Stubble burning
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Stubble burning is the practice of intentionally setting fire to the straw stubble that remains after grains, such as rice and wheat, have been harvested. The technique is used to quickly and cheaply
Stubble burning in Essex, England in 1986
Burning of wheat stubble, near Barraport, Victoria, Australia
A sign in Nanjing, Jiangsu, China telling people not to burn stubble , the sign says "禁烧秸秆，人人有责"(lit. 'It's everyone's responsibility to refrain from burning stubble.').
Burning of rice residues after harvest, to quickly prepare the land for wheat planting, around Sangrur, Punjab, India
Biochar
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Biochar is a form of charcoal, sometimes modified, that is intended for organic use, as in soil. It is the lightweight black remnants remaining after the pyrolysis of biomass, consisting of carbon and
Stubble burning
…Helps to combat pests and weeds Biochar Reduced methane emission from biomass decay…
A pile of biochar
Biochar mixture ready for soil application
Artisanal biochar production in a Kon-tiki kiln
Smallholder biochar production with fruit-orchard prunings