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NPK use map of Tamil Nadu (2003-04)
By T. Nagendra Rao
Highlights
- The Districts where NPK consumption is less than national average, are drought prone areas.
- The Districts where highest consumption is recorded are under Kauveri river delta where very intensive agriculture is in practice due to assured water supply.
- In other Districts, cash crops like sugarcane, turmeric, etc., are cultivated in addition to rice.
Primary Data Sources:
(1) Department of Agriculture, Govt. of Tamil Nadu
(2) Fertilizer and Agriculture Statistics, Southern Region (2003-04), The Fertilizer Association of India, Southern Region, Chennai
Table 1: District-wise NPK consumption* ranges in Tamil Nadu (2003-04)
NPK consumption range | Number of Districts | Districts falling in each category |
<= National average(90 kg/ha) | 9 | Namakkal, Dharmapuri, Tuticorin, Ramnad, Perambalur, Sivagangai, Viruthunagar, Karur, Dandigul |
>National average and up to two times
(90.1 - 180 kg/ha) | 11 | Kanyakumari, Nilgiris, Nagapattinam, Thiruvarur, Erode, Coimbatore, Cuddalore, Salem, Thiruvannamalai, Theni, Thiruvallur |
>Double the national average and up to three times
(180.1 - 270 kg/ha) | 6 | Vellore, Villuppuram, Tirunnelveli, Thanjavur, Kancheepuram, Madurai |
>Three times the national average and up to four times
(270.1 - 360 kg/ha) | 2 | Pudukkottai, Trichchirapalli |
* per unit of gross cropped area
N.B.: Total NPK consumption of Tamil Nadu during 2003-04: 713 .1 thousand tonnes (N: 378.5 + P2O5: 158.6 + K2O:176 thousand tonnes).
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