A convenient size trench can be dug this trench is about 4 to 5 feet in depth


For leak proof, cover the sides / gaps with soil
Crop residue

GEO BIOCHAR PIT KILN

This is one of the simplest method of converting the crop residue and other biomass into Biochar / charcoal. The farmers can easily create pits / trenches and convert the biomass residue (apart from using for compost, mulch, etc) otherwise wasted by burning in the fields openly. The tribals at Yerragondapalem (supported by NABARD / Sri Sai Educational Society), in Andhra Pradesh were trained in this method (GSBC Project), they are able to produce the biochar, preparing biochar compost and applying to their fields.

GSBC Project is supported by GoodPlanet.org http://goodplanet.org , France and being implemented by GEO, Hyderabad, http://e-geo.org