Pusa Bio-decomposer

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Indian Agricultural Research Institute (IARI) has developed a solution named 'Pusa' that can decompose crop residue into manure by accelerating the decomposition process. This bio- decomposer is basically a liquid formulation. The solution, when sprayed in the fields, can decompose crop residue and turns it into manure. The solution increases soil fertility and reduce the use of fertilizers. These agents act on the straw to make it soft and plough-able, break down its molecular components and release the nutrients into the field. A special mix of microbes in the decomposer can be apply on any kind of organic biomass. In the process it turns rice stubble into fluffy manure.


What is stubble burning?

There are two kinds of wastes after harvesting: one is the straw left behind after threshing and taking out grain. And the second is the stubble which is left attached to the ground after harvesting. The burning of both of them is broadly termed as stubble burning. Burning paddy straw has emerged as a big problem in the past two to three decades as farmers have shifted to mechanised combine harvester, which cuts the grainy part of a rice plant, leaving the stalk intact.

What is Pusa decomposer?

Pusa decomposer( both in liquid and capsule forms) is a microbial solution for accelerating decomposition of paddy straw. Pusa bio decomposer- a concentrated powder of natural fungi, when sprayed at right time the bio decomposer speed up the stubble decomposition process. It is an in- situ stubble management system. 


  • Four capsule can be scaled up to 25L of liquid formulation. 25L can be applied to One hectare of field (@ 10 L/ acre having 4-5 tonne of straw per acre). 
  • Pouch of four capsule cost Rs20/-
  • The acceleration process makes the field ready for wheat sowing in 25 days. This has been demonstrated in farmers fields in Punjab, Haryana, UP and in NCR.
  • Its use enrich the soil with nutrients and soil biological and physical properties were also improved.
  • It is a long term sustainable solution for management of paddy straw.

Benefits:

  • the method cost s less than Rs.1000 per acre.
  • turned crop residue into manure;
  • reduced cost of chemical fertilisers;
  • no stubble burning required;
  • reduce Air pollution.
  • It promotes the theme 'Sustainable Agriculture'.
  • An independent audit slowed that in 90% of farms, stubble was decomposed within 15-20 days,and organic carbon increased by 42% and organic nitrogen increased by 24%. The decomposer is win- win solution for both farmers and air. 
  • The decomposer solved the problem of stubble, even increased soil fertility in areas where it was used. 

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