According to the characteristics of flower bud jujube flower bud differentiation, flowering of the year, and the results of the current year, the management of the flowering jujube flowering period was mainly to promote flower growth and prevent pests, ensure normal flowering and appropriate results.
First, promote flowers to promote fruit
The flower bud differentiation of Jinsi jujube usually lasts from the end of May to the beginning of June. At this time, it is in a hot and dry season, and its climatic conditions are extremely unfavorable to the flower bud differentiation of Ziziphus jujuba. In the case of normal supplementation of water, some necessary chemical measures can be taken to promote the differentiation of flower buds and ensure the number of flowers. The specific approach is: in the early June preparation of 8-10ppm gibberellin solution, add appropriate amount of love more, or separately prepared 3000 times more love more than the solution, evenly sprayed on the crown (note: must be sprayed on the back of the leaves ), can have the effect of increasing the number of flowers.
Because of the lack of endogenous hormones, Jinsixiaozao can easily cause a large number of flowering and result in few or even inconclusive results. In order to increase the fruit setting rate, the purpose of high yield is often achieved by controlling the return of nutrients and supplementing endogenous hormones in actual production. The specific measures are as follows:
1. Control nutrient reflux. The current method used is mainly girdling, commonly known as "opening." The armor is generally carried out around June 10, and the armor width is determined by the strength of the tree, which is generally 3 to 5 mm. You must protect your mouth after armoring to protect against nail beetles. In general, the insecticide is applied on the surface of the mouth after drying on the second day after the nail opening. The selection of pesticides should be based on the principle of high efficiency, low toxicity and long effective period. After testing, Ruijinte and Ruidan are safe and effective agents, and one dose can protect a mouth from the damage of the nail beetle. Its mixing ratio is generally 300 to 500 times.
2. Add endogenous hormones. The endogenous hormone supplemented by flowering of the jujube of jujube is mainly gibberellin, ie 2 to 3 days after the armor is opened, a 10 to 15 ppm gibberellin solution is uniformly sprayed on the canopy. Production practices in recent years have shown that the use of gibberellin alone can improve the fruit setting rate, but the fruit preservation rate is low, which is mainly due to insufficient nutrient supply, resulting in shedding of young fruit. According to experiments, the addition of an appropriate amount of a plant growth regulator to the gibberellin solution can stabilize the fruit setting rate and increase the fruit retention rate. "Jin Ge" is a new type of gibberellin preparation that dissolves directly in water without alcohol or other solvents. After many years of practice, the effect is very remarkable. For weakly growing jujube trees, 2000 times of phosphoric acid can be added simultaneously. Hydrogen Potassium Solution It should be pointed out that, except in special drought years, the use of gibberellin to promote flower bloom usually takes only one dose, and the use of high gibberellin concentration or too many times not only does not promote fruit propulsion. The effect, on the contrary, will also result in the consequences of “fruiting a bunch of fruit and falling fruitâ€, causing a lot of nutrient loss to the tree, and is also extremely unfavorable to the growth and development of young fruit.
Second, pest control
Some diseases of Jinsixiaozao are infested during the flowering period, and some of them are transmitted by insects. Therefore, it is particularly important to control diseases and insect pests during flowering. The green-blind image can easily cause damage to the flowering period and it is extremely unfavorable for stable fruit setting rate. At the same time as destroying jujube flowers and young leaves, it also spreads certain harmful bacteria to plant tissues, causing plant tissues to become infected. In the flower bud differentiation period (early June), the use of insecticides to control green-lipped iridescent elephants is of great significance for flower protection and fruit promotion. After testing, the use of Ruidan 1000 times spray can ensure that the flowering period is not harmed by the green-clear phenomenon, control effect can reach 20 to 22 days. In order to prevent certain pathogenic bacteria from infecting at the flowering stage, "Antaisheng" 600 times fluid + Ruidan 1000 times fluid can be used to achieve the double effect of flower protection and disease prevention.
In addition, some jujube gardens have poor flower bud differentiation, poor pollination, and low fruit setting rate during production. The main reason for our investigation was the lack of trace elements boron. For these types of jujube gardens, measures are taken to supplement boron during flowering. In the selection of boron fertilizer, we must pay attention to the choice of chelated boron fertilizer, so that the jujube tree absorption. Commonly used in production "Ruipei boron" as gold silk jujube for boron purposes.
Single Arm Electric Medical Pendant,The control cabinet of the Tower Crane adopt the imported high-strength aluminum alloy of patent technology for the one-off extrusion molding, and the surface undergoes the primary oxidation treatment.The tray surface is non-slip. Mechanical friction damping brake.The imported electrical machine is adopted , and the rising and rotation function of the electric horizontal cantilever can accurately position without excursion.The gas pipeline, power supply and computer communication line are separately arranged without interference.
Single Arm Electric Surgical Pendant
Single Arm Electric Surgical Pendant,Single Arm Anesthesia Pendant,Single Arm Ceiling Pendant,Single Arm Medical Gas Pendant
Shandong Lewin Medical Equipment Co., Ltd. , https://www.lewinmed.com