Degraded lands effective managemnet

1. Zohaib ur Rehman
Bughio
By

2. INTRODUCTION
Loss of economic value of land due to combined effect of environmental factors and human
activities is called as land degradation.
A land is so to be degraded when it fails to have any quality which is
essential for land use.
Factors involved are salinization , water logging , nutrient depletion , erosion and many others
.
Land Degradation

3. NUTRIENT MANAGEMENT
Nutrient
management
involves managing
the adequate
amount of essential
plant nutrients in a
given piece of land.
‘Nutrients are the
food for the crops
and their deficiency
at any level results
in heavy yield
losses.
The required
amounts u apply
the best yields you
get.
Nutrient
management is key
for sustainable
agriculture

4. SALT AFFECTED SOILS
The most degraded lands in
terms of nutrient
managements.
Methods to manage the
nutrients in Salt affected
soils
• Use of acidic fertilizers.
• Secretion of organic acids
• Use of elemental sulfur
• Foliar application of micronutrients
• Applying fertilizers in small
amounts and in bands.

5. SOIL EROSION
Removal of top fertile
layer by the action of
wind water and ice.
Management of
nutrients in Eroded
lands:
• Maintaining crop cover.
• Spring conservation practices.
• Maintaining a proper soil
structure
• Providing adequate drainage.

6. WATER LOGGING
The condition in which the
soil is saturated with water
is called as water logging.
Methods for management
of Water logging.
• Foliar application of fertilizers.
• Providing air channels for air
exchange.
• Site-specific nutrient management
(SSNM).
• Use of organic materials.
• Use of fertilizers( Urea , Ammonium
Nitrate , Ammonium Sulfate).

7. NUTRIENT DEPLETED SOILS
Soils which have lesser
amount of nutrients are
called as nutrient depleted
soils.
Methods for nutrient
management in Nutrient
depleted Soils
• Crop rotation.
• Fallowing.
• Application of Farm Yard
Manure.
• Mulching and Green manuring.
• Integrated fertilization.