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Hydroponics is a technique in which plants are grown in
The plant ash is an indication of :
Plant ash contains only inorganic substances or minerals.
Where does most nutrient uptake occur in roots ?
It is possible to determine whether an element is essential by observing growth of plants
Terrestrial plants obtain all of the following nutrients from the soil except . . .
The bulk of the organic material of a plant is derived from carbon dioxide assimilated from the atmosphere.
Which of the group of elements is not essential for a normal plant?
For chlorophyll formation a plant needs :
For chlorophyll formation a plant needs Fe, Mg & light.
The group of mineral nutrients known as frame work elements are
Which element essential for the stability of chromosome structure?
Soil can easily become deficient in____________because these ions are negatively charged and do not stick to negatively charged clay particles.
NO3–, is negatively charged and not tightly bound to soil particles.