Tag: rotation of crops

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Questions Related to rotation of crops

Multiple choice botany reproduction in angiospermic plants patterns of cropping rotation of crops cropping patterns

Production of plant without fertilization is done by

  1. Vegetative propagation

  2. Transplantation

  3. Grafting

  4. Both A and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In plants, vegetative propagation is a type of asexual reproduction in which a new plant develops from a vegetative part of plant. This vegetative part is basically a stem, root or any other part of plant which have tendency to reproduce.

Thus, the correct answer is option D.

Multiple choice evs fertility of the soil patterns of cropping rotation of crops cropping patterns common irrigation systems

Selection of crops is done on the basis of

  1. Temperature

  2. Soil condition

  3. Land

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Selection of crops for rotation depends on soil condition, moisture condition, length of rainy season, type of inputs available (irrigation, fertiliser, pesticide, labour and machine power), risk involved, duration of crop (annual, biennial or perennial) and marketing and processing facilities. 

Multiple choice biology fertility of the soil patterns of cropping rotation of crops cropping patterns common irrigation systems

Which of the following agricultural practices keeps the fields free for a season allowing replenishment of the lost nutrients?

  1. Monocropping

  2. Crop rotation

  3. Multiple cropping

  4. Field fallow
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The farm land is ploughed and then not used for the cultivation of the crops for some time. This helps in the land to gain the fertility again and the method is known as field fallow. This provides the land some time to replenish its nutrients so that the next round of crops can grow properly.

Thus, the correct answer is option D. 

Multiple choice biology fertility of the soil patterns of cropping rotation of crops cropping patterns common irrigation systems

Which of these is/are the advantages of crop rotation?

  1. It prevents the depletion of selective nutrients

  2. It prevents the building up of diseases and pests of a particular crop

  3. It enhances the production by increasing the soil fertility

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The crop rotation is a pattern of growing a series of different types of crops in the same area in the sequential season. It is a method of replenishment of nutrients by the regular succession over the same field. It enhances the health of crops and minimizes the amount of pest. Thus, the correct answer is option D.

Multiple choice biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

Which cropping method involves the successive growing of different crops in the same field in a definite pattern?

  1. Mixed cropping

  2. Crop rotation

  3. Inter cropping

  4. Mixed farming
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Intercropping is the practice of growing two or more crops on the same piece of land in alternate rows. It increases the land productivity and acts as an insurance for the farmers during the crop failure.

So, the correct answer is option C.

Multiple choice biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

Which cropping method involves growing two or more crops in definite row pattern?

  1. Intercropping

  2. Mixed farming

  3. Mixed cropping

  4. Crop rotation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Intercropping is a cropping practice that involves growing two or more crops in proximity in different rows. This practice of cultivating different crops gives higher income than the sole cropping. Intercropping maintains the soil fertility and reduces the soil runoff. 

Thus, the correct answer is option A. 

Multiple choice biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

Which of these statements is true about intercropping?

  1. Seeds of two crops are mixed before sowing.

  2. Harvesting and thrashing are not possible separately.

  3. Maximum utilisation of nutrients supplied.

  4. There are set pattern of rows of crops.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Intercropping is growing two or more crops simultaneously in the same field in a definite pattern which avoids the competition between both the crops. The sowing time of crops in this pattern may be the same or different.

Multiple choice biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

Which of the following terms is used for raising both plant crop and livestock on farm?

  1. Mixed farming

  2. Intercropping

  3. Monocropping

  4. Crop rotation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mixed farming is a method of agriculture which involves cropping as well as raising livestock. For example growing of cereal crops with cattle farming as cattle excrete nitrogenous waste that can be used as manure for cereals whereas waste from crops is used as fooder and reduces the use of artificial fertilizers.

Multiple choice biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

Which of the following disease in paddy crop is prevented by cultivating black gram or groundnut after paddy? 

  1. Tungrovirus disease

  2. Spotted bole worm and dried disease

  3. Mosaic disease

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A.Tungro virus disease is transmitted by leafhoppers, wherein the most efficient vector is the green leafhopper,

B. Spotted bole worm and dried disease - This causes drying and shedding of terminal shoots before flowering. ... Damage is caused by the larvae of the spotted bollworm, Earias vittella, a common pest.

C.Mosaic viruses are plant viruses that cause the leaves to have a speckled appearance

So, the correct option is 'Tungro virus disease'.
Multiple choice biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

Which of the following statements is/are correct regarding mixed cropping

(I) There is a definite pattern of sowing seeds.
(ii) It increases biodiversity.
 (iii) It removes some nutrients specifically
 (iv) Outbreaks of pests and diseases can spread very rapidly.
 (v) The crops with different maturation times are grown together. 
 (vi) Same fertilizers and pesticides are used for all crops
 (vii) The risk of total crop failure due to uncertain monsoon is reduced.    

  1. (ii), (v), (vi), (vii)

  2. (i), (ii), (v), (vi)

  3. (iii), (iv), (v), (vi)

  4. (i), (ii), (iv), (vii)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Mixed cropping is also known as polyculture, inter-cropping or co-cultivation.
  • It is a type of agriculture technique in which two or more plants are planted simultaneously in the same field, interlinking the crops so that they grow together.
  • Benefits of mixed cropping are:-
(1) It saves space as crops in the same field might ripen at different seasons.
(2) It provides various environmental benefits.
(3) A balance of input and outgo of soil nutrients.
(4) It helps in the suppression of plant diseases, suppression of weeds and insect pests.
(5) The risk of total crop failure due to uncertain monsoon is reduced.    

The correct answer is OPTION A.