What are the main points of fresh jujube pruning in summer? How can we increase production?

There are two kinds of red dates: fresh and dried. Generally, fresh ones are eaten as fruits, while dried ones are used for stewing soup, porridge, stewing desserts and so on. The taste of fresh red jujube is also very sweet, it tastes very crisp and not too hard. Pruning fruit trees is necessary and can play a role in increasing production and beauty. What are the key points for pruning fresh dates in summer? How can we increase production?

First, what are the main points for pruning fresh dates in summer?

Summer is the full fruit period of fresh jujube, the trees in the full fruit period should pay attention to adjust the relationship between vegetative growth and reproductive growth and maintain the tree potential. Adopt the combination of sparse and contraction, open the light path, draw light into the chamber, pay attention to the cultivation and renewal of the fruiting branch group, and prolong the fruiting life. Regulate the relationship between vegetative growth and reproductive growth. After entering the full fruit period, keeping the tree potential moderate is the basis of high and stable yield. For the trees with few fruit and overgrowth, the trunk or main branches should be peeled around and the opening angle should be adopted. For trees with more fruit, drooping branches and weak tree potential, it is necessary to shorten the cut.

1. Wipe the date head

Keep the jujube head with room for growth, and erase the rest from the base.

2. Pick the heart

When the retained jujube head is 3-5 secondary branches, one outward-facing secondary branch is selected for heart-picking treatment, and the big top is struck when the heart-picking is done, that is, when the top growth reaches more than 10 cm, the top growth point is removed.

3. Opening Angle

The base angle of the main branch is adjusted to 70 °and the waist angle to 70 °~ 80 °by means of brace, tension, top and hoist, etc. Attention should be paid to take protective measures to prevent splitting.

Second, how can fresh jujube increase production?

In addition to the method of pruning to promote the yield of jujube, the management of water, fertilizer and florescence are also the key points that should be paid close attention to.

Water and fertilizer management is a basic measure to increase tree growth and ensure yield, including base fertilizer and topdressing, as well as timely irrigation.

(1) Irrigation: sprouting water from river irrigation on April 10, 180 square meters of water per mu, double pipes of jujube trees under drip irrigation, dripping water 6-7 times during the growing period, dripping water per mu not less than 50 cubic meters at an interval of 12-15 days, controlling water and stopping fertilizer in the middle of August, due to the late winter water in our area, well irrigation can be used in early October.

(2) fertilization: fertilization is an important measure for the comprehensive management of jujube orchards. In order to ensure the early and high yield of red jujube, jujube trees must be fertilized by stages according to the needs of nutrients during the growing period on the basis of sufficient basal fertilizer.

(3) Management of flowering and fruiting stage

Spraying 0.2% urea + 0.3% potassium dihydrogen phosphate + gibberellin 15ppm (that is, 1g 75% gibberellin with 50 kg water) at the end of flowering (when shaking branches and falling flowers), spraying 2-3 times could increase the fruit setting rate by 1-2 times. Trace element boron plays an important role in flowering and fruit setting of jujube. Spraying borax or boric acid with 3000 times liquid at flowering stage can increase the fruit setting rate by 20%. For the jujube orchard with poor fruit setting in the early stage, spray the pollinator again, spray foliar fertilizer every 10-15 days, and use 0.3% potassium dihydrogen phosphate + 1000 times the liquid of agricultural amino acids.