Micro nutrient
fertilizers
Sixteen elements are essential for plant growth out of these Fe, Zn, Mn, Cu, B, Mo, Cl are required in small quantities. They are called tertiary or micro nutrient. The average concentration of these nutrient in soil are Mn 1000 ppm, Cl 480 ppm, Zn 80 ppm, Cu 70 ppm, B 10 ppm, Mo 2 to 3 ppm, iron 140 ppm. Development of micro nutrient deficiency: The micro nutrient deficiency occurs under conditions of
The
deficiencies may be overcome by addition of more than one micro nutrients. If more than
one micronutrients are applied it is called multinutrients. The information on sources of
micronutrients, their formulae and nutrient content is given in following table.
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