A soil resource inventory was conducted at village level in all the blocks of Dharmapuri district, Tamil Nadu to assess the micronutrients status in the soils and to prepare fertility maps depicting the extent of soil micronutrient deficiency/sufficiency using GIS and GPS techniques. Soil samples were collected at Panchayat village wise along with geo coordinates and analysed for available micronutrients such as Zn, Fe, Cu, Mn and B by adopting standard procedures. Based on the nutrient status, the soils were grouped as deficient or sufficient using the critical limits. Per cent deficiency of micronutrients in each block was worked out and the thematic maps showing status of different available micronutrients were generated at block level. The results indicated that, Zn deficiency is most prevalent in the soils of all the blocks in Dharmapuri to an extent of 67.4 per cent, followed by Cu (7.8 %) and B (6.8 %), where as the other micronutrients were in sufficient level.
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Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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EDITOR-IN-CHIEF
Madras Agricultural Journal (MAJ)
Madras Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641
003
Tamil Nadu, India.
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