America's red maple production
I. Selection and treatment of the nursery
In the united states, red maple seedlings should choose sandy soil that is micro-acid, wet, permeable and irrigated in good condition. Before the show, five thousand kg of organic fertilizer per acre and 50 kg of nhk compound fertilizer per acre. In order to prevent pests, especially underground pests, each acre will require iron sulphate 8-10 kg, phosphorus granules 2kg, and fine earth-smashed, then deep tillage, dredge and flattening, requiring a width of 1 metre, 30 cm wide and 20-30 m long。
Seed treatment, planting time and methods
The united states red maple seed, which is not dormant, can be broadcast either in the autumn or in the spring, and is now mainly broadcast. The planting time is right between mid-march and mid-april. Seeds are mixed with wet sand at a ratio of 1:3 for a month at 3-5°c. During the build-up period, regular inspections and management are carried out, seeding is detected and seeding is carried out in a timely manner. The seeding takes place at a time when the bottom water is pumped into the platinum and is then soaked in the water, with around 200 seedlings per square metre. The seeding is followed by 0. 5 centimetres of fine soil, which, in order to protect the lumber, increases the temperature, so that the seeds are fertilized early and fully fertilized to cover the membranes or small arches, which are ventilated and have an appropriate shade at temperatures exceeding 30°c at noon. It's about 15 to 20 days after planting
Iii. Shrimp management and development
When the seedlings are released, they grow slowly at an early stage, with low resistance being often sprayed, soil moisture maintained and weed removed in a timely manner, weeding is carried out in a timely manner, and as much soil as possible is cultivated to prevent inversion. When a seedling grows to five centimetres, it is generally filled with water, with weakness, disease and small seedlings at a distance of 10 to 15 centimetres, and with a healthy and well-developed tree. In early june, urea was followed with water, 15 kg per acre, 10-15 kg per acre in mid-july, and water was properly controlled later. In the case of pests such as moths, 2. 5% of bromocythylene is sprayed with 4,000 times the fluid。
The height of the seed can be as high as 1 to 1. 5 metres in that year, and the next spring it can be planted。
The red maple market in the united states will gradually produce excellent horticultural varieties instead of seed breeding trees. Overpriced imports of seedlings are also replaced by domestic horticultural varieties that do not reproduce sexually. After all, the cost of imports is not too bad。
America's autumn maple is the best american red maple species. The use will undoubtedly increase in a few years. The level of competition in the market will also increase. At this point, we must be wary of some bad traders using seed-producing seedlings to impersonate the real american autumn maple. Specific identification methods for consulting professionals
