THE RAINWATER HARVESTING TECHNOLOGY APPROACH FOR DRYLAND AGRICULTURE IN SEMI ARID LOESS PLATEAU OF CHINA
半干旱黄土高原集水高效旱地农业的发展

The traditional water soil conserving agriculture has been developed for several decades.However,its regulative roles in water,fertility and temperature,were very limited.We think that the practicable approach is to harvest and stored rainwater artificially,and to supply limited irrigation at the key stage in crop development.This paper reviewed the research progress in rainwater harvesting technology applied in crop production.It is suggested that this technology will become one of the major directions of dryland agriculture in Northwest China.