Crop Production and Management [DELETED] — Science STD 8 — Question

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.