Scientific irrigation can effectively maintain the good state of water, fertilizer, gas, heat and other phases in soil. It has many advantages, such as water saving, labor saving, energy saving, fertilizer saving, and income increasing. It is gradually recognized and used by everyone.
In modern times, with the rapid increase of population and increasingly developed economy, the prominent contradiction between supply and demand of water resources also reflects the worldwide irrigation industry.In addition, there are problems of further reducing construction and operation cost, improving irrigation efficiency and preventing salinization and swamping of irrigated land.The serious salinization of soil in shouguang, shandong province, which is the hometown of vegetables in China.
On the other hand, many water-saving irrigation projects currently have serious problems of construction and no use. Many countries have shifted the focus of irrigation development from developing new irrigation areas to rebuilding old ones and strengthening irrigation management.
On the basis of absorbing the achievements of modern science and technology, irrigation technology will develop in the direction of water saving, optimal scheduling, modern management and monitoring and forecasting.In the northwest, north China and parts of northeast China, where water resources are in serious shortage, implementing water-saving irrigation and establishing water-saving agriculture have become urgent affairs.The development of scientific irrigation methods is also needed in modern facility agriculture, horticulture and garden construction in east China and south China.