Which one of the following criteria was used to demarcate 15 agro-climatic regions, which were accepted by the Planning Commission of India (now NITI Aayog) to initiate regional approach to agricultural planning during the Eighth Five-Year Plan ?
1
Climate, soil characteristics, and rainfall
2
Climate, soil characteristics, and water availability
3
Climate, soil characteristics, rainfall and water availability
4
Climate, cropping pattern, rainfall and water availability