Ppt on Introduction To Agroclimatic Zones And Their Significance In Agriculture (Part 2)

This lecture introduces the concept of agro-ecological zones, their classification, and significance in Indian agriculture. It covers the basis for delineation, major zones in India, and their importance for crop planning and sustainable resource management. Understanding agro-ecological zones is essential for optimizing land use, improving productivity, and ensuring environmental sustainability. Key academic keywords: agro-ecological zones, classification, crop planning, resource management, sustainability.
Introduction to Agro-Ecological Zones
  • Agro-ecological zones are land units defined by climate, soil, and physiography.
  • They help in understanding the suitability of crops and farming systems.
  • Classification aids in regional planning and resource management.
Basis of Agro-Ecological Zone Classification
  • Zones are delineated based on climate (rainfall, temperature), soil type, and topography.
  • Length of growing period (LGP) is a key criterion.
  • Physiographic features and water availability are also considered.
Agro-Ecological Zones of India
  • India is divided into 20 major agro-ecological zones by ICAR (NBSS&LUP).
  • Zones are further subdivided into sub-zones based on local variations.
  • Examples: Western Himalayas, Deccan Plateau, Eastern Coastal Plains.
Significance of Agro-Ecological Zoning
  • Facilitates crop planning and selection of suitable varieties.
  • Improves efficiency of resource management (water, soil, nutrients).
  • Supports sustainable agriculture and environmental protection.
  • Guides policy decisions and research priorities.
Applications in Indian Agriculture
  • Enables region-specific recommendations for crops and technologies.
  • Helps in identifying areas for rainfed and irrigated agriculture.
  • Assists in disaster management and climate adaptation strategies.
Summary
  • Agro-ecological zones are essential for scientific agricultural planning.
  • They integrate climate, soil, and physiography for optimal land use.
  • Understanding zones enhances productivity and sustainability.