Agroclimatic Classification

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Delineation of Agroclimatic Zones of India

To develop new genetic strains and evolve the most effective agricultural practices, much climatic information is required. This relates not only to rainfall and atmospheric temperature, humidity etc. but also radiation, evaporation and soil moisture. General meteorological observations were commenced in India in the second half of nineteenth century. In the last four or five decades agrometeorological observations have been recorded all over the country. Sufficient data are now available for presenting the agroclimatic information in the country.

1. Based on moisture index (Thornthwait)
2. Based on thermal index(Thornthwait)
3. Under National Agricultural Research Project(NARP)