Research on Cultivation Techniques for High and Stable Yield of Olea europaeal

The research on the cultivation techniques for the high and stable yield of olive,conducted at Yuan county of Hubei province,Xichang of Sichuan province and Wudu county of Gansu province from 1988 to 1993,showed that the average 5 year's mean fruit yield of 3 olive varieties(Frantoio,Chenggu No.31 and Chenggu No.32)at the age of 10～14 was 5 066.3 kg·hm-2·a-1,which was 3.6 times as high as that of the control.Meanwhile,the criteria of soil physical and chemical properties were offered for the high and stable yield of the olive fruit,and the related integrated cultivation measures,such as soil moisture and fertility management,tree shaping and pruning were recommended.