Advertisements
Advertisements
प्रश्न
Distinguish between micronutrients and macronutrients. Give suitable examples.
उत्तर
Macronutrients | Micronutrients |
They are required in large quantities by the plant. | They are required in small quantities by the plant. |
In plants, the concentration of each macronutrient is more than 1 mg/gm of dry matter. | In plants, the concentration of each micronutrient is less than 1 mg/gm of dry matter. |
They are involved in building plant body and various protoplasmic structures. | They are required in traces for synthesising new compounds. |
Examples: Nitrogen, phosphorous, and magnesium. | Examples: Iron, manganese, and chlorine |
APPEARS IN
संबंधित प्रश्न
During the downpour in a village, the rain water carried away excess of nitrogenous and other compounds present in the soil to a pond. How will they affect the growth of algae and phytoplankton in the pond ?
How does chemical nature of the soil change due to continued use of chemical fertilizers ?
What is green manuring ? Give suitable examples for green manures.
Why water should be used judiciously ?
Explain the advantages and disadvantages of mixed cropping.
Write down disadvantages of crop rotation.
Classify plant diseases depending upon their occurrence and transmission.
Distinguish between fertilizer and manure. Give suitable examples. What are advantages and disadvantages of using fertilizer?
Define irrigation. Why is irrigation of crops essential? Mention the harmful effects of excessive irrigation.
Compare between mixed cropping and intercropping. Write down from advantage of both of these techniques.