ICAR- Indian Agricultural Research Institute (IARI), New Delhi has developed a microbial consortium Pusa Decomposer for in-situ accelerated decomposition of stubble/parali.

Four capsules of this product can be scaled up to 25L liquid formulation which are diluted to 500L and applied in- situ to 1.0 ha of combine harvested rice field having 5-6 tonnes of paddy straw.

After application, the microbial decomposer and straw are mixed in soil uniformly using mechanical interventions i.e Rotavator/ Harrow/Reverse mould-board plough followed by light irrigation (if field is dry).

It accelerates process of paddy straw decomposition and field is ready for sowing of next crop in 20 days following conventional tilling (CT) practices.

Demonstrations on Pusa Decomposer capsules kits and liquid consortium for in-situ agricultural waste management at farmers’ fields in stubble burning prone areas were carried out at 13,992 hectares.

In addition, demonstrations/trials for the Ready-to-use wettable powder formulations were also conducted in collaboration with state governments and various Krishi Vigyan Kendras (KVKs) covering 1787.6 hectares.

The Pusa Decomposer has been put to use in different states viz., Uttar Pradesh, Delhi, Haryana, Punjab, Madhya Pradesh, Maharashtra, Rajasthan, Bihar, Gujrat and Uttrakhand.

Through the schemes of state governments and public private partnership, 6.89 lakh hectares area during 2021 and 7.70 lakhs hectare area during 2022 was covered under in-situ decomposition of stubble.

The Government made wider publicity through various communication means about advantage of use of Pusa Decomposer for rapid decomposition of rice residues.

Indian Agricultural Research Institute, New Delhi, Govt. of NCT of Delhi and different KVKs in Haryana (Panipat, Fatehabad, Sonipat), Delhi (Ujwa), Uttar Pradesh (Bahraich, Saharanpur, Raibarelli) and Rajasthan (Jhunjhunu) demonstrated the application of Pusa Decomposer. 

Also the license of the pusa decomposer technology has been transferred to nine other entities for its enhanced application for in-situ decomposition of stubble/ parali.

This information was given by the Union Minister of Agriculture and Farmers Welfare, Narendra Singh Tomar in a written reply in Lok Sabha on Tuesday.