How to choose the planting environment and location of ginkgo trees? Planting Management measures of Ginkgo biloba

How to choose the planting environment and location of ginkgo trees? Planting Management measures of Ginkgo biloba

1 planting technology

1.1 selection of planting environment and location. Ginkgo biloba is a warm-positive species, so it is suitable to be planted in soil or sandy soil with sufficient light, deep soil, loose soil, fertile soil and sufficient water. Because the ginkgo tree grows slowly and has a long life, it is necessary to choose places with high topography, convenient transportation and good drainage capacity in garden application. As the ginkgo tree has a strong ability to adapt to the external environment, some acidic and alkaline soil can also plant ginkgo trees after certain transformation.

1.2 planting technology. Ginkgo trees should be simply shaped and pruned without affecting the original tree shape before planting. Ginkgo trees also have certain requirements for tree pits when they are planted. If the trees have soil balls, the diameter of the soil balls of the trees will be about 80 cm larger than that of the ginkgo trees planted. If the trees do not have soil balls, the tree pits will be about 50 cm larger than the root diameter of the ginkgo trees planted. When planting trees, ginkgo trees with soil balls should be upright and aligned, and the surrounding soil balls should be compacted with fine soil, with a depth of more than 10 cm. When planting ginkgo trees without soil balls, make sure that the roots of the trees naturally stretch in the pit, and then align the trees with fine soil compaction, and the depth had better be covered with soil over the rhizome of more than 10 cm.

2 Management measures

2.1 Irrigation. Attention should be paid to watering ginkgo trees after planting. The first watering is root water, which must be thoroughly watered. If there is a shortage of water, it should be watered thoroughly every 5 days. Ginkgo biloba does not need to be watered frequently after it survives. In the northern region, trees are watered once before sprouting after thawing. When the weather is dry in June, it is the peak period of ginkgo growth in a year, which can be watered once. The second peak period of ginkgo growth in a year is late August, which can be watered again.

2.2 fertilization. The best season for fertilization is generally in spring and summer, ditching beside the trees, mixing fertilizer and topsoil evenly and then filling it. If you apply too much fertilizer in spring, you can apply fertilizer once a year, otherwise you will apply fertilizer again in late August.

2.3 pruning. Ginkgo tree as an ornamental tree to maintain the beauty of the tree, it is necessary to prune the tree properly in time, and cut off some withered branches, twigs, overlapping branches, upright branches and disease and insect branches in winter pruning, and usually apply paint at the pruning mouth in order to prevent water loss after pruning.

2.4 prevent cold and keep warm. In winter in the north, the grass rope is usually wrapped around the trees, and the trees are wrapped in old newspapers to protect against the cold. Nowadays, with the emergence of more and more new materials, we can choose the colors matched with the tree environment to protect them from the cold. The method of whitening the trunk can also be used to keep the tree warm. This method generally uses salted lime water or stone-sulfur mixture to whiten the trunk in autumn, while using the principle of reflection to reduce the absorption of solar radiation by the trunk. By reducing the diurnal temperature difference of the trunk, the trees will not be frozen, and this method can also remove some pests that destroy trees.

(3) Disease and pest control

3.1 to prevent the invasion of diseases and insect pests of ginkgo trees, scientific production should be carried out from the aspects of seed collection, seedling breeding and late management, so as to cut off all sources of diseases and insect pests.

3.2 do a good job of sterilization and disinfection of seeds and soil when sowing.

3.3 remove the wild hosts of pests inside and outside the garden in time, and isolate the exotic insect sources.

3.4 apply more phosphorus and potassium fertilizer to enhance the immunity of ginkgo biloba branches to diseases and insect pests.

3.5 remove the remains of various diseased plants before planting, so that ginkgo biloba can be kept in a ventilated and transparent environment.

3.6 cut off the killed branches while pruning, and then clear them out.

3.7 use pesticides rationally and catch insects artificially as far as possible.