Assessment of Secondary and Micronutrients of Soil in Coimbatore District, Tamil Nadu, India

Abstract

An experiment was conducted in 2022-23 with prime objective to assess the Secondary and Micronutrients of Soil at different depths of various sites of Thondamuthur, Anaimalai and Karamadai blocks of Coimbatore District, Tamil Nadu. The soil samples were collected at 0 -15, 15-30 and 30-45cm depth following standard procedure. Calcium (6.2 cmol (p+) kg-1 to 9.0 cmol (p+) kg-1) and Magnesium (2.3 cmol (p+) kg-1 to 5.7 cmol (p+) kg-1) are very sufficient in this soil.  Sulphur (0.78 mg kg-1 to 0.98 mg kg-1) is optimum in all locations. Zinc (0.72 mg kg-1 to 0.87 Mg kg- 1) content is sufficient in this soil. The Iron content of the soil ranged from 4.17 mg kg- 1 to 5.97 mg kg- 1. The Iron content is sufficient in all sites. The Boron content of the soil ranged from 0.46 mg kg- 1 to 0.85 mg kg- 1. The Boron content is sufficient in all sites. The Copper content of the soil ranged from 0.60 mg kg-1 to 0.80 mg kg-1 The Copper content is excess in all sites. The Manganese content of the soil ranged from 1.77 mg kg-1 to 3.03 mg kg-1. The Manganese content is sufficient in all sites. There is an including awareness of the need to pay greater attention in the role of organic matter enhancement for good soil health and proper nutrition of plant so as to attain optimum economic yield and soil is suitable for all major tropical and sub-tropical crops.