Improvement In Food Resources Class 9 Assignment Of Deed

Match the column

Column - I                                                Column - II

a. Kharif                                                     (i) Amaranthus

b. Rabi                                                       (ii) Rice

c. Tilling                                                     (iii) Wheat

d. Fertilizer                                                 (iv) Trickle

e. Irrigation                                                 (v) Urea

f. Weed                                                      (vi) Ploughing

 

Fill in the blanks

1. Soil ........................... plays an important role in plant growth.

2. ........................... available in soil leads to germination of seeds.

3. Water acts as a ........................... for absorption of water.

4. ........................... is the association of fungi with root.

5. ........................... produces ........................... in leguminous plants.

6. Indian soils are usually ........................... in inorganic matter as well as in ...........................

7. Repeated use of sodium nitrate fertilizer increase the ........................... of the soil.

8. The chemical used to destroyed weeds are known as ...........................

9. Rust is a disease of wheat crop caused by ...........................

10. 2,4-D, and MCPA both are example of ...........................

 

True and False

1. The chillies cultivated by sowing seeds directly into the soil.

2. Operation flood is otherwise called green revolution.

3. Removing chaff from the grains is called harvesting.

4. Chemicals that kill weeds are known as herbicide.

5. The undesirable plants growing in crop field are called crop.

6. Cattle feed includes roughage and concentrate.

7. Malathion is a rodenticide.

8. Manures can not restore soil structure.

9. Slow application of water drop by drop to the root zone of a crop. It is also called as drip irrigation.

10. Fertigation is the method of applying fertilizers through drip irrigation.

 

Match the column

a - (ii), b - (iii), c - (vi), d - (v), e - (iv), f - (i)

Fill in the balnks

1. Water 2. Moisture 3. Solvent 4. Mycorrhiza 5. Rhizobium, nodules 6. Poor, nitrogen 7. Alkalinity 8. Weedicides 9. Fungus (Puccinia10. Weedicides / Herbicide

True or False

1. F 2. F 3. F 4. T 5. F

6. T 7. F 8. F 9. T 10. T

 

Very short type Questions

1. Name two pesticides.

2. From where do the plants get carbon, oxygen and hydrogen ?

3. Which crop is generally grown between two cereal crops to restore the fertility of soil ?

4. Name a chemical fertiliser which can supply potassium as well as nitrogen.

5. Expand NPK.

 

Very short type Questions (Answers)

1. Malathion, DDT

2. Carbon from CO2, oxygen from air and hydrogen from water.

3. Leguminous crop

4. NPK

5. Nitrogen, Phosphorus, Potassium

 

SHORT TYPE QUESTIONS

1. How do biotic and abiotic factors affect crop production ?
2. What are the desirable agronomic characteristics for crop improvements ?
3. What are macro-nutrients and why are they so called ?
4. Why should preventive measures and biological control methods be preferred for protecting crops ?
5. What factors may be responsible for losses of grains during storage ?
6. How does the use of fertilisers improve crop production ?
7. How do insect-pests attack the crops ?
8. Write two advantages of using chemical fertilisers over manure.
9. Though fertilisers increase crop production, they are to be used in limited amount. Why ?
10. Why is chemical method of controlling pests not considered good ?
11. What are the various ways of controlling weeds ?
12. What are the advantages of using manures ?
13. Why do we irrigate our crops ?
14. Name the nutrients which plants get from air, water and soil.
15. Why are kharif crops more susceptible to infestation than the rabi crops ?
16. How do moisture and temperature affect the life of food materials ?
17. Why is it necessary to increase the production of crops ?
18. What are the basic objectives of mixed cropping ?
19. State any two advantages of mixed cropping.

LONG ANSWER TYPE QUESTIONS

1. Compare the use of manures and fertilisers in maintaing soil fertility.
2. Explain any one method of crop production which ensures high yields.
3. What are the advantages of intercropping and crop rotation ?
4. What is genetic manipulation ? How is it useful in agricultural practices ?
5. How do storage grain losses occur ?
6. What are the various ways of controlling weeds ?
7. What are the advantages of using manures ?
8. Differentiate between fumigation and spraying.

9. Explain how excessive use of nitrate fertilisers in agricultural fields affect human life.
10. How does manure differ from chemical fertiliser ? Mention two advantages of using chemical fertilisers over
manure ?

 

 Improvement in Food Resources

Q 1 What are the three stages at which improvement of crops can be done?

Q 2. Give two examples of each: (a) Cereals (b) Oilseeds (c) Fodder crops (d) pulses

Q 3 What is the method to get desired characteristics of two different species of plant in the same plant?

Q 4 What are the two agricultural seasons in India? Name the crops grown during each of the two seasons.

Q 5 What are the advantages of shorter duration of maturity of crops? 

Q 6 What are the desirable agronomic characteristics for fodder crops and for cereals?

Q 7 What are the biotic and abiotic factors that can cause harm to a crop?

Q 8 What are macro and micro nutrients required for the growth of plants?

Q 9 What are the benefits of manure?

Q 10 Write a short note on the two types of manure.

Q 11 What nutrients are provided by fertilisers?

Q 12 Why is there a need for organic farming?

Q 13 What are the various methods adopted in Organic farming?

Q 14 Why are irrigation systems needed in India?

 

0 thoughts on “Improvement In Food Resources Class 9 Assignment Of Deed

Leave a Reply

Your email address will not be published. Required fields are marked *