Interactive Powerpoint_How to Master effective communication
Mulching for soil & water
1.
2. MULCHING FOR SOIL AND
WATER CONSERVATON
Suhail Saliq
DEPARTMENT OF AGRONOMY
Bahauddin Zakariya University,
Multan, Pakistan.
3. Outline
1) Introduction
2) Mulching
3) Types of Mulching
4) Working of Mulch
5) Advantages of Mulching
6) Water & Soil Conservation by Mulching
7) Conclusion
4. Introduction
Main Characteristics of Arid Zone
Low Precipitation
High Temperature
Major Problems of Arid Zone
Less availability of Moisture
Soil Erosion
One of the Solutions to Problems
Mulching
5. Mulching
A mulch is a layer of
material applied to the
surface of an area of soil.
Mulches are materials
placed over the soil surface
to maintain moisture and
improve soil conditions.
7. Organic Mulches
“It is the type of mulching in
which the mulching material is
always organic.”
Organic residues, grass
clippings, leaves, hay, straw,
shredded bark, whole bark,
animal manure, etc.
Organic mulches are temporary
decay over time.
They add Organic matter in Soil
Increase water retention Capacity
Provide Nutrients
8. Inorganic Mulches
In this form mulching
material is always from
inorganic source (synthetic)
.
The material used in this
type is usually stones,
plastic bags , nylon sheets
etc.
They do not decompose
with time.
10. Advantages of Mulching
1) Moderates soil temperature
2) Reduces evaporation
3) Stabilizes soil moisture
4) Controls weeds
5) Controls soil erosion
6) Provides valuable nutrients as breaks down
7) Encourages worms, which aerate the soil
11. Water Conservation by Mulching
Mulches Prevent from water loss:
Moderation of soil Temperature
Minimizing Evaporation
Preventing Run-off
Suppress water-stealing weeds
Add organic matter to the soil
Improve water retention capacity
12. Soil Conservation by Mulching
Mulches break the force of rain
and irrigation water thereby:
Improve Soil texture
soil compaction and crusting
preventing erosion
Mulched soils absorb water faster
13. Conclusion
Simplest and cheapest method to Conserve
Natural Resources
Conserve Soil Moisture
Organic Mulch-----------------25%
Inorganic Mulch---------------75%
Reduction in Soil erosion---------41-75%