Q. Why is crop rotation necessary?

Correct Answer

To increase the fertility of soil

More Questions on Agriculture And Soil in India

  • Q. Turpentine oil is obtained from
    A)Eucalyptus tree
    B)Cashew nut shell
    C)Pine tree
    D)Cinchona tree
    Answer: Pine tree
  • Q. The Red soils develop a reddish colour due to ________
    A)Tropical monsoonal climate
    B)Deforestation and over-grazing
    C)The presence of potash and magnesia
    D)A wide diffusion of iron in ancient crystalline and metamorphic rocks
    Answer: A wide diffusion of iron in ancient crystalline and metamorphic rocks
  • Q. Which of the following groups of states produce rubber on commercial scale?
    A)Sikkim-Madhya Pradesh-Nagaland
    B)Maharashtra-Gujarat-Madhya Pradesh
    C)Kerala-Tamil Nadu-Karnataka
    D)Orissa-Madhya Pradesh-Maharashtra
    Answer: Kerala-Tamil Nadu-Karnataka
  • Q. What is the main advantage of transplantation method in rice cultivation?
    A)It helps in early harvesting
    B)This method ensures maximum utilization of land
    C)It is helpful in achieving an economical use of water and a higher yield of grain
    D)The draining of water from the field before harvesting is made easy
    Answer: It is helpful in achieving an economical use of water and a higher yield of grain
  • Q. Which of the following pairs of states and their important crops are correctly matched? 1. Kerala-Tapioca 2. Maharashtra-Cotton 3. West Bengal-Jute 4. Gujarat-Groundnut
    A)1, 3 and 4
    B)1, 2 and 3
    C)1, 2 and 4
    D)2, 3 and 4
    Answer: 2, 3 and 4
  • Q. The Practice of shifting cultivation is used in
    A)Coastal Tamil Nadu
    B)Himachal Pradesh
    C)Central Highlands
    D)Nagaland
    Answer: Nagaland
  • Q. BT seed is related to
    A)Cotton
    B)Rice
    C)Wheat
    D)Oilseed
    Answer: Cotton
  • Q. Which State has the largest number of sugar mills?
    A)Tamil Nadu
    B)Punjab
    C)Haryana
    D)Uttar Pradesh
    Answer: Uttar Pradesh
  • Q. Soil of Western Rajasthan have a high content of
    A)Nitrogen
    B)Aluminium
    C)Calcium
    D)Phosphorus
    Answer: Calcium
  • Q. Which of the following is the main spice producer?
    A)Coromandal coast
    B)Deccan Trap
    C)Malabar coast
    D)Sunder delta
    Answer: Malabar coast
  • Q. Which of the following is the most fertile soil in India?
    A)Red soil
    B)Black soil
    C)Alluvial soil
    D)Laterite soil
    Answer: Alluvial soil
  • Q. “Blue Revolution” is related to
    A)Oil production
    B)Fish production
    C)Milk production
    D)Food production
    Answer: Fish production
  • Q. The important feature of shifting cultivation is ________
    A)Change of cultivation site
    B)Cultivation by transplantation
    C)Cultivation of Leguminous crops
    D)Rotating of crops
    Answer: Change of cultivation site
  • Q. Which of the following is NOT a cash crop?
    A)Coffee
    B)Tobacco
    C)Cotton
    D)Bajara
    Answer: Bajara
  • Q. Peaty soil is found in ________
    A)Assam
    B)Kerala
    C)Kashmir
    D)Gujarat
    Answer: Kerala
  • Q. Which state in India is known as “Rice Bowl”?
    A)Andhra Pradesh
    B)Kerala
    C)Karnataka
    D)Tamil Nadu
    Answer: Andhra Pradesh
  • Q. Which type of soil retains maximum water?
    A)Loamy soil
    B)Sandy soil
    C)Clayey soil
    D)Rocky soil
    Answer: Clayey soil
  • Q. On the basis of the process of their formation, which’ of the following soils is formed differently from the other three?
    A)Bhabar
    B)Khadar
    C)Bhangar
    D)Regur
    Answer: Regur
  • Q. Which one of the following is the correct sequence of crop rotation with a view to increasing soil fertility?
    A)Barley, Pea, Wheat, Potato
    B)Wheat, Potato, Barley, Pea
    C)Potato, Wheat, Pea, Barley
    D)Pea, Barley, Wheat, Potato
    Answer: Barley, Pea, Wheat, Potato
  • Q. The following are the major oilseeds produced in India: 1. Sesamum 2. Mustard 3. Groundnut 4. Soyabean Which one of the following is the correct sequence of the descending order of the quantity of their production?
    A)2, 4, 3, 1
    B)1, 2, 3, 4
    C)3, 2, 4, 1
    D)3, 4, 2, 1
    Answer: 3, 4, 2, 1

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