Advertisements
Advertisements
प्रश्न
Given below are statements about the harmful effects of weeds on crop plants.
- They interfere in harvesting.
- They help crop plants to grow healthily.
- They compete with crop plants for water, nutrients, space and light.
- They affect the plant growth.
Choose the correct combination of statements.
विकल्प
i, ii, iv
iii, iv
iii only
i, ii, iii, iv
उत्तर
i, ii, iv
Explanation -
Statements i, iii and iv are correctly suggesting the harmful effects of weeds. Weeds are the undesirable plants that grow along the main crops.
Removal of weeds is necessary because they interfere and affect the major crop’s growth, by competing for light, water, nutrients and space.They also interfere during harvesting procedure.
Weeds do not help in healthy growth of crop plants.
APPEARS IN
संबंधित प्रश्न
Explain how soil gets affected by the continuous plantation of crops in a field.
Who helped the farmer to drive the ‘mot’?
How is groundwater lifted these days?
Find and correct the incorrect statement.
Use of improved seeds does not lead to higher yields.
What is green manure?
The monsoon season in our country is during the months
State whether the following statement are True/False. Correct the false statement.
Growing different crops in different seasons in the same field will deplete the soil of nutrients.
State whether the following statement are True/False. Correct the false statement.
All crop plants are sown as seeds in the field.
Classify the following crops into Kharif and Rabi crops and write in the tabular column given below :
Maize, paddy, mustard, pea, gram, wheat, groundnut, cotton
| Kharif | Rabi |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
Define threshing.
