The following methods of biochar compost being called 'GEOCHAR" are developed by Dr. N. Sai Bhaskar Reddy


Rice husk biochar (50%) 

Compost (vermicompost / Farm yard manure) (50%) 

Local soil microbes (collected from a locally maintained biodiversity place 
- no chemical fertilizers / pesticides ever applied in this place.) 

Addition of Jaggery / Molasses (20 kgs for every 5 tonnes of compost). 


Biochar (from local crop residue / wood) 

Farm yard Manure / vermicompost 

Green Manure 

Soil microbes (local soil microbes and optional - Tricoderma Viridea / 
Aztobactor / Azospirillium / Pseudomonas Fluorescence / etc.) 

Jaggery / Molasses 


A method adopted for application to alkaline soils 

Biochar compost preparation 

·         Biochar (charcoal is cleaned in running water to remove the ash) 

·         Vermicompost / farm yard manure 

·         Soil microbes (Add local soil microbes, addition of Trichoderma 
Viride, Azospirillum, Azatobactor and Pseudomonas fluorescence, etc., are 

·         Jaggery / Molasses addition 

* * 

*Field treatment before application of the above biochar compost in 
alkaline soils* 

Farm yard manure and biochar is added to the field (biochar should be 
cleaned in running water to remove any traces of ash before application) 

The soils are tested for the alkalinity and other parameters. Gypsum and 
sand is added as per the requirement. Other nutrients / trace elements are 
added as per the requirements. 


Biochar treated in Urine (Animals / Human) 

Note: The biochar saturated in urine is dried in shaded conditions is 
applied to the soil directly. 

*Important points* 

1.    Soil test is important for understanding various other parameters and 
necessary amendments are made accordingly. 

2.    Biochar compost application yields immediate results in the field. 

3.    Application of biochar directly to the field is a slow process of 
getting the results. 

4.    The combination of both methods can be chosen. Preference should be 
given to biochar compost application. 

5.    The method of preparation of biochar compost is aerobic. There should 
be enough moisture during the preparation and prepared under normal 
temperatures in a shady place. 

6.    The addition of jiggery / molasses / sugars should be done while 
mixing the biochar compost. 

7.    Minimum number of days required for preparation of biochar compost 
are 15 days. The temperature in the biochar compost is around 30 degrees at 
the end. 

8.    The field should be wet (or apply after the rains) at the time of 
application of biochar compost (this helps in easy spread of soil microbes). 

9.    Other additions in the biochar compost could be based on the 
availability : pottery shards / fish meal / brick pieces / burnt earth, etc. 

10. Silt application is also important along with the biochar for the 

11. Biochar compost Application 

Point - eg. Horticulture crops – three zones bottom, middle and top as mulch 

Spread – Irrigated and rainfed crops