Planting apricot trees, autumn tubes, grasping three items

Apricot trees are the earliest fruit trees to bloom in spring, and the nutrients needed for the formation of floral organs are completed by the accumulation of trees in the autumn of the previous year, so good autumn management plays an important role in the floral structure and fruit setting of the following spring. The autumn tube of the apricot garden should pay attention to the following three items:

First, sparse skills and short cuts. Apricot is a strong light-loving tree species, and its own growth is very exuberant, which is easy to form competitive growth and make the fruit parts move outward, which is very disadvantageous to the formation of strong flowers and fruiting, so the fruit trees should be sparse mainly in the autumn tube after fruit picking. the pruning method of drawing large branches and depressing the height of the tree is adopted to promote the lower part and inner chamber to draw new branches and form short fruit branches and bouquet-like fruit branches. Of course, at the same time of thinning, we should pay attention to open the light path to ensure the uniform distribution of the retained main branches, and adopt the means of pulling, falling, distinguishing and supporting individual branches that can remain, so as to change the direction of the branches and make use of more fruit in the space; mop skirt branches, diseased weak branches and overdense branches can be removed at the same time.

Second, fertilization and irrigation. In autumn, the apricot orchard can be topdressing 50 kg of available nitrogen fertilizer or 50 kg of urea per mu, and appropriate amount of phosphorus and potassium fertilizer can be applied to planting big trees. 5 kg of nitrogen, phosphorus and potassium mixed fertilizer can be applied around the tree pit. It is good to encounter rain after application. If the drought is serious in summer and autumn, we can strive to irrigate it from August to September. But we should pay attention to the root under the tree can not be soaked for a long time, soaking for a long time is easy to hurt the root.

Third, pest control and leaf protection. Leaves are the nutrition factory for fruit trees, and complete and thick leaves are the guarantee of apricot fruit, which generally do not attract people's attention. Hot summer days combined with autumn drought sometimes occur, which is easy to cause red spider harm and spread, or continuous rain in late autumn. It is easy to cause fallen leaf diseases, resulting in poor flower bud differentiation, and can be sprayed in time with a mixture of carbendazim or carbendazim, tocopherol and other pesticides to prevent diseases and pests and protect leaves. In addition, spraying 0.3% urea is more beneficial to the tree.