Olive tree is a world famous high-quality woody oil-bearing tree characterized by "high yield, high quality and high benefit". It is a strong negative tree. It likes to grow in the land with good drainage. It is drought resistant and has strong adaptability to the soil. It can grow in the slightly alkaline sandy loam and the clay rich in calcareous. Its root is shallow and cold resistant. The general varieties can bear the low temperature of - 12 ℃, and the cold resistant varieties can bear the low temperature of - 18 ℃. Low temperature is a long-lived tree species with strong growth ability.
Watering: after cultivation, it is necessary to prevent water shortage due to long-term sun exposure, keep the soil moist and ensure sufficient water.
Fertilization: young trees are mainly fertilized with nitrogen fertilizer, and other fertilizers are properly matched. The principle is to apply thin fertilizer frequently, usually once every two months, or once before and after pumping. The results showed that nitrogen, phosphorus and potassium fertilizer were mainly applied to the trees. Under the drip of water around the tree crown, a ring ditch with a depth of 20 cm or two half moon shaped ditches were opened. If the fertilizer was liquid fertilizer, it would be covered with soil after it was dry, and then it would be covered with soil after the application of dry fertilizer.
The olive flowers planted in the courtyard need to be weeded regularly to avoid the overgrowth of weeds consuming the nutrition of the olive tree. Glyphosate or paraquat are good herbicides.
Herbicide has obvious damage to olive branches and leaves, and can not touch the branches and leaves when spraying. The spraying time is generally controlled before the flowering and seed setting of spring grass and in the late June.
After the seedlings are planted, they should be dried when they are 1-1.5m high. It is generally cut at 0.8m. In different directions, 3-5 branches were selected as the main branches. When the main branches were too long, they were cut short at 60 cm. Each main branch had 3 lateral branches, which were treated step by step to form early bearing and high yield crown.
The common disease of olive flower is anthrax, which can spray 600 times of copper oxychloride solution.
The common pests of olive flower are scale insects and wood lice. If pests are found, spray them with the following chemicals: kill 700 times of emulsifiable oil quickly, 1000 times of Omethoate and 1000 times of thiophanate.
