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Home » Class 8 » Crop Production and Management » Methods of irrigation

Methods of irrigation

Last Updated on June 30, 2020 By Mrs Shilpi Nagpal 3 Comments

Question 1 What are the various sources of irrigation?

Question 2 Describe the sprinkler system of irrigation?

Question 3 What are the advantages of sprinkler system of irrigation?

Question 4 Describe the drip system method of irrigation?

Question 5 What are the advantages of drip system method of irrigation?

Question 6 Name few traditional methods of irrigation?

Question 7 name few modern methods of irrigation?

NCERT Solutions Class 8 Science

Contents

  • 1 Sources of Irrigation
  • 2 Traditional method of Irrigation
  • 3 Modern methods of irrigation
  • 4 1) Sprinkler system
  • 5 2) Drip system

Sources of Irrigation

The various sources of irrigation are rivers, canals, wells, tubewell, dams, ponds, lakes, rain.

Traditional method of Irrigation

The various traditional method of irrigation are

1)Moat(pulley system)

2)Chain pump

3)Dhekli

4)Rahat(lever system)

Traditional method of irrigation are cheaper but less efficient.Pumps are commonly used for lifting water.These pumps run by electricity,diesel,biogas or solar energy.

When a pump is used to draw out water from a narrow well,it is called tube-well.They are used increasingly for lifting underground water to be used for irrigation in agriculture.

Modern methods of irrigation

The two main modern methods of irrigation are:

1) Sprinkler system

A main pipeline is laid in the field.Perpendicular pipes having rotating nozzles at the top are joined to the main pipelines at regular intervals.When water from a tube-well is allowed to flow through the main pipelines under pressure with the help of a pump,it escapes from the rotating nozzles.This water gets sprinkled on the crop plants as if it is raining.

Advantages

1)It is more useful for the uneven land where sufficient water is not available.

2)It is very useful for sandy soil.

2) Drip system

There is network of narrow pipes with small holes in the fields.When water flows through the narrow pipes,it fall drop by drop at the position of roots of the plants.This water is absorbed by the soil in the root zone of the plants and utilised by the plant.There is no wastage of irrigation of water.

Advantages

1)It provides water to plants drop by drop.So water is not wasted at all.

2) It minimises the use of water in agriculture.It is useful in those regions where the availability of water is poor.

See other topics from Chapter 1 Crop Production and Management
  • Crops
  • Types of Crops
  • Preparation of Soil
  • Sowing
  • Manures
  • Fertilisers
  • Crop Rotation
  • Irrigation
  • Weeding
  • Harvesting
  • Storage of Food Grains

Filed Under: Class 8, Crop Production and Management Tagged With: advantages of drip system, advantages of sprinkler system, drip system, modern methods of irrigation, sources of irrigation, sprinkler system, tube-well

About Mrs Shilpi Nagpal

Author of this website, Mrs Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed (I. P. University) and has many years of experience in teaching. She has started this educational website with the mindset of spreading Free Education to everyone.

Reader Interactions

Comments

  1. jeetendra s. Donde says

    September 17, 2020 at 5:52 pm

    Mam,
    YOU ARE DOING GOOD JOB ,HATS OFF TO YOU !

    Reply
  2. raj says

    October 2, 2020 at 3:09 pm

    Nice mam….. helpful for my exams

    Reply
  3. Roshni Singh says

    November 27, 2020 at 10:35 am

    Helped me a lot in short time revision of my exams and after reading your notes and the respective questions given I got full marks in my science exam !

    A heartful thankyou to you mam ,you are doing a great job

    Reply

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