The lecture given by James Adkins was talking about irrigation system. As the beginning of his speaking, he gave an interesting history about irrigation system. The irrigation system has been existed for thousand years  since Mayan empire. He described how Mayan people utilized Nile River and their irrigation system. Since then, the irrigation system became more efficient and productive. Agriculture is an important industry comparing with other industries. As agriculture develops, the need for water in agriculture increase rapidly. Therefore, the update of irrigation system become more important than before, because it helps to save water resource efficiently. Also, he introduced different varieties of irrigation ways  such as sprinker irrigation,surface irrigation and sub irrigation. Although the cost of irrigation system is not cheap, even expensive, it improves the efficiency of Agriculture and represent the Agriculture has been developing a new mode which will not need large amount of labors in the future.