Advertisements
Advertisements
प्रश्न
What are macro-nutrients and why are they called macronutrients?
Advertisements
उत्तर
Nutrients are supplied to plants by air, water and soil. There are several nutrients that are essential for plants. Air supplies carbon and oxygen, hydrogen comes from water, and soil supplies the other thirteen nutrients to plants. Amongst these, some are required in large quantities and are called macro-nutrients. The six macronutrients required by plants are nitrogen, phosphorus, potassium, calcium, magnesium, and sulphur.
APPEARS IN
संबंधित प्रश्न
Why are manures and fertilizers used in fields?
Distinguish between micronutrients and macronutrients. Give suitable examples.
Classify nutrients according to their sources.
Explain the term eutrophication with suitable example
How does chemical nature of the soil change due to continued use of chemical fertilizers ?
Mention three effects of excessive irrigation.
Define plant breeding? Describe the various methods of plant breeding.
What is the advantage of using insect resistant varieties?
Explain what will happen if in a cultivated field only manures are supplied and in another field only fertilizers are supplied, keeping all other conditions similar.
Which one is not a source of carbohydrates?
