1, natural conditions: olive is the Mediterranean's main fruit species, requires a relatively dry growing environment, soil neutral alkaline. Guizhou Sichuan is a subtropical monsoon climate, humidity, and the origin of the difference is obvious;

2, the lack of good seed: early Guizhou Sichuan olive is also preferred to some of the good seed, such as Fo Ao, Pi Chili and so on, but due to the late did not continue to carry out the selection of the low period of olive scientific researchers have left, varieties of selection and breeding of the work of the generation. However, in terms of the city, there are still fewer good varieties suitable for local natural conditions;

3. Weak scientific and technological support: the scientific and technological work of olive in Guizhou-Sichuan area is basically interrupted, and the current cultivated varieties are introduced from Sichuan and Gansu, etc. The cultivation, maintenance and care of olive trees are still in a very poor condition. In the cultivation, nurturing care, pest control, harvesting, processing, etc., the scientific and technological support is weak, base construction and operation level is not high.