NCERT Question 6 - Chapter 1 Class 8 - Crop Production and Management

What is irrigation? Describe two methods of irrigation which conserve water:

Answer

Supply of Water to plants at regular intervals is called irrigation

Two methods of irrigation which conserve water are :

1. Sprinkler system
   This system is more useful on uneven land where water supply is less. In this method, there is a pump, different perpendicular pipes and nozzle
   When pump is opened, water sprinkles out from different nozzles. It gets sprinkIed on the crop as if it is raining. Sprinkler is very useful for lawns, coffee plantation and several other crops.

2. Drip system
   In this system, the water falls drop by drop directly near the roots. So it is called drip system. It is the best technique for watering fruit plants, gardens and trees. Water is not wasted at all. It is a boon in regions where availability of water is poor.

Innovative Methods are used like

Sprinkler Methods

It has a  pump,different perpendicular pipes and nozzle

When pump is opened,water sprinkles out from different nozzles

It is used for

Lawns

Coffee Plantation

Drip System

Water drips drop by drop to root of plant directly

There is no wastage of water in this case

It is used in case of  watering of

fruits

trees

cardens

Loosening of soil help in growth of earthworms.Earthworm are friends of farmers.They help in adding humus to soil