The latest course of Chestnut seed Seedling raising techniques and methods

Chinese chestnut has a very long history in China, and its cultivation history has reached nearly 4000 years. There is a certain planting area in various provinces of our country, and now the market demand of Chinese chestnut is increasing every year. So many growers are constantly expanding their acreage. If you want to expand the planting area, then the seedling work is indispensable. The editor has brought you the seedling technology of chestnut seeds today. Let's take a look at it.

1. Land selection and preparation

First of all, we need to select the seedling land of Castanea mollissima, which should be based on sufficient soil fertility, thick and soft soil and normal drainage and irrigation, and the soil PH value should be controlled at about 6. Then in the winter of the year before sowing, apply sufficient base fertilizer in the field, control the amount of fertilizer application according to the planting area, and keep it at about 7500kg per mu. Then do a good job of soil preparation in the spring of that year, dig deep into the soil and eliminate the germs in the soil. The soil will be crushed and leveled, and ditches will be dug. Then make the field beds 0.5 meters wide and 0.15 meters high, keep the trail, and disinfect the soil four days before sowing.

2. Seed collection and storage

When the chestnut tree matures every autumn, it is necessary to do a good job of keeping seeds. Select the mature and full chestnut fruit as the seed, pick out the pests, diseases and wounds in the seeds, and then soak the healthy normal seeds in potassium permanganate solution for about 15 minutes for disinfection. Finally, the seeds were stored in cellars and other low-temperature environments. The main storage method of chestnut seeds is layered storage, each layer is covered with wet sand, and the degree of wet sand can be clustered by hand. Then in the process of storage, we should pay attention to the prevention and control of rodents, diseases and insect pests, control the temperature and humidity, and prevent mildew.

3. Sowing seeds at the right time

After soil preparation and disinfection, more than half of the seeds can be germinated and sown. Before sowing, we should first pick out the moldy and injured seeds to improve the seedling rate. Then control the density on the seedling bed, dig the seedling ditch, sprinkle compound fertilizer in each ditch, and control the dosage. After fertilizing, cover the fertilizer with a layer of fine soil to prevent the seeds from coming into direct contact with the fertilizer. Then put the seeds belly down in the seedling ditch, the row spacing is controlled at about 7 cm. Then cover the seeds with about two centimeters of fine soil, and then cover with grass to improve the ability of heat preservation and moisture preservation and prevent soil consolidation.

4. Post-broadcast management

After sowing, the seeds will break through the soil and emerge in about 40 days. In April, it is the initial growth stage of chestnut seedlings. At this time, attention should be paid to weeding, intercropping and the prevention and control of diseases and insect pests. To ensure the healthy growth of seedlings, and then Chinese chestnut entered the fast-growing period in June. At this time, the growth rate of Chinese chestnut seedlings is accelerated, so it is necessary to do a good job of water and fertilizer to meet the water and nutritional needs of Chinese chestnut. Timely topdressing nitrogen fertilizer, after water and fertilizer should pay attention to appropriate watering, to prevent excessive heat, resulting in seedlings being burned to death. After entering August, the amount of water and fertilizer should be controlled to prevent excessive nutrition from leading to the overgrowth of chestnut seedlings.

The above is a brief introduction to the seedling raising technology of Chinese chestnut seeds. There are many seedling raising methods of Chinese chestnut, among which grafting is common. We should choose the seedling raising method reasonably according to our own planting technology, environment and other factors. That's all for today's introduction. This article is for reference only. I hope it can help you all.