Longan seedling raising method

Longan is a very popular fruit, its nutritional value is relatively high, with blood Ansheng, nourishing heart and spleen and other functions. It is a kind of fruit which is used for food and medicine. It has a very extensive cultivation area in the tropical provinces of our country. The work of planting longan seedlings is very important, and the most common longan is seed breeding. So the editor brings you the method of raising longan seedlings today, let's take a look at it!

1. Land selection and fertilization

The nursery bed of longan should be selected on the soil with normal drainage and irrigation, flat terrain, thick and soft soil layer and sufficient fertility. After selecting the soil, it is necessary to prepare the soil and remove the stones and previous crops in the field. Then turn the soil to a depth of about 26-29 cm, and then make a border to dig a ditch. In soil preparation, we also need to apply sufficient base fertilizer, which is mainly rotten farm manure, combined with calcium, magnesium, phosphorus and other nutrients to fully ferment it. Then mix the fertilizer with the soil, mix it with the topsoil and prepare for sowing.

2. Seed treatment

The seeds of longan seedlings should be full and should not be dried and shrunk. When sowing, clean the pulp and mucus on the seeds, and then select the inferior seeds to ensure the overall quality of the seeds. Then soak the seeds in water to accelerate germination, spread a layer of sand in the shady area after soaking, put the seeds flat on the sand, then put a layer of sand on the seeds, and then cover the grass to maintain the moisture of the seeds and improve the germination rate. The budding temperature should be kept at about 25 degrees, not too high to prevent the high temperature from causing the seeds to lose their activity. after about 4 days, most of the seeds can be sown when they are white.

3. Sowing seeds at the right time

Before sowing, we should first dig the sowing hole, and the plant spacing of the sowing hole should be controlled at about 30 cm. Put a seed in each sowing hole, cover the fine soil after sowing, and then cover the border with a layer of grass to improve the water retention capacity and prevent the phenomenon of water shortage. To promote the emergence of seeds as soon as possible, we should control the number of seedlings according to the planting area. Generally speaking, the best number of seedlings per mu should be about 6500. If the seedlings are too dense, it will affect the thickness of longan trees. And it will reduce the transplanting survival rate and the crown expansion rate after survival.

4. Seedling stage management

When longan is sown, it is usually in summer, and the high temperature environment is very disadvantageous to the growth of longan seedlings. So we can plant some green manure such as soybeans in the field before sowing. When the green manure grows to about 20 centimeters, it is the sowing time of longan. At this time, the use of green manure can provide shade for longan seedlings and improve their survival rate. When the temperature gradually drops, the green manure can be pulled out and covered on the border as fertilizer. Then when the longan seedlings grow four leaves and begin to turn green, we can cut the root of the main root short. Can effectively improve customized survival and promote early results.

The above is a brief introduction to the method of raising longan seedlings. The method of raising longan seedlings is very important, we must pay more attention to planting. That's all for today's introduction. This article is for reference only. I hope it can help you all.