Ginkgo biloba, also known as ginkgo and Gongsunshu, is a gymnosperm plant and is the only living fossil plant in China. It has strong adaptability, wide use, strong disease resistance, and easy management. It is an excellent tree species that integrates ecological, social, and economic benefits into sustainable use. Planting ginkgo trees in the fall can effectively advance a long slow seedling process for several months. In particular, for transplanting ginkgo seedlings, it can fully reduce the seedling time by one year. Now its efficient cultivation techniques in the fall are described as follows:

First, choose garden fertilization. More than 60 cm soil layer, PH value of 5.5-7.5, good drainage, more fertile loam or sandy loam soil. Every 667 square meters of basal fertilizer 9000 kilograms, deep turn 40 centimeters, before sowing every 667 square meters of phoxim 5 kilograms, 13 kilograms of ferrous sulfate, leveling the ground, the whole thing to the width of 1.0-1.2 meters, length 10 The meter is about 畦.

Second, timely planting. From early October to early November, it is more suitable for planting ginkgo trees. This is because: The reason why Ginkgo biloba is long-lasting. In addition to its physiological characteristics, an important reason is that the roots are harder to heal, but the leaves have fallen, the sap no longer flows, the tree stops growing, and of course no longer consumes large amounts of nutrients. As a result, the volume has been greatly reduced. In such circumstances, the roots of the injured tree, which has been injured during the growing season, will recuperate for a period of time and the wound will heal quickly, normally absorbing and accumulating nutrients, entering the second peak of development in the year, and the tree after the spring of the following year. The body is fully prepared for germination and growth.

Third, planting grafted seedlings. Grafting seedlings only need 5-6 years to enter the full fruit period. Grafting seedlings are characterized by a wedge-shaped callus at the grafting site; seedlings extending obliquely outward from the grafting site and forming an angle with the ground; branches appearing grayish black and the leaves cracking darker green. When the grafted seedlings are cultivated on their own, seedlings should be planted on the spot for 2-3 years. The rootstock should be at least 80 cm in height and about 1.5 cm thick. In the grafting of the rootstock at a height of 20-50 cm above the ground, it is necessary to directly select the 1-2 year-old robust shoots and full shoots from the results tree.

Fourth, choose planting seedlings. One-year-old seedlings with a height of 15 cm or more and a ground diameter of 1.2 cm or more are preferred. Three-year-old seedlings are preferably 1.6-2.2 meters in height and 3 cm in diameter. Make sure that the root system is complete without serious damage. Try to shorten the time of seedling transport and placement, with the seedlings, with the transport, with the planting.

V. Shugen planted. Ginkgo biloba is a fleshy root and has a more developed root system. Therefore, the root system must be stretched when it is planted. Otherwise, the phenomenon of "root-roots" will occur, which will affect growth. It is better to fill in the loam in the hole to dry it, and not to make it hard in the practical soil so as not to adversely affect the root system of Ginkgo biloba. The buried soil must be compacted layer by layer, so that the root system of Ginkgo biloba is closely combined with the soil, but it can only be used pedaling, and it cannot be compacted to prevent root damage. After planting, it should be irrigated with water so that the soil inside the hole and the seedling root system can be closely combined and the water can be fully absorbed. After watering, the ground naturally sinks, ensuring that the foundation is level with the ground or 1-2 cm higher.

Six, with the grant tree. Ginkgo biloba is a cross-pollination plant with different male and female strains, mainly relying on wind-pollination, often affecting pollination and fertilization due to wind, wind direction, low temperature, foggy days or precipitation and other climate factors. Therefore, it must be arranged in a 20:1 ratio during cultivation. The male plants pollinate the trees and they must be planted uniformly to facilitate pollination. If Ginkgo biloba pollination tree is not properly configured, or if the flowering season is overcast, artificial pollination should be carried out in time to ensure production.

Seven, cover the film. The most obvious effect of timely covering of the film after planting is to delay the temperature drop, resist moisture and moisten, warm the temperature and prevent cold, and can also make a lot of new roots in the young trees before and after the winter. Usually after the watering is completed, the soil should be ploughed and the soil should be kept in good condition. Then, the ginkgo seedlings were made into a shallow dish with a low height and a high depth, covering 1.2 m square mulch.

Eight, pouring frozen water. In the end of November to early December, the combination of buried soil and cold water should be used to block the frozen water once. It should not be too late. Due to watering too late, the winter temperature is low, and the ground temperature rises slowly, which is not conducive to the root system of the young tree to promote new roots. It is also not conducive to safe wintering and prone to frost damage.

Nine, smoke and cold. If there is a large frozen or cold current, the fire smoke can be set in a short time according to the size and direction of the ginkgo garden. Smoke smoke can drive away the cold, increase the temperature of 1-3 °C to play antifreeze effect.

Ten, buried soil seedlings. In order to make the seedlings safe for winter, after planting in the fall, the seedlings should be covered with soil and cold before the winter. The thickness of the 1-year-old seedlings should be 5 cm above the original soil mark, and the 3-year-old seedlings should be 8-10 cm above the original soil mark. After the soil is thawed in the spring of the end of March and the beginning of April in the following year, the seedlings are unearthed and straightened, and the tree plates are repaired. In order to prevent hares from eating bark and freezing injury, wheat straw and straw rope can be used, or a plastic film with a thickness of 0.008 cm can be cut into 6 cm wide strips. The seedlings are tightly packed from bottom to top, generally two layers are appropriate. .

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