Weeds
Trending Questions
What are weeds? Give 2 examples.
Name two weedicides.
Xanthium, parthenium, cyperinus are examples of ________ .
weeds
fodder crops
pulses
cereals
Explain various effects of weeds on crop plants.
Which one of the following is not a weed?
Xanthium
Amaranthus
Chenopodium
Finger millet
Give two examples each of
(a) Narrow leaved rabi season weed.
(b) Broad leaved kharif season weed.
Define the weed.
Which of the following is a weed?
Cowpea
Sudan grass
Parthenium
Linseed
Question 6
Weeds affect the crop plants by
(a) killing of plants in field before they grow
(b) dominating the plants to grow
(c) competing for various resources of crops (plants) causing low availability of nutrients
(d) all of the above.
- False
- True
Is ginger a flowering plant?
- True
- False
- X is a weed; Y is a weedicide
- X is a cash crop; Y is an insecticide
- X is a weed; Y is a fertiliser
- X is a fodder crop; Y is a herbicide
Xanthium, parthenium, cyperinus are examples of ________ .
weeds
fodder crops
pulses
cereals
Question 6
Weeds affect the crop plants by
(a) killing of plants in field before they grow
(b) dominating the plants to grow
(c) competing for various resources of crops (plants) causing low availability of nutrients
(d) all of the above.
- Wild oat, Xanthium, Cyperinus rotundus
- Amaranthus, lindane, Parthenium
- Cyperinus rotundus, alfalfa, thiodon
- Convolvulus, cowpea, cotton
- Water hyacinth
- Amaranthus
- Vallisneria
- None of the above
- Chenopodium
- Motha
- Jowar
- None of the above
Some plants are grown to be used as manure. Yet, some are removed from the field. These unwanted plants are called
Manure enhances the _______ of the soil.
colour
fertility
smell
salinity
- False
- True
Weeds affect the crop plants by
(a) killing of plants in field before they grow
(b) dominating the plants to grow
(c) competing for various resources of crops (plants) causing low availability of nutrients
(d) all of the above.
Jowar
Weed
Wheat
Rice