CROP PRODUCTION AFL

Q1 Kamlesh grows crop in a region of Rajasthan where there are no lakes and very little rainfall. During summers, the low availability of water limits the crop production. Which irrigation method Kamlesh should adopt to use water economically?

(a) drip system (b)lever system (c) pulley system (d) sprinkler system

• A

• B

• C

• D

Q2 The image shows the two common methods of irrigation.

Why a farmer should adopt sprinkler system than pulley system?

(a) Sprinkler system reduces wastage of water.

(b) Sprinkler system decreases water requirement of the crops.

(c) Sprinkler system increases water absorption capacity of the crops. (d) Sprinkler system provides excess water to the crops for high productivity

• A

• B

• C

• D

Q3 Which statement supports the activity of removal of weeds by the farmers from their fields?

(a) weeds decreases the life span of the crops

(b) weeds increases the chances of pests on the crops

(c) weeds increases water retention making plant roots to rot

(d) weeds absorb nutrients from the soil reducing nutrient availability to crops

• A

• B

• C

• D

Q4 Kalyan is a small-scale farmer who grows wheat in his small area of land. At the time of harvesting, which method should he use to separate wheat grains from chaff without spending huge amount of money on machines? (a) Combining (b) Harvesting (c) Threshing (d) Winnowing

• A

• B

• C

• D

Q5 A student does an experiment with wheat seeds. For the experiment, few seeds of wheat were kept in each of the four glasses that were filled with 200 mL of water and stirred well. After 10 minutes, the student measures the level at which seeds were found in all the glasses as shown

What can be concluded from the experiment?

(a) Seeds that sinks are healthy and clean (b) Floating seeds are damaged with holes (c) Bottom seeds are heavy as they absorbed more water (d) Seeds at the middle have small air bubbles thus lighter in weight

• A

• B

• C

• D

Q6 Which of the following is/are incorrect statements) regarding manure?

(i)  Manure enhances the water holding capacity of the soil.

(ii) Manure is nutrient specific i.e. supply a particular desired nutrient.

(iii) Manure decreases the number of friendly microbes.

(iv) Manure improves the texture of the soil.

(v) Manure is prepared by the decomposition of dead plant and animal matter.

A) (i), (iii) and (v) only

B) (v) only

C) (ii), (iii), (iv) and (v) only

D) (ii) and (iii) only

• A

• B

• C

• D

Q 7 The soil in Pot A is mixed with some green twigs and leaves.The soil in pot B is mixed with old cow dung while soil of pot C is mixed with urea. Pots are watered regularly.Which of the following will be observed after 10 days?

A)Lot of growth in pot A

B)Not much growth in pot B and a lot of growth in pot A

C)Lot of growth in pot B but very little growth in pot C

D)Very little growth in pot A but lot of growth in pots B and C

• A

• B

• C

• D

Q8 The different steps of agricultural practices are given below randomly.

Which of the following represents the correct sequence of these practices?

A) (ii) - (iv) - (vii) - (i) - (vi) - (iii) - (viii) - (v) - (ix)

B) (iv) - (ii) - (vii) -(i)-(vi)- (iii) -(viii) - (v) - (ix)

C) (ii) - (vii) - (iv) - (iii) - (i) - (v) - (vi) - (viii) - (ix)

D) (iv) - (vii) - (i) - (ii) - (iii) - (viii) - (ix) - (v) - (vi)

• A

• B

• C

• D

Q9 Select the incorrect match.

(i)   Kharif crop: Paddy and wheat

(ii) Rabi crop: Mustard and linseed

(iii) Storage of grains: granaries

(iv) Weeds: Amaranthus and Chenopodium

A) (i) only            

B) (ii) and (iii) only

C) (iii) only                      

D) (iii) and (iv) only

• A

• B

• C

• D

Q10 The cutting and gathering of crop after it is matured is called X. After this, grains are separated from the crop by a process called Y. Z is the process of separating the hay and chaff from the grains.Which of the following statements is/are correct regarding X, Y and Z?

 A) Z is done with the help of wind in which grains along with husk is allowed to fall from a height.

B) X is done mechanically by combine and manually by plough and harrow.

C) X is the process known as threshing whereas Y is the process known as winnowing.

D) Both (a) and (b)

• A

• B

• C

• D