How to choose the seeds of Acer truncatum? What are the methods of raising seedlings?

Acer truncatum belongs to the genus Acer, which is the most common maple tree. It is named because the bulging Samara is shaped like Yuanbao. Acer truncatum is a multi-benefit and economic tree species with high-quality oil, tanning, plant protein, chemical raw materials, medicinal health care and ecological protection, special wood, red leaf characteristic landscape tourism and other resources, so its planting prospect is still very good. it also attracts the attention of many seedling growers. If you want to grow Acer truncatum well, you have to start with seed selection and seedling breeding.

How to choose the seeds of Acer truncatum?

First of all, the source of seeds is generally collected by themselves, but note that not all sturdy trees can be used as mother trees. Strictly speaking, the seeds used for sowing and raising seedlings should be provided by improved seed nurseries or improved seed bases. When collecting, mature seeds must be collected, which is characterized by brownish yellow or brown yellow pericarp and luster. It is best to harvest seeds on a sunny day when there is no wind or breeze. First clean up the debris under the tree, cover it with plastic film or woven cloth, gently tap the branch with a bamboo pole, and the seeds will fall down, and then collect and bag them.

After the seed collection is completed, the seedlings of Acer truncatum are selected for sowing with sound development, full kernel, good quality and no diseases and insect pests, so that the seedlings of Acer truncatum can have good results, high yield, strong resistance and so on.

What are the methods of raising seedlings?

1. Land selection and preparation

Select deep soil layer, good drainage, flat, fertile and loose sandy loam as nursery land. After the selection, the soil preparation work before sowing was carried out, such as crushing soil and conserving soil moisture, and so on. The seedling bed was made into a bed 1.5m wide, with a width of 1.2m and a width of 30cm.

2. Seed treatment

The seed must choose the Acer truncatum Samara with purity of more than 95% and germination rate of more than 90%. Sand storage was carried out 8 days before sowing. One day before sand storage, soak in clean water for 24 hours, then mix seeds with prepared fine sand. The ratio of seed to sand volume at 1:3 is fully mixed and stacked on a cool and ventilated ground. It can also be dug outside to accelerate germination.

3. Sowing seeds

Guanzhong area is suitable for sowing from mid-March to late March, generally using strip sowing method, row spacing 40cm, sowing soil moisture must be good. The sowing amount per mu is 10kg, the sowing ditch depth is about 3cm, and the ditch depth should be uniform. When sowing, it is necessary to open ditches, sow seeds and cover soil at the same time, and the thickness of soil cover is 2-3cm.

4. Emergence of seedlings

The time of emergence is about 20-30 days. Wheat straw can be gradually removed when more than 1x3 seeds break the ground and emerge from the seedling. In the nursery covered with plastic film, when the seedlings come out, they should be properly ventilated and cooled down, and the plastic film should be removed step by step.

5. Seedling stage management

Generally, it can be watered about 2 weeks after the seedlings come out, combined with topdressing urea 5-8kg per mu, and pay attention to pest control at the same time. When the seedlings unfold 3-4 leaves, the seedlings should be carried out in time to remove the overdense seedlings. The period from the first ten days of June to the end of August is the fastest growing period of seedlings, so we must strengthen the management. Generally, urea is applied once in 20 days combined with watering, about 10kg per mu. After the end of August, topdressing and irrigation should be stopped to prevent seedlings from overgrowing.

Generally speaking, the comprehensive value of Acer truncatum is very high. As a high-quality eco-economic tree species, Acer truncatum has high planting and promotion value, but the premise is to do a good job in seed selection and seedling cultivation in order to improve planting efficiency.

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