Management Technology of Peach in greenhouse

First, early cultivation, early formation, and early fruit.

Because of the high density of peach trees in the greenhouse, in order to obtain higher income in the early stage, plastic surgery and flower breeding should be completed within a year, with rapid growth and early formation in the early stage, and control growth in the later stage. In plastic surgery, no matter it is slender spindle shape or "Y" shape, the output should be put in the first place. Under the premise of adequate supply of fertilizer and water, it is necessary to pick the heart many times and promote more secondary and tertiary branches, but also consider the permanent results, that is, do not start the cultured branches to maintain a certain growth potential. Otherwise, because the peach tree has high sprouting rate, strong branching ability and large growth of branches and leaves, if the lower branches are quickly shaded by the upper branches and leaves, it will be very difficult to reculture later. Therefore, when the height of the trunk is about 40 cm, the skeleton branches should be selected in time, and the branches that affect the growth of skeleton branches should be pulled, pinned and twisted to change their position.

Root control and crown control

Container cultivation and root pruning are effective methods to control root growth. Greenhouse peach for early benefits, peach trees can be planted in containers, such as flowerpots, woven bags, etc., because the nutritional area is small, the growth will not be too prosperous, less thinning and more coring can be adopted. For peach trees directly planted in the greenhouse, root pruning should be carried out after two years, that is, after fruit harvest, some fine roots should be cut off by digging trenches between rows and fertilizing, so as to play the role of root pruning.

Third, open the light path

Greenhouse cultivation belongs to high-density planting, coupled with the early use of paclobutrazol, the branches grow laterally and downward. If the tree-shaped spindle is shaped, it is easy to form the upper and outer branches to droop, covering the lower and inner branches, resulting in flattened results and low yield. Therefore, the upper dense branches should be thinned to open the light path. In addition, it is also necessary to "block" the strong branches, so that the lower branches get more nutrients and water, forming three-dimensional results.

IV. Thinning modification

In the first two years, the high density was to get the early yield, and with the increase of the number of branches, the canopy closed, so the individual plant and the whole structure should be adjusted by thinning, cutting, shrinking and other methods. From the horizontal direction, the trees and rows can be cut apart to improve the ventilation and light transmission conditions; from the vertical direction, one side can be thinned, there is time to "insert", there is no space to "give way", make full use of space, and if necessary, the trunk can be transformed into a delayed happy shape.

Fifth, fine winter scissors, diligent summer scissors

The main purpose of summer shearing of peach in greenhouse is to control the growth of branches, solve the problem of ventilation and light transmission, promote flower bud differentiation and fruit ripening. Erect branches and concomitant branches on the back should be erased as soon as possible; when the branches and orientation are not suitable, the angle should be adjusted by pulling the branches; when there is space, but when the new shoots are too strong, the coring and twisting shoots should be removed; too dense branches should be removed. After the fruit is harvested, it is necessary to retract and strongly cut the fruiting branches to promote the formation of the crown. In the fruit coloring period, it is also necessary to hang branches, pull branches and pick a small amount of leaves to improve coloring. The key point of winter pruning is to maintain the tree shape, select reserve branches, fine pruning all kinds of fruit branches, generally long fruit branches leave 4 Mel 8 pairs of flower buds; moderate fruit branches leave 3 Mel 5 pairs of flower buds; short fruit branches are not cut; bouquet-like fruit branches are retracted and pruned according to position, length and thickness of fruit-bearing branches. Pay attention to the cultivation and renewal of the branch group, and keep the prepared branches, otherwise the branches are easy to form bare legs and quickly weaken.