Essentials of Apple Tree Management in Early Spring

Spring is the first technical link of apple tree production. It is an important period for apple tree sprout, flowering, and fruit setting. The quality of its management directly affects the fruit yield and quality of the year. In combination with the current production of apple trees, the following technical management tasks should be focused on in the spring.

Pest control: clear the garden. For those who did not complete the previous year's garden cleaning work, they should be completed as soon as possible. Weeds, fallen leaves, stubs, dead fruit, waste fruit bags, cut off diseased and insect branches and scraped old cockles, etc. are all cleared out of the orchard, and they are buried or burned intensively to eliminate the source of overwintering diseases and insect pests and reduce the base of diseases and pests. Spraying stone sulfur mixture, spraying 3 to 5 bumedus stone sulfur mixture during apple tree germination period, can prevent and cure dry apple rot, apple powdery mildew, apple ring disease, apple anthracnose, apple tree rot and hawthorn red Spiders, scale insects and many other pests and diseases have a great effect on controlling pests and diseases throughout the year. Spraying requires meticulous, uniform and thoughtful.

Plastic trimming: Plastic trimming is done before the apple tree sprouts. Young tree pruning. The main task of young tree pruning is to select the remaining bones, cultivate the tree skeleton, and quickly expand the crown. At the same time, it is necessary to make full use of the auxiliary tree to relax the tree and promote early fruiting and early yield. Follow the pruning principle of "pruning the tree, reshaping with the branches, cutting lightly and sparsely, leaving more branches". The pruning of adult trees, the tree tends to be relaxed during the full fruit period, the growth of new shoots is reduced, and the growth and fruit of the tree are in a relatively balanced state. At this time, if the management is not proper, the phenomenon of large and small fruit is easy to occur. Body light, cultivation and rejuvenation of branch groups and adjustment of appropriate flowering branch ratio.

Re-cutting before flowering: Re-cutting before flowering. The saplings are mainly thin-cut and light-short-cut, and the short-and-medium-cut are rarely used to ease the growth potential and promote flowering and fruiting. In addition to thinning out weak branches, weak trees are often used for short and medium lengths to help restore tree vigor. For cultivars with high germination rate and strong branching ability, use light and short stubs instead of medium and short stubs to facilitate flower bud differentiation. For cultivars with low germination rate and weak branching abilities, medium and short stalks should be appropriate to increase branch density Conducive to the expansion of the canopy. In addition, it is necessary to remove the flower buds, branches or weak branch groups that are left due to inaccurate judgment during winter shearing, and use the medium and long fruit branches and short fruit branches to bear fruit; shrink the flower branches and the weak branches after fruiting appropriately.

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