Agrometeorology - Rainfall And Plant Growth

By TamilNadu Agricultural University on 28 Dec 2018 | read
    01

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.
  • Image title


S.No.Name of the ZoneDistrictsAnnual Rainfall (mm)
INorth Eastern ZoneKancheepuram, Vellore, 
Villupuram, Cuddalore, 
Thiruvallur, Tiruvannamalai
1105
IINorth western ZoneSalem, Dharmapuri Namakkal875
    
IIIWestern zoneErode, Coimbtore, Karur (Part), 
Namakkal (Part), Dindigul (Part), 
Theni (Part)
715
IVCauvery Delta ZoneThanjavur, Nagapattinam, 
Thiruvarur, Thiruchirappalli, 
Perambalur, Pudukottai (Part), 
Cuddalore (Part)
985
VSouthern ZoneMadurai, Sivaganga, 
Ramanathapuram, 
Virudhunagar, Thootukudi, 
Tirunelveli
857
VIHigh Rainfall ZoneKanyakumari1420
VIIHilly ZoneNilgiris 
(dindiugul part kodaikanal)
2124

Distribution of Rainfall

SEASONNORMAL IN (mm)
South West Monsoon314.6
North East Monsoon459.2
Winter37.5
Summer128.4
Annual (January-December)939.7


 

Comments