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Agro Climate Zone
S. No |
Agro-climatic Zone |
Characteristics |
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Tiruchirappalli district comes under three agro climatic zones viz.,
Sub zone II – North – western zone
Sub zone IV – Cauvery Delta zone
Sub zone V – Southern zone |
Irrigated dry crops-Sunflower, millets clayey soils with rice , banana and sugarcane are major crops
Rainfed crop millets |
Zone No. |
Agro ecological situation |
Characteristics |
D3.4 |
Semi arid, hot - Tamil nadu upland |
Growing period of 90-120 days and little to moderate moisture availability |
D4.4 |
Semi arid, hot – Central pennisular plateau |
Growing periods of 120-150 days with moderate moisture availability |
Cd 5.5 |
Dry, sub humid-coastal plain of TamilNadu including cauvery delta |
Growing periods of 150-180 days with moderate high moisture availability |
Soil types
S. No |
Soil type |
Characteristics |
Area in ha |
1 |
Irugur |
Red to dark red, deep fine loamy no calcareous, slightly acid to neutral soil (Typic ustorrhents) |
70,707(16.0) |
2 |
Palaviduthi |
Red to dark reddish brown, very deep fine loamy, slightly acid to neutral (Typic rhodustalf) |
31,863( 7.2) |
3 |
Thulukanur |
Reddish brown to dark greyish brown, moderately deep, very deep fine loamy soils
(Typic haplustalf) |
21,963 ( 5.0) |
4 |
Govindapuram |
Deep to very deep, calcarious medium to heavy textured black soil (Typic haplusterts) |
18,714(4.3) |
5 |
Mixed alluvium |
River deposit along Cauvery and its channels |
21,703(4.9) |
6 |
Vayalogam |
Red, moderately deep to deep fine loamy non calcareous (Typic rhodustalf) |
18,990(4.0) |
7 |
Thuraiyur |
Shallow to moderately deep calcareous, fine loamy clayey, (Typic haplusterts) |
17,361,(3.9) |
8. |
Association of series of Vertisols |
Adhanur + Kalathur +Kolakudi + Periyanaykkanpalayam + Pilamedu + Puvalur + Solampatti+ Thinnakonam |
50,146 (11.4) |
9. |
Association of series of Alfisols |
Kallagam+Madukkur+ Magaraipatti+ Manmalai+Palathurai+Pudhukottai+Thandipattai |
28,710(6.5) |
10. |
Association of series of Inceptisols |
Alathur +kollanpatti+Omandur |
22,644(5) |
11. |
Association of Entisols |
Tholarpatti +Uppiliyapuram |
20,415 (4.6) |
12. |
Others |
|
76,502(22) |
Total |
4,40,412(100%) |
(Values in parentheses indicate percent to total area of the district) |
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