DESCRIPTION OF COURSES

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AGR 004 SOILS AND ENVIRONMENT                                                                               (2L + 1P) I

Objective
To impart fundamental knowledge on soil as a natural entity and its management for crop production

Theory

UNIT I
Soil as a natural body and medium for plant growth; nature and origin of soil, soil formation, classification and survey.

UNIT II
Composition of rocks, minerals and soils; soil properties – physical, chemical and biological; soil- water-plant relations.

UNIT III
Essential plant nutrients, their functions and symptoms of deficiencies; soil fertility and productivity; techniques of soil fertility evaluation; soil testing and fertilizer recommendations; manures, fertilizers and amendments.

UNIT IV
Soil organic matter; enhancing potential of agricultural soils for carbon sequestration; role of soils in carbon cycling; soil nutrient mining and land degradation; soil management and climate change.

UNIT V
Soil erosion, and soil and water conservation; problem soils - nature and management of acidic, salt-affected and waterlogged soils; soils of India.

Practicals
Soil sampling and processing; determination of water holding capacity of soil, pH, electrical conductivity, soil organic carbon, mineralizable N in soil; determination of available P, K and micronutrients in soil; lime requirement of acid soils and gypsum requirement of sodic soils; soil- test based fertilizer recommendations

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