Q2 of 26 Page 206

How do plants get nutrients?

There are three different sources from where a plant gets its 16 essential nutrients: air, water and soil. The nutrients taken from air and water are carbon, oxygen and hydrogen and these are absorbed by stomata (of leaf), lenticel (of stem) and root-hairs (of roots). The 13 nutrients are obtained by plants from soil through roots. These 13 nutrients remain dissolved in water present in the soil.


More from this chapter

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1

What are the desirable agronomic characteristic for crop improvement?

 1

What are the macro-nutrients and why are they called macronutrients?

 1

Compare the use of manure and fertilizer in maintaining soil fertility.

 1

Which of the following conditions will give most benefits? Why?

(a) Farmers use high quality seeds, do not adopt irrigation or use fertilizers.


(b) Farmer use ordinary seeds, adopt irrigation or use fertilizers.


(c) Farmers use quality seeds, adopt irrigation, use fertilizers and use crop protection measures?