Question

One of the very important agricultural practice, 'the crop rotation', is usually adopted by our farmers

• A. To harvest two different crops from the same field at the same time
• B. To increase the mineral elements in the same field
• C. To increase the nitrogen contents
• D. Both B and C

Answer 1

Answer: (D)

Both B and C

Crop rotation is a systematic approach to deciding which crop to plant where in your vegetable garden from one year to the next. Crop rotation is very important to organic farmers who grow crops on a large scale and of varying importance to home gardeners. Rotation of crops improves the fertility of the soil and hence, brings about an increase in the production of food grains.
Rotation of crops helps in saving on nitrogenous fertilizers, because leguminous plants grown during the rotation of crops can fix atmospheric nitrogen in the soil with the help of nitrogen fixing bacteria.
Rotation of crops help in weed control and pest control. This is because weeds and pests are very choosy about the host crop plant, which they attack. When the crop is changed the cycle is broken. Hence, pesticide cost is reduced. Crop rotation adds diversity to an operation.

Thus, the correct answer is option D.