The research conducts from 2006 to 2007 in Saibei Area of Hebei province, with alfalfa planted in 2006 and leymus chinens planted in 2007 as the research object. The influence of irrigation and water requirement on hay production, water use efficiency and water consumption coefficient of two plants are studied.
1.Alfalfa are irrigated 0mm, 200mm and 400mm respectively. It is found out that the ecology characteristics of two plants, such as hay production, water use efficiency and water consump...