Tag: sustainable agriculture

Questions Related to sustainable agriculture

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

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

  1. Mixed cropping

  2. Crop rotation

  3. Inter cropping

  4. Mixed farming

Show answer
Correct Option: C
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.

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

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

  1. Intercropping

  2. Mixed farming

  3. Mixed cropping

  4. Crop rotation

Show answer
Correct Option: A
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. 

Which of these statements is true about intercropping?

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

  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.

Show answer
Correct Option: D
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.

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

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

  1. Mixed farming

  2. Intercropping

  3. Monocropping

  4. Crop rotation

Show answer
Correct Option: A
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.

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

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

  1. Tungrovirus disease

  2. Spotted bole worm and dried disease

  3. Mosaic disease

  4. None of the above

Show answer
Correct Option: A
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'.

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.    

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

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

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

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

  4. (i), (ii), (iv), (vii)

Show answer
Correct Option: A
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.

Growing two or more crops in definite row pattern is called

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

  1. Crop rotation

  2. Inter-cropping

  3. Mixed cropping

  4. Intra-cropping

Show answer
Correct Option: B
Explanation:
Inter-cropping is growing two or more crops simultaneously on the same field in a definite pattern. A few rows of one crop alternate with a few rows of a second crop. The crops are selected such that their nutrient requirements are different. This ensures maximum utilization of the nutrients supplied, and also prevents pests and diseases from spreading to all the plants belonging to one crop in a field. Thus, both crops give better returns.
So, the correct answer is 'Inter-cropping'.

Horti-pastoral farming refers to

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

  1. Growing food and fodder

  2. Growing mixed crops

  3. Growing fodder and rearing cattle

  4. Growing fruit trees and fodder simultaneously

Show answer
Correct Option: D
Explanation:

Growing fodder grass for cattle along with fruit trees or growing fruit trees while rearing cattle is known as horti-pastoral farming. It is adopted as an alternative land use system in North India. Thus, the correct answer is option D.

Growing two or more crops but in definite row pattern is known as

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

  1. Intercropping

  2. Crop rotation

  3. Mixed farming

  4. Mixed cropping

Show answer
Correct Option: A
Explanation:

A- Inter cropping is farming in which two or more crops are grown together indefinite pattern at same time on same piece of land for greater yield. Inter cropping maintains soil fertility and reduces soil erosion and depletion.

The crops are selected for inter-cropping and their nutrient requirements are _____

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

  1. Similar

  2. Different

  3. No change

  4. None of these

Show answer
Correct Option: B