Weeds

Q.

What is weeding and what are the different methods of weeding?

Q.

What is the difference between herbicide and weedicide?

Q.

The process of removing unwanted plants from a crop field is called :

(a) breeding (b) weeding (c) transplanting (d) harvesting

Q.

Which is the best time for the removal of weeds?

Q.

What is weeding ? Why is weeding necessary ?

Q.

Given below is a conversation between two farmers - Heera and Beera.

Heera: Brother Beera, your maize crops look beautiful! They have grown pretty fast.

Beera: Yes, I have sprayed urea this time. What about you?

Heera: Well, I am still relying on good old cow dung. I am saving money on buying a tractor.

Beera: Thats good. Tractor saves a lot of time and labor.

Heera: Yes, its been very labor-intensive for me and now these weeds have come up.

Beera: Try weedicides. They are effective.

Now answer the following questions.

1. List the practices which are not environment-friendly and why?
2. What is the advantage of modern agriculture implements over traditional ones?
3. Name one weedicide and the precaution farmers must take during its aplication.

Q.

What are weeds? Name two common weeds found in India.

Q.

(a) What are weeds ? Name any one weed found in a crop field.

(b) How do weeds affect the growth of crops ?

Q.

How are weeds removed from the crop fields ? Name one implement used for weeding.

Q.

Some grass is growing in a wheat field. What will it be known as ?

Q. Consider the following statements about weeding and identify the incorrect one.

1. Weeding is best done during tilling itself.
2. Weeding is the process of weed growth.
3. Weeding is usually done manually or by using weedicides.
4. Weeding is the process of removal of weeds.

Q. Weeds are defined as :

1. Useful plants present in the crop field
2. Plants that are used as fodder crop
3. Undesirable plants present in crop field
4. Undesirable pests present in crop field

Q. (a) What are weeds? Name any one weed found in a crop field. ​

Q. What precautions should farmers take before spraying weedicides

Q. Why is weeding important?

1. Weeds are not useful.
2. Weeds compete with crops for nutrition.
3. Weeds compete with crops for space.
4. Weeds interfere in crop harvesting.

Q. Question 9
What are weeds? How can we control them?

Q. Weeding is the process of removal of weeds after they are mature.

1. True
2. False

Q.

Select the correct alternatives.

__________ and ________ are the plants which are grown to produce green manure.

1. Sun hemp and Gaur

2. Wheat and soya bean

3. Xanthium and Parthenium

4. Cyperus and Rotundus

Q. is an undesirable plant that grows along with crops. The process of removing them is called .

1. harvesting
2. Weed
3. weeding
4. Harvest

Q.

Dried leaves can be used to ________ .

1. repel insects

2. control weeds

3. increase soil fertility

4. None of the above

Q.

What are weeds?

Q. Question 4 (c)
Write a paragraph in your own words on each of the following.
(c) Weeding

Q.

Name any three methods of weed control.

Q. Match the following:

1. Khurpi
2. Seed drill
3. Sickle

Q. Planting a series of different crops in the same field following a defined order is called as

1. Green manuring
2. Summer tillage
3. Crop rotation
4. Sprinkler System

Q. Weedicides help in crop production by killing unwanted plants in the crop field.

1. True
2. False

Q. What is plant breeding?

Q. List the different crop patterns usually followed in our country.

Q.

Weeds are controlled by chemicals called as

Q. Match the following:

1. Khurpi
2. Sickle
3. Seed drill