Description of Agro-climatic zone & major agro ecological situations
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Perambalur district of Tamil Nadu carved out from the east while composite Tiruchirappalli District, with its head quarters at Perambalur. This district is centrally located in Tamil Nadu between 10º 53’ and 11º 31’ N latitude and 73º 38˙ and 79º 31˙ E longitude.
This district has 3 taluks consisting of 152 revenue villages in 4 blocks. The temperature ranges between 22o C - 39o C with mean annual rainfall of 908 mm. North East monsoon period receives comparatively more rainfall i.e. 475 mm followed by 314 mm during South West monsoon, 91 mm during summer and 28 mm during winter season.
Black cotton soil, Clay loam and red sandy soil are the predominant soil types available. Wells and rainfall are the main source of irrigation in this region. Maize, Cotton, Paddy, Onion, Turmeric, Tapioca, Chillies, Tomato, Brnjal, Acidlime, Groundnut, Sunflower and Sesamum are the important crops in this district.Description of Agro-climatic zone
|1||North – Eastern zone||
A part of Perambalur district comes under this zone, which covers Veppur block of Kunnam taluk. It receives an annual rainfall of 900 – 975 mm during the north east monsoon. The mean maximum temperature ranges from 28.5 to 38.4o C while the mean minimum temperature is from 21 to 28oC. The major soil types are red sandy loam, clayey loam and saline soil.
The major irrigation sources are tanks, wells and tube wells. Since the rainfall is uniformly distributed from July to December, two crop sequences of groundnut followed by pulses or sesamum are practiced. The other crops like sugarcane and millets are raised with the help of well irrigation.
|2||North – Western zone||
A part of Perambalur district comes under this zone, which covers Veppanthattai, Perambalur and Alathur blocks. The mean annual rainfall is 875 mm and about 42 per cent of rainfall is received during the South-West monsoon period. The mean monthly maximum temperature is from 31 to 39 o C.
The major soils are non – calcareous red, black cotton soil and clay soil. Cultivation in drylands commences from the month of June to August which depends on the south west monsoon and monocropping is followed. In this zone, a significant practice of maize, cotton and chillies under purely rainfed cultivation is followed and paddy, sugarcane, elephant foot yam, onion, tomato and tapioca are cultivated with the help of well irrigation.
|S.No||Name of the soil series||Soil type||Characteristics||Total||Percentage|
|1||Kallagam||Sandy clay||Very deep, fine loamy, very gentle slope, high WHC, medium CEC, neutral reaction, Non – calcareousness||Slightly acidic, moderate sheet erosion||7,351||1.99|
|2||Kallakudi||Clay||Very deep, fine textured, very deep gentle slope, high WHC and CEC||Slow permeability, well drained, moderately alkaline||24,888||6.74|
|3||Kurumbalur||Loamysand||Very deep, loamy textured, moderately rapid permeability, well drained neutral reaction, free from salinity||Low WHC and CEC, low organic matter, moderately alkaline||6,854||1.86|
|4||Padalur||Loamy sand||Coarse loamy textured, rapid permeability, well drained, neutral reaction, free from salinity||Low WHC and CEC, low organic matter, mildly alkaline||8,029||2.18|
|5||Pattukottai||Sandy loam||Very deep, loamy on sub surface, neutral reaction, free from salinity||Low WHC and CEC, low organic matter, acidic reaction||34,589||9.37|
|6||Pilamedu||Clay||Very deep, clay loam to clay, high WHC and CEC, high organic matter, free from salinity||Moderately slow permeability, moderately alkaline, strongly calcareousness||62,197||16.85|
|7||Thevaiyur||Sandy clay loam||Deep soil, fine loamy textured, medium WHC and CEC, neutral reaction, free from salinity||Low organic matter, mildly alkaline, slightly calcareousness||3,475||0.94|
|S.No||Crop||Area (ha)||Production(Lakh Metric tons)||Productivity(kg /ha)|
|Crossbred||136412||5786.31 (Lakh lit)||3280 lit|
|Indigenous||133500||1194.83 (Lakh lit)||895 lit|
|Buffalo||21680||448.38 (Lakh lit)||2070 lit|
|Sheep||94358||1962646 Kg||20.8 Kg|
|Cross breed||96430||2285391 Kg||23.7 Kg|
|Indigeneous||411627||6791845 Kg||16.5 Kg|
|Desi chicken||278120||25030800 Nos||90 Nos|
|S.No||Month||Rainfall (mm)||Temperature 0 C||Relative Humidity (%)|