Generally, after transplanting peach saplings, woody cherry trees have little damage to cherry saplings and less consumption. The management after transplanting and germination is mainly pest control. You can also add some foliar fertilizer when spraying, mainly using some trace elements. This foliar fertilizer can be used or not, but it must be replenished in time after summer. If malnutrition occurs at an early stage,
If big saplings are transplanted, the main management is the growth and development of the root system after transplantation. Not only organic liquid fertilizer to promote root growth, but also foliar fertilizer should be used. When transplanting big trees, the root system has a large cross section, which will seriously affect the growth of cherry trees, so the first year after transplanting is mainly the recovery and growth of the root system. When carrying out drug protection, we must add some foliar fertilizers to promote root growth and development, such as some plant growth proteins.
To sum up, young trees have low requirements for foliar fertilizer, so they are generally not used, but it is better to use it than not to use it. After transplanting, the larger cherry trees must use soil fertilization and foliar fertilization at the same time, and should be used several times to help the cherry trees recover quickly.
First, the foliar fertilizer of cherry trees before germination
Before cherry trees germinate in spring, spray 2%~3% urea solution on the branches once. The main function of urea spraying this time is to make up for the deficiency of storage nutrition of cherry trees, thus promoting germination, flowering and new shoot growth.
The second is the foliar fertilizer of cherry trees during leaf development.
0.2% urea, 0.2% potassium dihydrogen phosphate or other medium and trace elements (boron, magnesium) can be sprayed after the cherry tree leaves are unfolded, and it needs to be sprayed 2-3 times at this stage, and the general interval is about 10 day. The main function of spraying foliar fertilizer at this stage is to increase the leaf area and thickness of cherry trees, especially young trees, promote growth, enhance tree vigor and bear fruit as soon as possible.
Third, foliar fertilizer at flowering stage of cherry blossoms
Cherry trees can be sprayed with 0.3% urea, 600 times potassium dihydrogen phosphate thermometer and 0.3% borax solution at flowering stage. The role of foliar fertilizer spraying at this stage is to improve fruit setting rate and promote fruit development. Generally, it needs to be sprayed twice, with an interval of 10 day.
Fourth, the autumn foliar fertilizer of cherry trees.
Spraying foliar fertilizer on cherry trees in autumn can use 0.5% urea solution. The role of spraying is to prevent premature senescence of leaves, enhance the photosynthesis of cherry trees in the later stage and increase the storage nutrients of cherry trees.
Note: the best time to spray foliar fertilizer is afternoon and evening, and the best spraying position is mainly on the back of leaves.