The flood irrigation techniques among the options provided are:
- Furrow irrigation: In furrow irrigation, small channels are created between crop rows and water is allowed to flow through these channels, flooding the soil.
- Basin irrigation: This technique involves creating small basins or depressions around individual plants or trees, allowing water to collect and gradually soak into the soil.
- Border irrigation: Border irrigation uses small ridges or borders to contain water, which is then released to flood the area between the borders, providing water to the plants.
These three techniques are examples of flood irrigation methods that involve the controlled flooding of the soil to provide water to crops or plants.
