[cultivation techniques of American red maple] how to cultivate American red maple

American red maple is a kind of colorful leaf tree species with very good ornamental effect, and its maple leaves are as red as the sea, which can win the viewer's attention at a glance, and is very prominent in any garden.

Planting method of American red maple in spring

1. The land to be planted with red maple is ploughed deeply, and then sprinkled with organic fertilizer. The amount of organic fertilizer is about 2 square meters per mu, which is used as the base fertilizer for the growth of seedlings in the same year. At the same time, carbofuran soil insecticides can be used to eliminate underground pests, and then rotary tillage can be used for soil rotary tillage, which has reached a good swelling degree of planting money soil.

two。 Before planting seedlings, trim the roots of red maple seedlings to promote the growth of red maple seedlings, and at the same time, touch the roots with fungicides, generally diluted with carbendazim or methyl topiramate for about 20 minutes. When touching the roots, the stems of seedlings can also be treated with a small amount of fungicides.

3. When planting red maple seedlings according to the fixed row spacing, it is necessary to lift the seedlings after planting, so that the root system of red maple seedlings can spread better.

4. After planting the red maple, it needs to be watered in time, preferably three times in a row. Ensure that the red maple seedlings and soil are fully compacted and hydrated.

Relationship between planting density and growth rate of American red maple

The growth rate of American red maple is slow in the seedling stage. when the seedlings grow to a certain time, the planting density should be adjusted to make the seedlings accept photosynthesis to the maximum extent. Generally, according to the size of the dry diameter (dry height 30 cm), the dry diameter is less than 1 cm, and the plant row spacing is 0.8 m × l m; the stem diameter is 1 to 2 cm, and the plant row spacing is 1.2 m × 1.1 m; the stem diameter is 2 to 3 cm, and the plant row spacing is 1.6 m × 1.4; the stem diameter is 3 to 4 cm, and the plant row spacing is 2.2 m × 1.8 m; the stem diameter is 4 to 5 cm, and the plant row spacing is 2.3 m × 2.0 m. If the dry diameter is more than 5 cm, the plant row spacing is 2.8 m × 2.2 m. When transplanting, it is necessary to prune the seedlings first, remove the middle roots, part of the long and thin roots and the top flourishing and growing branches, and the seedlings with a stem diameter of more than 2 meters must be transplanted with mud balls.

The cultivation of American autumn flame red maple needs to cultivate soil, and the soil with serious sandiness and poor drought resistance should be fertilized with heavy clayey fine soil and moldy soil; for clayey soil, apply more organic fertilizer, properly adjust the viscosity of Gaza soil and open ditches for drainage; for the heavily viscous and easily stagnant nursery, drainage ditches should be opened with a depth of about 50 centimeters, so that the groundwater level can be controlled below the root.

How to maintain American red maple at the turn of autumn and winter

Timely irrigation of frozen water: although the evaporation in winter is small and the water demand of American red maple is relatively small, it affects the cold resistance of American red maple and its growth and development in the coming year. Therefore, in early November, the newly planted American red maple should be irrigated once, that is, "frozen water". After irrigation, a mound is built at the base of the American red maple to improve its cold resistance.

Do a good job in fertilization: after autumn, the root system has another growth peak. Therefore, according to the age and planting time of American red maple in late autumn and early winter, some organic fertilizer or chemical fertilizer should be applied properly, and appropriate amount of water should be irrigated to make fertilizer infiltrate. This can promote the development of new roots and enhance the tree potential.

Trunk whitening: winter trunk whitening can not only reduce the damage caused by the sunny bark due to the great temperature difference between day and night, but also eliminate the diseases and insects overwintering in the cracks in the bark. The formula of whitening agent is 10 parts of quicklime, 1 part of salt, 1 part of sulfur powder and 40 parts of water, which can be carried out in November.

In addition to the American red maple cultivation techniques introduced above, we should also pay attention to: red maple seedlings are easy to be covered by weeds, resulting in slow growth and even death, requiring artificial weeding around the seedlings and planting seedlings after 2 years. In order to save labor, herbicides such as glyphosate can be used.