The high temperature in summer will have a lot of adverse effects on the growth of plum trees, which is manifested by increased water transpiration, reduced soil moisture, leaves the leaves withered, curled or even shed. In severe cases, the trees will weaken or even die.
For the current high temperature and drought, experts suggest that fruit farmers should pay attention to proper and reasonable watering and supplementing the orchard. According to the growth of the fruit tree, the age and vigor of the fruit tree, the size of the fruit, appropriate phosphorus and potassium fertilizer (plum tree hard core) It is necessary to ensure the demand for P and K elements), or a balanced water-soluble fertilizer. When watering, it is recommended to use furrow irrigation or hole irrigation, and can not use flood irrigation to avoid the rapid absorption of water by the fruit, which will cause the fruit splitting phenomenon to affect the normal growth of fruit trees and cause serious consequences to fruit farmers.
At the same time, watering must take into account that the plum tree's fruits are swollen and cannot be allowed to swell too fast. At the same time, it is also necessary to pay attention to the calcium supplement of the plum tree to prevent the occurrence of related diseases. Ditch irrigation can be used for watering. The method is: open an irrigation ditch with a depth of about 60 cm at a distance of about 100-150 cm between the rows of the orchard. The width, depth and spacing of the ditch should be determined according to the actual situation of the tree body, and it cannot be blindly imitated according to the age of the tree. .
In addition, 4-6 weeks after the fruit is harvested, the soil is generally deeply converted at the end of June and early July, supplemented with organic fertilizer and special fertilizer for fruit trees; pay attention to the drainage and soil humidity of the park to avoid the occurrence of high temperature and high humidity; for plums Trees are reasonably pruned to improve the conditions of ventilation and light transmission and increase photosynthesis; timely treatment of diseased leaves, diseased branches and diseased fruits to reduce the source of infection, and use special agents for prevention and control.
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