Seedling raising techniques of Toona sinensis

Spring is the breeding period of Toona sinensis, and the demand of Toona sinensis in the market is increasing in recent years. Besides edible, Toona sinensis is also an excellent tree species for landscaping. So do you know how to raise Toona sinensis seedlings? Come and have a look with the editor.

1. Soaking seeds to accelerate germination

First of all, the fresh planting which is suitable for local planting should be carried out before it is gone. After selecting the seeds, it is necessary to soak the seeds and accelerate germination. The method also varies according to the production conditions. Poor conditions can be poured into 30-40 degrees warm water, while pouring while soaking, when the water temperature dropped to 25 degrees is a new warm water scrub, wash and then soak in warm water for 12 hours. After that, the seeds are fished out, dried, mixed evenly with the wet sand, and placed in the greenhouse to accelerate germination. The temperature in the greenhouse should be kept at about 25 degrees, and 1/3 of the seeds can be sown when they are white a week later.

2. Sowing at the right time

Toona sinensis likes the warm environment and is sensitive to low temperature. generally, the spore germination temperature is 8-12 degrees and can grow normally above 14 degrees, so the suitable sowing time is generally 3-4 months. If the way of sowing and plastic film mulching can be sowed properly in advance, the land with loose and fertile soil and sufficient light should be selected when sowing, the bottom water should be irrigated first, and then raked flat in time, and the ditch should be 5-6 cm wide according to the row spacing of 25 × 30 cm. Generally, the amount of sowing per mu is 3-4 kg to ensure that there are about 15000 seedlings per mu.

3. Seedling stage management

If there is no plastic film mulching after sowing, the soil can be broken in a week and the seedlings can be completed in half a month. If plastic film mulching is used, the emergence of seedlings can be accelerated, but attention should be paid to burning seedlings at high temperature, so the membrane should be broken in time after the seedlings are unearthed. At the same time, the membrane mouth is tightened. After emergence, the root system of the seedlings is underdeveloped, and the soil cover is too shallow, so they are afraid of water shortage and low temperature and cold, so they should be watered once in time in the three-leaf stage, preferably with warm water. When the seedlings grow to more than 5 cm, it is necessary to appropriately reduce the amount of water, pay attention to ploughing and weeding, when growing to 4-5 leaves, it is necessary to strengthen fertilizer and water management and cultivate strong seedlings. The growth of Toona sinensis is prosperous in summer, so it is necessary to apply phosphorus and potassium fertilizer combined with foliar fertilizer to promote the Lignification of seedlings, improve the cold resistance and make the buds full.

The above is the introduction of the seedling technology of Toona sinensis. I hope it can help you. If you want to know more about it, please follow us.