Elements such as calcium, potassium, and phosphorus, needed by the plant in fairly large amounts are called:
Fertilizers
Coenzymes
Macronutrients
Enzyme activators
Elements which are needed by the plants in fairly large amounts are called ___ .
Assertion : The chief sinks for the mineral elements are the older regions of the plant.
Reason: Elements most readily mobilised are calcium, phosphorus, nitrogen and potassium.