Tag: fertility of the soil

Questions Related to fertility of the soil

Selection of crops is done on the basis of

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

  1. Temperature

  2. Soil condition

  3. Land

  4. None of the above

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Correct Option: B
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. 

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

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

  1. Monocropping

  2. Crop rotation

  3. Multiple cropping

  4. Field fallow

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Correct Option: D
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. 

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

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

  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

Show answer
Correct Option: D
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.

What is the advantage of crop rotation?

evs fertility of the soil crop yield improvement food supply crop improvement methods and organisations

  1. Getting different kinds of crops

  2. Increasing the quality of minerals

  3. Increasing the fertility of soil

  4. Increasing the quality of proteins

Show answer
Correct Option: C
Explanation:
  • Crop rotation is a traditional practice of growing different crops in the same area, so as to increase the fertility of the soil. 
  • This process helps to build up the lost nutrients of the soil and when the rotation is done with growing cereals, it replenishes the nitrogen levels of the soil because crop rotation is mostly done by using legumes and paddy crops.
So, the correct answer is option C.