The contrast experiments have been carried out to study the differences between level plant-ing

furrow and ridge planting

ridge planting and pile planting

intercropping and planting of thesame crop. The results were shown as follows: the marked increasing yield benefits of storingwater and retaining soil will be achieved after ridge planting and intercropping have been appliedin hillside fields. However

at present

there are 300 thousand mu hillside fields in this county

the authors suggested that the tillage techniques of storing water and retanining soil

such as fur-row and ridge planing.intercropping should be actively popularized before the slope land is ter-raced.