In News: scientists have developed a bio-decomposer technique called ‘PUSA Decomposers’ for converting crop stubble into compost.
What is Decomposition ?
- Decomposition refers to a biological process of breaking down organic material into smaller constituent parts.
- The decomposition of organic substances is ecologically significant. It plays a part in the nutrient cycle. It is an essential process of recycling matter in the biosphere.
- A decomposer is an organism whose ecological function involves the recycling of nutrients by performing the natural process of decomposition as it feeds on decaying organisms.
- Examples of decomposers are fungi and bacteria that obtain their nutrients from a dead plant or animal material.
- They break down cells of dead plants and animals into simpler substances, which become organic nutrients available to the ecosystem.
- It is a solution developed by the scientists at the Indian Agricultural Research Institute, Pusa, which can turn crop residue into manure in 15 to 20 days and therefore, can prevent stubble burning.
- It involves making a liquid formulation using Pusa decomposer capsules and readily available inputs, fermenting it over 8-10 days, and then spraying the mixture on fields.
- It is a mix of seven fungi that produce enzymes to digest cellulose, lignin and pectin in paddy straw.
- The fungi thrive at 30-32 degree Celsius, which is the temperature prevailing when paddy is harvested and wheat is sown.
Benefits of PUSA decomposers:
- Improves the fertility and productivity of the soil as the stubble works as manure and compost for the crops and lesser fertiliser consumption is required in the future.
- It is an efficient and effective, cheaper, doable and practical technique to stop stubble burning.
- It is an eco-friendly and environmentally useful technology.
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