Important Research Fields of High Technologies Applied to Water Saving Agriculture in the 21st Century

The high technologies, such as biological technology, information technology, as well as GIS, GPS and RS, are being successfully applied in water saving agriculture in industrialized countries. In the 21th century, agriculture in China must produce enough grain to feed its big population of 1.6 billion under a condition of quite limited amounts of water resources. Only applying more high technologies in agriculture can make the Chinese agriculture meet the requirements of food security. This article reviewed the current situations of the application of high technologies in water saving agriculture both abroad and in China and presented the important fields, key technologies and the problems to be solved. The prospects of commercialization of high technologies applied in water saving agriculture was also evaluated.