RAINFALL AND ITS INFLUENCE ON CROP PRODUCTION
- Cropping system can be planned by understanding the rainfall pattern.
- Rainfall analysis helps in taking decisions on time of sowing, scheduling of irrigation, time of harvesting etc.,
- Rain analysis is necessary for designing farm ponds, tanks of irrigation projects.
- Amount, distribution and intensity of rainfall are the important aspects of rainfall that have considerable influence on crop production.
|S.No.||Name of the Zone||Districts||Annual Rainfall (mm)|
|I||North Eastern Zone||Kancheepuram, Vellore, |
|II||North western Zone||Salem, Dharmapuri Namakkal||875|
|III||Western zone||Erode, Coimbtore, Karur (Part), |
Namakkal (Part), Dindigul (Part),
|IV||Cauvery Delta Zone||Thanjavur, Nagapattinam, |
Perambalur, Pudukottai (Part),
|V||Southern Zone||Madurai, Sivaganga, |
|VI||High Rainfall Zone||Kanyakumari||1420|
|VII||Hilly Zone||Nilgiris |
(dindiugul part kodaikanal)
Distribution of Rainfall
|SEASON||NORMAL IN (mm)|
|South West Monsoon||314.6|
|North East Monsoon||459.2|