Main irrigation canal is the canal that delivers water to the lands to be irrigated and is composed of the off-load part (from the headworks to the head of distribution canals) and working part where distributing conducting canals branch off from the main canal.

The Main Canal and Irrigation

The main canal is a major component of an irrigation system. It is constructed to carry water from a water source to the fields where it is needed for crop growth. However, the main canal itself is not supposed to do any irrigation. Instead, it is designed to distribute water to the minor and major distributaries.

Water Course

Water course refers to the smaller channels that are constructed to distribute water from the main canal to the fields. These channels are designed to provide water to specific fields or groups of fields. The water flows through these channels by gravity.

Major Distributary

Major distributary is a channel that is larger than a minor distributary. It is constructed to distribute water from the main canal to the fields that are located further away. Major distributaries are designed to carry a larger amount of water than minor distributaries.

Minor Distributary

Minor distributary is a channel that is smaller than a major distributary. It is constructed to distribute water from the main canal to the fields that are located closer to the main canal. Minor distributaries are designed to carry a smaller amount of water than major distributaries.

Conclusion

In summary, the main canal is not designed to do any irrigation but to distribute water to the minor and major distributaries. The water course is the smaller channel that distributes water from the main canal to the fields. Major and minor distributaries are channels that distribute water from the main canal to fields located further or closer to the main canal, respectively.

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