Micronutrient status of Indian soils
| The role of micronutrients in plant nutrition and crop production has gained importance. List of chronological sequence of establishment plant essential micronutrients includes Iron (Fe) in 1843, Manganese (Mn) in 1922, boron (B) in 1923, Zinc (Zn) in 1926, Copper (Cu) in 1931, Molybdenum (Mo) in 1939, Chlorine (Cl) in 1954, and Nickel (Ni) in 1987 of which the deficiency of Zn and B are wide spread. Real impetus in micronutrient research in India came with the reports of Khaira disease (deficiency of zinc in rice) in mid sixties. The total stock of micronutrients in the bench mark soils of India was reported which largely reflects the diversity in the parent material of the soil and per se does not truly predict soil supply capacity. Only the available micronutrient pool in the soil represents the plant usable form. (Table) |
Soil Health Card
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