Why is the winter jujube less fruitful?

In the harvest season of winter jujube, some jujube farmers see jujube tree knots of other people's dates, but jujube tree knots of their own homes are few or even unfruitful. For some reason, call the author. After analyzing the management process and communicating with relevant experts, the author believes that the main reasons for the lack of results and inefficiency are the following points.

1. There was less fertilization last year, especially with insufficient organic fertilizer. Since the jujube bud is also a period of rapid growth of jujube, the jujube head grows vigorously into the early flowering period. In a period of time, several organs of the jujube tree are in a vigorous growth stage at the same time, and there will be a phenomenon of competitive nutrition. The jujube tree mainly consumes the nutrients stored in the tree body from the sprouting stage to the fruit setting stage, that is, the nutrient that was produced and stored in the trunk, branches, and roots in the previous year. Therefore, if fertilization is insufficient in the previous year, it will result in inadequate nutrient reserves, weak tree vigor, and an outstanding contradiction between supply and demand of nutrients, resulting in less fruit and less fruit in the year.

2. Effect of fruit set rate last year. In the previous year, too many fruit set, without fruit thinning and fruit thinning, combined with inadequate fertilization, resulted in excessive nutrient consumption. The tree failed to store enough nutrients for the next year's growth, resulting in fewer or even fruitless fruits, resulting in large and small phenomena.

3. Caused by weather conditions. The flowering season of winter jujube is from early June to early July. In this period, the climate is dry and the relative humidity of the air is low, which will cause the pollen germination rate to decrease, and the fertilization to be poor, which will affect the fruit setting. High-temperature, low-humid dry hot air will cause a large number of dehydrated dried jujube flowers, reducing the fruit setting rate. Low temperatures and rainy weather can also affect fruit setting, and the weather in the flowering season is light and rainy, which is beneficial to fruitfulness.

To increase the fruit setting rate of winter jujube trees, in addition to the measures taken for opening the armor, the following points should also be noted.

1. Reasonable fertilization. In the dormant period of jujube tree, organic fertilizer was reapplied. In the early stage of germination, the early stage of full bloom and the rapid expansion of fruit, inorganic fertilizers such as urea and diammonium phosphate were topdressed and spraying fertilizer was applied to ensure the normal nutrition and reproductive growth of the tree.

2. Reasonably conduct thinning and fruit thinning. Although the implementation of technical measures to increase fruit set rate laid the foundation for high yields, excessive fruit set, exceeding the load of the tree, not only affected the fruit quality of the year, but also affected the growth of fruit trees in the coming year. In the flowering period, some of the weak flowers were removed, and the fruiting branches were repeatedly shaken on the result base branches, and some of the jujube fruits with fruit settling and lacking nutrients in the later period were removed, and then the remaining dates were removed. To eliminate insect pests, fruit shape malformations, fruit cracking fruit cracks, retain the fruit of the upper part of the date hanging, fruit weight ratio of 1:1.2 can be controlled, the basic single-hanging fruit. If the fruits are not evenly distributed, some of the single-hanging and double-fruits can be properly preserved to ensure the production of winter jujube.

3. Topping, wipe buds. By picking the heart of the jujube head and controlling the growth, nutrient consumption can be reduced, flower bud differentiation is facilitated, and fruit setting rate is improved. The newly-born jujube heads that are not in good position in the field and affect the growth of other shoots and have no space for development should be removed from the base to reduce the consumption of nutrients, thereby improving the ventilation and light transmission conditions of the crown, improving the photosynthesis of the whole tree, and increasing the nutrients. accumulation.

4. Other management measures. Sprinkling water during flowering: Spraying water during flowering period can increase air humidity, reduce burnt flowers, facilitate pollen germination and pollination, and increase fruit setting rate. The water spray period is from the initial flowering period to the flowering period, and the spraying time is the best in the evening. Because the humidity in the early evening is reduced, the evaporation is low, and the air humidity is maintained for a long time, which can provide good conditions for pollination. The number of water sprays depends on the weather, and the drought year should be sprayed several times, usually 3 to 4 times.

Flowering bee during flowering: In places where conditions permit, the bee is released at the flowering stage, which can increase fruit setting rate by more than twice, yield can be increased by 20% to 30%, and the jujube tree nearer to the beehive can achieve better pollination.

Flower spray fertilizer: spraying boron, zinc and other fertilizers can increase the fruit setting rate. Boron and zinc are indispensable trace elements for plant growth. Boron promotes the elongation of pollen tubes and facilitates fertilization.

Nursing pad is a disposable sanitary product made of PE film, non-woven fabric, fluff pulp, polymer and other materials.
Adult nursing pads are mainly used for people who have undergone surgery, those who are paralyzed, and those who cannot take care of themselves. The adult nursing pad is easy to replace, which can ensure that the mattress under the building will not be soiled.

80*90 Under Pads

Cloth Underpads,Absorbent Underpads,Protective Underpads,Washable Underpads For Adults

Shandong Kangshun Daily Products Co., Ltd , https://www.centurybenifit.com