The Happy Seeder option will eliminate air pollution by crop burning: Study

Researchers have concluded that direct seeding of wheat into unploughed soil and with rice residues left behind is the best option to deal with crop residue burning problem. The study found that the 'Happy Seeder' based systems are on average 20% more profitable than the most common 'burnt' systems and almost 10% more than the most profitable burning options

The Happy Seeder option will eliminate air pollution by crop burning: Study

Jyoti Singh (India Science Wire)

A new study has found that farmers in North India can not only help reduce air pollution, but also improve the productivity of their soil and earn more profits if they stop burning their crop residue and instead adopted the concept of no-till farming.

The researchers compared the cost and benefits of 10 distinct land preparation and sowing practices for rice-wheat cropping rotations prevalent in North India, spread across more than 4 million hectares. They also collected primary data from 1,015 farmers in Punjab.

Based on this, they have concluded that the direct seeding of wheat into unploughed soil and with rice residues left behind was the best option. It saved on water, labour and use of agro-chemicals, reduced green house gas emissions, and improved soil health and crop yield and thus benefiting both farmers and the society at large. The Happy Seeder option will eliminate air pollution by crop burning and reduce GHG emissions from on-farm activities by more than 78% relative to all burning options.


The study found that the 'Happy Seeder' based systems are on average 20% more profitable than the most common 'burnt' systems and almost 10% more than the most profitable burning options. Happy Seederis a tractor-mounted device. It cuts and lifts the residue of previous crop (in this case the rice straw) and sows a new crop (wheat) in its place.

It is a direct sowing machine that is capable of seeding for the new wheat crop even in presence of the rice straw residues on the soil surface without any tillage. To add to the benefit for the farmers, they can deploy the system immediately after the harvest of the rice crop. It deposited the straw over the sown area as mulch.

"Our study dovetails with the package of policies put in place by the government last year to stop farmers from burning their crop residue. The package includes a $166 million subsidy to promote mechanization to manage crop residues in fields," said Priya Shyam sundar, Lead Economist, Global Science, of The Nature Conservancy and first author of the study.


"We are working to scale up the happy seeder technology to end rice residue burning for farmers' prosperity and better public health. We have done a detailed analysis to understand public and private costs and benefits of residue management alternatives, building on our long-term research work," said ML Jat, co-author of the study and Principal Scientist,International Maize and Wheat Improvement Center (CIMMYT), while speaking with India Science Wire.

Results of the study have been published in Journal Science. Researchers from The Nature Conservancy, the International Maize and Wheat Improvement Center (CIMMYT), the Indian Council of Agricultural Research (ICAR), the Borlaug Institute for South Asia (BISA) and the University of Minnesota conducted the study.

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