Plants with zinc deficiency show reduced biosynthesis of

Grey spots of oat are due to deficiency of

The most abundant element found in plants is

Element required for biological nitrogen fixation is

Copper is activator in enzyme

About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and :

Which is essential for the growth of root tip?

Which group of three micronutrient elements is required for both photosynthetic and mitochondrial electron transport

Excess of Mn causes deficiency of –