.
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Their effects are is slower compared to chemical fertilizer. Difficulty to store: theyre sensitive to temperature and humidity changes. much lower nutrient density requires large amounts to get enough for most crops requires a different type of machine to apply than chemical fertilizers sometimes hard to locate/purchase in faraway rural areas
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It can also provide protection against drought and some soil-borne diseases. Bio-fertilizers are cost-effective relative to chemical fertilizers. They have lower manufacturing costs, especially regarding nitrogen and phosphorus use.
environmentally friendly also helps to some extent cleanse the plant from precipitated chemical fertilizers.
Green Manure
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green manure is a type of cover crop grown primarily to add nutrients and organic matter to the soil. Typically, a green manure crop is grown for a specific period of time, and then ploughed under and incorporated into the soil while it is green or shortly after flowering.
Government of India provides subsidy Subsidy on the purchased of seeds & cost on production of seeds for green manure plants.
Examples of Green Manure plants Leguminous plants Example Why are they used? Cowpeas, soybeans for their nitrogen fixing abilities Non-leguminous plants sudangrass, millet, sorghum, and buckwheat. for weed suppression and addition of biomass to the soil.
Pros and Cons of Green Manure? Advantages
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soil improvement and soil protection. provides forage for pollinating insects. Root systems of many green manure crops to efficiently penetrate compact soils thus increasing the aeration of the soil. The deep rooting properties of many green manure crops make them efficient at suppressing weeds They fix nitrogen in soil, thus Less chemical fertilizers are required. provide habitat for predatory beneficial insects, they kill and eat the pests / harmful insects thus less pesticides are required.
Disadvantage
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Leguminous plants require good amount of irrigation. The time factor: you cannot plant the primary marketable crop during green manuring phase.
[Science] Genetically Modified Crops, Bt-Brinjal, Cartagena & Nagoya Protocol: Meaning, Issues A guest article by Manikandan Soundararajan
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What are DNA and Gene? What do we need here? What is the necessity for GM technology? Current issue: Recommendations of the committee: What is this GEAC: Procedure to accord approval:
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Convention on Biological Diversity (CBD) Cartagena Protocol on Biosafety (CPB) Nagoya Protocol on Access and Benefit Sharing (ABS)
What are DNA and Gene? Always a human gives birth to humans, and a baby is said to inherit his/her parents characters. This is made possible only because of the so called genes. Genes are the books where all your personal, family characters are coded passed on to you from your parents. DNA is a polymer of nucleic acid specifically deoxyribonucleic acid which is in turn is comprised of sugar component and nitrogenous base.there are 4 type of nitrogenous base that is adenine , guanine, cytosine and thiamine. It is the sequence of theses nitogenous bases that determine our genetic charecter. [courtsey- Ritesh's comment] DNA aids in protein synthesis. Their expression gives you characters.
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What do we need here? .
