Plant macronutrients, carbon, oxygen and hydrgen constitute about __________ % of a plant's dry weight.
12
46
77
94
Choose plant's micronutrients and macronutrients from the following
Assertion (A): Macronutrients are generally present in plant tissues in large amounts, in excess of 10 m mole kg−1 of dry matter.
Reason (R): Micronutrients are needed in very small amounts, less than 10 m mole kg−1 of dry matter.
Name any two macronutrients required by plants