ABSTRACT
Agro-climatic zone is a land unit in terms of major climates suitable for certain range of crops and cultivars. The purpose of classifying agro-climatic zones is to developing location specific research and development strategies for increasing agricultural production. The objective behind this was that resource based planning becomes feasible once homogeneous regions with respect to natural resource endowments were delineated and their utilization of available natural resource endowments was related to requirements of output and employment. So, the planning commission delineated India into 15 agro-climatic zones based on homogeneity in rainfall, temperature, topography, water resources, cropping and farming systems. Identification of homogeneous agro-ecological zones is necessary for sustainable utilization of land, water and other natural resources for development through transfer of suitable technology. Development planning based on characteristics of agro-ecological zones is much relevant to achieve higher production. Agro-ecological zone is a land unit carved out of climatic zone, correlated with landforms, climate and the length of growing period (LGP).
