CHAPTER-15
Improvements in Foods Resources
Questions:-
08-JULY-2016
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SOURCE
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NUTRIENTS
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Air
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carbon, oxygen
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Water
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hydrogen, oxygen
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Soil
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(i) Macronutrients:
nitrogen, phosphorus,
potassium, calcium,
magnesium, sulphur
(ii) Micronutrients:
iron, manganese, boron,
zinc, copper,
molybdenum, chlorine
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- There are sixteen nutrients which are essential for plants. Air supplies carbon and oxygen, hydrogen comes from water, and soil supplies the other thirteen nutrients to plants. Amongst these thirteen nutrients, six are required in large quantities and are therefore called macronutrients. The other seven nutrients are used by plants in small quantities and are therefore called micronutrients.
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