How to improve the fruit setting rate of jujube trees? How to improve the fruit setting rate of juju

Choose the type of jujube tree in advance, and apply some water and fertilizer from time to time, and prune the branches and leaves of the jujube tree to ensure that the fruit setting rate of the jujube tree is improved.

In order to improve the fruit setting rate of jujube trees, it should be manually pollinated when the jujube trees bloom, and secondly, the excess fruits should be cut off when they bear fruit, so that the fruits can grow smoothly.

The topping should be stripped and topped, and attention should be paid to watering, pay attention to pests and diseases, keep the soil fertile, and maintain nutrients, so that the fruit setting rate of the jujube tree can be improved.

When the jujube tree is blooming, we should add more water and sprinkle some fertilizer, so that it can be improved, and it can also be used in the later stage. I did it more full.

At present, the measures to improve the fruit setting of jujube trees mainly include: 1. Ring stripping in the full flowering period, ring peeling on the main trunk or large branches, and the width of the peeling is 1 8-1 10 of the branch thickness2. Spray gibberellin during flowering, the concentration is every 100 kg of water plus gibberellin, and it can be sprayed once every 2-3 days; 3. Foliar fertilizer spraying, which can be sprayed alone or combined with gibberellin, such as borax and potassium dihydrogen phosphate, can be conditionally pollinated by bees, and the effect will be better.

It is important to choose a certain plan to increase the fruit set rate when growing the fruit, so as to ensure that the yield will be very high in the process and avoid some problems.

1. The temperature requirements of winter jujube, winter jujube has strong adaptability to low temperature during the dormant period, the absolute minimum temperature reaches -30, and winter jujube can also safely overwinter; At the same time, winter jujube is also more adaptable to high temperatures, and can also bloom and bear fruit when the absolute maximum temperature reaches 45. Therefore, winter jujube has a strong ability to adapt to low and high temperatures. The root system of winter jujube begins to be active and requires the soil temperature to reach more than 17, 20 begins to grow slowly, 22 25 enters the vigorous growth period, the soil temperature drops to 21, and the growth stops when it declines again.

Second, the requirements of winter jujube for water, winter jujube can be better adapted to the rainy and humid and arid and rainy climate, and there is a distribution of winter jujube in many areas with annual precipitation of 100 1200 mm. Among them, the annual precipitation between 400 and 600 mm is the best fruit quality, and it is most likely to form a special production area.

First of all, it is necessary to maintain the humidity of the air, and secondly, plant hormones can be sprayed.

If the jujube tree does not sprout, it is not dead, it is very likely to be suspended animation. Especially for jujube trees that have just been planted or transplanted, it is normal for them not to germinate when their root system is damaged. We can cut its branches to see, if the inside of its branches is wet, it means that it is still alive, and it will sprout after a while.

If it's dry, it's very agitated Kai may have died.

Management of jujube trees after transplanting.

1) Mulching warms and retains moisture to promote the growth of hair roots. In the year when the jujube tree was planted, due to poor management, there was often a "suspended animation" phenomenon of slow germination, and the masses called it "the jujube tree did not germinate and did not die". This phenomenon is mainly due to the dry and windy spring in the arid areas of northern China, which is easy to cause a large amount of water loss of the planted jujube trees.

The solution is to fill the soil with enough water after planting, loosen the soil in time after the water has penetrated into the soil, and then cover the tree tray with plastic film. This can not only effectively protect moisture, but also improve the ground temperature, promote early rooting and fast growth.

2) Make tree furrows to create protective rows. After planting, the tree furrow should be done in time, that is, along the jujube tree row to both sides, the width of the furrow is 1 meter, the width of the mounds is 30 cm, the height is 20 cm, and it is required to be steadfast. Doing a good job in tree furrows not only facilitates the management of jujube trees, such as cultivating, watering, weeding, pest control and other field operations, but also plays a protective role in young trees, which can effectively avoid the damage to young trees when agricultural machinery is operating in the field.

The furrow widens year by year as the canopy increases.

3) Timely fertilizer and water management. In order to accelerate the growth of newly planted jujube trees, when the new shoots grow to 10 15 cm, combined with watering or using ditching and topdressing after rain, kilograms of urea are generally applied to each plant to ensure the nutrient demand for the growth and development of new trees. Combined with pest control, dilute the fertile leaf series water-soluble fertilizer can be added for leaf spraying to promote the growth of young trees, generally 3 4 times.

4) Reasonable intercropping. Whether it is a jujube orchard planted in the form of jujube grain intercropping or pure jujube orchard, crops can be intercropped in the first year of planting. In order to ensure the closed growth of young trees, intercropping plants must choose dwarf stalks, it is best to choose peanuts, soybeans, mung beans and other legumes, and can also intercrop some melon and vegetable plants to improve economic benefits.

In this way, the input of fertilizer and water for intercrops will also promote the growth of jujube trees. After planting, watering or rainfall, weeding should be carried out in time to ensure that there is a good environment for the growth of young trees.

Jujube tree is a tree species that is easy to flower and bear fruit, and it has the intrinsic characteristics of early fruiting after grafting. However, in order to truly achieve the purpose of early fruiting and more fruiting, it is necessary to do a good job in the management of grafted trees.