An essential element is that which |
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a) |
Improves health of the plant |
b) |
Is irreplaceable and indispensable for growth of plants |
c) |
Is found in plant ash |
d) |
Is available in the soil |
An essential element is that which |
|||
a) |
Improves health of the plant |
b) |
Is irreplaceable and indispensable for growth of plants |
c) |
Is found in plant ash |
d) |
Is available in the soil |
(b) Essential element has following features: 1.It is indispensable for the growth of plants. 2.Cannot be replaced by any other element. 3.Absence/deficiency produces disorders. 4.Has nutritive value. 5.Necessary for completion of vegetative or reproductive phase. 6.These are- C, H, O, N, P, K, S, Mg, Ca, Fe, B, Mn, Cu, Zn, Mo and Cl. |