S. No

Agro-climatic Zone

Characteristics

1

Sub zone III    : Western Zone
Sub zone IV    : Cauvery delta zone
Sub zone V      : Southern zone

Topography                             :  Flat and gently slope
Major rivers                             :  Cauvery, Amaravathy and its tributaries
Monsoon                                   :  North East Monsoon
Mean Annual Rainfall             :  641.6 mm
Hot months                               :  April- June                Maximum Temperature: 29.1-30.9 0C
Cool month                               :  December–February Minimum Temperature: 17.1-19.1 0C

Season wise Rainfall:
Winter (January- February)                             : 13.4 mm
Summer (March- May)                                    : 95.9 mm
South West monsoon (June – September)      : 211.1 mm
North East monsoon (October- December)    : 321.2mm
                                                             Total     : 641.6mm
Principle crops                                :  Rice, banana, sugarcane, millets, oil seeds and pulses
Irrigation sources                           :  River channels, wells, and tanks

S. No

Agro ecological situation

Characteristics

1

2

D3.4 Semi arid, hot- Tamil Nadu upland

D 4.4 Semi arid, hot central peninsular plateau
 

Growing period of 90- 180 days and little to moderate moisture availability

Growing period of 120- 170 days and moderate moisture availability

S. No

Soil type

Characteristics

Area in ha

Potentials

Limitations

1

Irugur

Moderately deep to deep
Fine loamy texture
Gently sloping
Moderately rapid permeability
Neutral reaction
Free from salinity
Non calcareousness

Sandy clay to clay in sub surface
Well drained
Low water holding capacity
Low organic matter
Moderate sheet erosion

92785

2

Tulukkanur

Deep to very deep
Fine textured
Gently sloping
Moderately rapid permeability
High WHC, Medium CEC
High OC, Neutral reaction, Free from salinity

Well drained
Moderately alkalinity
Calcareousness
Moderate to severe erosion

90248