Cultivation and Management of Dwarf Apple Seedlings

Dwarfing apple seedlings is actually a planting technique of dwarfing and close planting on the basis of the original apple seedlings to reduce field operation, improve land resource utilization, and improve apple yield and quality. So how can we plant dwarf apple seedlings? How to cultivate and manage dwarf apple seedlings? Now let's take a look at the specific planting introduction.

1. Select varieties

To choose the varieties that dwarf apple seedlings, the first thing we have to consider is the environment of the planting place, because there are differences in the environment that different varieties adapt to. For example, it is suitable for planting M series varieties in Shandong, GM256 in Liaoning and SH40 in Chengde. In addition, the varieties of apples are also divided into early-maturing and late-maturing, while early-maturing varieties can choose No. 1 apple, Huayu apple and so on, while late-maturing varieties can choose Yanfu No. 8 and Yanfu No. 10.

2. Reasonable close planting

The planting density of dwarfing apple seedlings is a problem that we need to consider, to a certain extent, it can be said to be a little higher than ordinary apple seedlings, because it is the use of plant dwarfing to increase the planting density per unit area. In general, about 50 to 100 apple seedlings can be planted per mu, and the planting density is reasonably distributed according to different varieties of apple seedlings and the fertility of the soil.

3. Pruning and shaping

The most important point of dwarfing apple seedlings is the pruning and shaping of branches and leaves. In general, we use a natural happy tree, or an umbrella. This kind of tree has the advantages of integrity, robust growth, good light transmittance and large fruiting area. In pruning, we first retain the main branches, then trim the rest of the branches to promote the growth of secondary branches, and slowly cultivate tertiary and subordinate branches. When the crown of the apple tree is formed, we need to control the growth of the crown to prevent the branches and leaves from growing.

4. Fertilizer and water management

After dwarfing apple seedlings are planted, we need to manage the main fertilizer and water. When planting, we should apply sufficient base fertilizer, which is mainly based on rotten farm manure, combined with a small amount of compound fertilizer. After the survival of the plant, it is necessary to keep up with the fertilizer and water, so as to avoid the phenomenon of lack of water and fertilizer. The early fertilization was mainly based on nitrogen fertilizer, which promoted the growth of branches, cultivated the tree shape and maintained the tree potential. In the middle stage of apple tree growth, it is necessary to reduce the use of nitrogen fertilizer, avoid overgrowth, and increase the use of phosphorus and potassium fertilizer to promote flower bud differentiation and enter the fruiting stage as soon as possible.

5. Temperature management

The temperature of apple growth is very strict, and so are dwarf apple seedlings. In general, the temperature of apple growth had better not be higher than 35 degrees, the highest temperature is 30 degrees, but this kind of weather had better not exceed a month. In other words, the temperature suitable for dwarfing apple seedlings is about 20 to 28 degrees, and the temperature difference between day and night should be relatively large, preferably about 10 degrees, otherwise it will affect the growth of the apple.

The above is a brief introduction to the cultivation and management of dwarf apple seedlings by the editor, hoping to help you. If you have any questions, you can leave a comment below.