Question
What is irrigation ? Describe two methods of irrigation which conserve water .
✓
Answer
The process of supplying water to crop plants at regular intervals is called irrigation.
Water is important for the proper growth and development of all living organisms including plants. Plant contains nearly 90% of water.
Modern Methods of Irrigation
Traditional methods use manpower and animal power and there is a wastage of water also occur during irrigation. To overcome these problems, modern methods of irrigation are used. The main methods used are as follows
1. Sprinkler System
In this system, there is a main pipeline laid in the field joined with perpendicular pipes, having rotating nozzles on the top.
When water is allowed to flow through main pipe under pressure with the help of pump, it escapes from rotating nozzles and is sprinkled like rain over the crops. Sprinklers are very useful for lawns, coffee plantation and several other crops. This system of irrigation is useful on uneven land where sufficient water is not available.
2. Drip System
In this system, water flows through the narrow pipes and falls drop by drop just near the roots of plants.
In this method there is no wastage of water as water falls drop by drop, therefore this system of irrigation is very useful in regions where availability of water is poor It is the best technique for watering fruit plants, gardens and trees.
Water is important for the proper growth and development of all living organisms including plants. Plant contains nearly 90% of water.
Modern Methods of Irrigation
Traditional methods use manpower and animal power and there is a wastage of water also occur during irrigation. To overcome these problems, modern methods of irrigation are used. The main methods used are as follows
1. Sprinkler System
In this system, there is a main pipeline laid in the field joined with perpendicular pipes, having rotating nozzles on the top.
When water is allowed to flow through main pipe under pressure with the help of pump, it escapes from rotating nozzles and is sprinkled like rain over the crops. Sprinklers are very useful for lawns, coffee plantation and several other crops. This system of irrigation is useful on uneven land where sufficient water is not available.
2. Drip System
In this system, water flows through the narrow pipes and falls drop by drop just near the roots of plants.
In this method there is no wastage of water as water falls drop by drop, therefore this system of irrigation is very useful in regions where availability of water is poor It is the best technique for watering fruit plants, gardens and trees.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Write the difference between plant cell and animal cell.
Match the terms of column $A$ correctly with the phrases given in column $B.$
→| Column I | Column II | ||
| $(i)$ | Polyester | $(a)$ | Prepared by using wood pulp |
| $(ii)$ | Teflon | $(b)$ | Used for making parachutes and stockings |
| $(iii)$ | Rayon | $(c)$ | Used to make non-stick cookwares |
| $(iv)$ | Nylon | $(d)$ | Fabrics do not wrinkle easily |
Explain how you can locate the Pole Star with the help of Ursa Major.
Write two changes that happen during puberty to: $(a)$ both boys and girls $(b)$ boys only $(c)$ girls only.
→Name any four pollutants which cause water pollution. State any three ways of controlling water pollution.
What is the major cause of air pollution? Write the various tips for minimising the wastage of petrol/ diesel while driving vehicles.
Draw a labeled diagram of the human female reproductive system.
$1.$ Where in the human body does an egg $($or ovum$)$ get fertilized?
$2.$ Where does a fertilized egg $($or zygote$)$ develop into a baby in the human body?
→$1.$ Where in the human body does an egg $($or ovum$)$ get fertilized?
$2.$ Where does a fertilized egg $($or zygote$)$ develop into a baby in the human body?
With the help of an experiment, show that air is necessary for burning of a candle.
What are the major groups of microorganisms ?
Describe how, fossil fuels were formed.