Soil aggregation refers to soil particles binding together to form aggregates. This process is facilitated by organic compounds from microbial activity and root systems, which act as binding agents. Soil aggregation benefits soil health by improving water retention, aeration, and nutrient availability. Factors like organic matter, microbial activity, root systems, and clay content influence aggregation. Maintaining good aggregation requires minimizing compaction and chemical use while adding organic matter through practices like cover cropping and no-till farming.

1. SOIL AGREGATION :a
key parameter for
maintaining soil
health
Asutosh pradhan -230804130020
Saswat mahapatra-230804130027

2. CONTENTS:-
INTRODUCTION
SOIL COMPOSTION
FACTORS
ROOT SYSTEMS
CLAY CONTENT
BENEFITS
ISSUES
CONCLUSION

3. Soil aggregation refers to the process of
soil particles binding together to form
aggregates.
This cohesion is facilitated by organic
compounds such as polysaccharide
produced by microbial and root activity.
Soil aggregation=flocculation+cementation
INTRODUCTION:-

4. Soil consists of components like minerals,
organic matter, soil water and soil air.
Organic matter derived from plant and
animal residues, helps in soil aggregation.
Organic matters acts as a binding agent,
developing formation of stable soil
aggregates.
SOIL COMPOSITION :-

5. Microbial activity influences soil
aggregation by producing substances
like polysaccharides
These microbial by-product acts as a
binding agent, promoting formation of
soil aggregates.
It is a key factor maintaining healthy soil structure.
Factors influenceing soil aggregation :-

6. It plays a crucial role in soil aggregation
by
physically binding soil particles and
secreting organic compounds
As root grow and expand, they create
channels in the soil, promoting aeration
and water infiltration.
ROOT SYSTEMS:-

7. CLAY CONTENT :-
It significantly inflences soil aggregation
It have lager surface area ,so it have better nutrient
retention and waterholding capacity
Excerssive clay can lead to soil compaction and reduced aeration

8. Benefits of soil aggregation:-
It improves water retention capacity of soil as aggregates create space for water storage
It improves aeration by creating channels for air movement
It enchances nutrient availability resultfrom increased surface area with in aggregates

9. Soil aggregation evalution method
Visuals evaluation involve observing
soil characteristics like colour and
structure.
Sieve analysis separates soil particles
by size, providing insights into
texture.
Water stability test assess aggregate
stability under wet condition.

10. It include soil compaction, which reduces
porosity and limit root growth.
Lack of organic matter diminishes binding
agent crucial for aggregation,
Excessive use of chemicals negatively
impact soil microbial community,
affecting soil aggregates formation
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Common soil aggregation issue:-

11. Adopting cover cropping helps preserve soil
structure by preventing soil erosion and
adding organic matter.
No till farming minimizes soil disturbance
preserving aggregates and organic matter.
Adding organic matter in the soil enhances
microbial activity, hence helping soil
aggregates formation.
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METHODS TO IMPROVE SOIL HEALTH:-

12. CONCLUSION:-
Soil aggregation plays important role
in maintaining soil health.
This process helps in preventing soil
erosion and supporting microbial
activity.
Investing in practices that promote
soil health is essential for sustainable
agriculture.