Abstract: The experiment was conducted to determine the influence of different regulation and control methods of soil moisture,such as plastic film mulching,covering grass under trees,growing grass under trees,irrigating regularly,loosening the soil under trees,on quality of fruit in a nonpublic nuisance crisp pear garden in the area of Old Course of Yellow River.The results showed that the soil moisture was moderate for the tree growth by plastic film mulching and covering grass under trees,which had led to higher yield and quality of the fruit than that of other treatments.

Key words: Crisp pears, Crisp pears, Regulation and control of soil moisture, Quality