At present, there are many varieties of plums. When planting plums, we should choose li miao with pure varieties, excellent varieties, developed roots, full flower buds, robustness and no pests and diseases. When planting, we should make rational use of land resources and control the permeability of fields. Generally, the row spacing of each plum tree is about four meters, and the spacing between trees is two to five meters.

Step 2 plant pollination trees

In order to improve the fruit setting rate and quality of plums, it is necessary to allocate the number of pollination trees reasonably when planting. Generally, planting is carried out according to the ratio of three to one, four to one and eight to one. There is also the best variety of plum trees planted, and single variety is not the best planting scheme. We can use black amber, black gem, beautiful plum, American late-maturing plum, royal gem and other varieties to plant.

3, flower and fruit period management

When plum blossoms encounter rainy weather, in order to prevent the rain from washing away pollen and affecting pollination, a film can be covered on the crown to cover the rain, and of course pollen can be collected for artificial pollination. In the flowering period of plum, it is necessary to properly sparse flowers, and to remove some flowers that are not well developed, damaged by pests and diseases, and flowers that grow too densely. After fruit setting, in order to ensure the yield and quality of plums and reduce fruit drop, it is necessary to thin the fruit, and it is necessary to thin the deformed fruit, diseased fruit, dense fruit and weak fruit. Don't be reluctant.

Step 4 trim and reshape

In the process of plum tree growth, reasonable pruning should be carried out according to age, tree potential, growth stage and plum tree variety. And you can't prune blindly, otherwise it will affect the yield and quality of plums. In the young tree period, it should be pruned frequently to form a complete tree shape, and at the same time, it is necessary to dwarf the tree body and expand the crown as much as possible. Adult plum trees need to control the tree vigor, and carry out proper pruning, thinning and cultivation to keep the tree vigor and ensure the yield.

5, light adjustment

The influence of light on the growth of plums is also very great. In the process of fruit tree growth, we are accused of reasonable control of branch spacing, which can enhance the ventilation and light transmission of the crown. Secondly, proper shading should be carried out in summer, and the light transmittance should be controlled at around 30%. When the sunshine is mild and the light intensity is weak, the light transmittance can be increased appropriately, and the light transmittance can reach about 60% ~ 80%. However, the demand for light during fruit ripening is great, and it should be controlled at least above 85%.

6. Temperature and humidity management

During the growth of plum trees, the management of temperature and humidity is very important. During the flowering period of plum trees, the temperature should be controlled at 20 to 25 degrees, which is beneficial to the spread of pollen. In the process of fruit growth and development, there is no strict requirement on temperature, as long as the minimum temperature is not lower than ten degrees. Finally, the humidity in the growth and development period of plums is generally around 50%, the humidity in the flowering period is 60%, and the humidity in the fruit growth period is between 40% and 50%.