1. Although agriculture had developed earlier in other parts of Tamil Nadu, it was only from the fifth or sixth century that this area was opened up for large-scale cultivation. Forests had to be cleared in some regions; land had to be levelled in other areas. In the delta region, embankments had to be built to prevent flooding and canals had to be constructed to carry water to the fields. In many areas, two crops were grown in a year. In many cases it was necessary to water crops artificially. A variety of methods were used for irrigation. In some areas wells were dug. In other places huge tanks were constructed to collect rainwater. Remember that irrigation works require planning – organizing, labour and resources, maintaining these works and deciding on how water is to be shared. Most of the new rulers, as well as people living in villages, took an active interest in these activities.
On the basis of your reading answer the following questions:
1. When did agriculture open up for large scale cultivation. 2. Name few methods used for irrigation.
3. What does irrigation work require?
4. What cultivation practices were adopted in delta regions?