Brief Explanation of Biochar as Soil Enhancer

1. PREPARED BY:
Bibek Dev
Bsc.Ag 2nd sem
FOA, AFU (Sec:D)
"BIOCHAR"
As a soil enhancer

2. OUTLINE
What is Biochar?
Evolution of Biochar
How to make Biochar?
How to charge & Recharge Biochar
How to apply Biochar?
Advantages??

3. INTRODUCTION
Biochar is also known as Terra preta,
which is a charcoal like substance , that is
made by burning organic matter from
agriculture & forestry wastes in a
controlled process called pyrolysis (350–
600)°C.Biochar is a stable solid rich in
carbon & can ensure in soil for thousand
of years. It is generally alkaline.
It has potential to mitigate global
warming & climate change.
Biochar has generated huge interest
among agro practioners mainly for its two
sets of benefits.

4. The another set of benefits includes enhanced
adaptive capacity of agricultural system to climate
change impacts. These acclaimed effects of
Biochar on soil are among which millions of
farmers & policy makers are looking for.
The first set of benefits is about desirable changes
in soil function that includes inhanced soil
microbial activity, retention of moisture, alkaline
effect for treating acidic soils & increases porosity
of soil.
NOTE: The biochar doesnot have nutrients, it is a
nutrient storage!

5. History & Evolution of Biochar
Biochar was discovered in 1960's by a Dutch soil
scientist wim sombroek from Amazon rainforest. More
recently, the growing climate change concerns have
fueled interests on biochar as a promising tool to
sequester carbon, enhance climate adoptability of
agricultural soil and increase agronomic yield.
Traditionally, local farmers from various parts of world
follow numerous techniques to prepare and use biochar
based on their indigenous knowledge and practices. For
example, in parts of Japan, China, India, Nepal and many
other countries, farmers have long traditions of using
pyrolysed biomass in their farmlands. In Nepal, high
mountain farmers have a tradition of producing on-farm
biochar but

6. their applications are limited to nursery beds of
finger millet, potato and other vegetables. The
modern biochar technologies are based on trials
through cycles of research, development and field
verifications undertaken by diverse groups of
agencies and individuals.
With the growing interests on biochar, there is a
rapidly evolving knowledge on practices in various
fronts of its production and application in response to
diverse agricultural challenges such as climate change,
rehabilitation of degraded farmlands, and, building
more efficient and sustainable farming systems.
At present NARC, NAST as well as many other
organization are conducting various research about
Biochar.

7. Process of making Biochar

8. After the pit is filled completely & we do not have
materials left for making biochar, water is sprayed over
pit in order to distinguish fire. Instead of water cow
urine is considered best as is charges biochar with
nutrients in it.
The resulting left over in the pit is biochar which can
be used in the soil after charging it with any source of
fertilizers.
Biochar is produced in an O2 free environment for a
number of reasons, typically the aim is to produce high
carbon, high calorific value & energy dense fuel.....
however the use of oxygen results in combustion which
increases ash products & excess of GHG like co2, so2 &
N2o.

10. Charging of Biochar

11. Recharging of Biochar

12. Application of Biochar

14. Advantages

18.  Reduces the amount of fertilizer used
 Decreases N2o, Co2 & other green house gas
emissions from the soil
 Food conservation: put a small bowl of Biochar into
the fridge & it will not only absorb bad odours but
also ethylene which will retard the post ripening.
Also used in Food packaging.
 Treating pond, lake & ground water it absorbs
pesticides, fertilizers & pollutants .
 Filling of mattresses & pillow: Absorbs perspiration
& odors , prevent insomnia & neck tension.
 Cataplasm for insect bites, abscess, eczema &
detoxification.

21. Thank you for your attention!!
"Everything we dont know, is an
opportunity to learn"🤗