China goes for new water-saving irrigation system
China has begun changing from its old way of flooding fields to a new water saving irrigation system, which was being used on about 15.3 million hectares of land at the end of 1998, according to the
China has begun changing from its old way of flooding fields to a new water saving irrigation system, which was being used on about 15.3 million hectares of land at the end of 1998, according to the