How to Manage Chinese Mahogany (Toona sinensis) Seedlings? Latest Key Points Explained
Chinese mahogany (Toona sinensis) is a tree-type vegetable, and its market price is very high. Right now it is also the peak market season for Chinese mahogany, and market demand is relatively high. The edible part of Chinese mahogany is the young bud, which contains very rich nutrients. When planting Chinese mahogany, management during the seedling stage is very important, as it directly determines the yield of Chinese mahogany. So how should Chinese mahogany be managed during the seedling stage? Let's take a look together below!
1. Remove the film in time
When sowing Chinese mahogany seeds, a layer of film needs to be covered to improve the soil's heat preservation and moisture retention. This can effectively increase the seed germination rate, but after the seeds germinate, emerge, and break through the soil, we must uncover the seedlings in time. This prevents some seedlings with poor soil-breaking ability from being unable to emerge. And if the film is not removed in time, it will also affect the seedlings' light absorption and affect their normal growth. So removing the film in time is the key to ensuring normal seedling growth, and after removing the film we should also pay attention to watering once to keep the soil moist and promote the seedlings' water absorption.
2. Thinning and final thinning
After the seedlings emerge, their growth progress will differ due to various factors such as nutrients and weather. Therefore, when the seedlings grow to about 1-2 leaves, we should pay attention to doing the thinning work well, removing weak seedlings with poor growth and pests or diseases. And they should be distributed evenly to avoid overly dense planting, keeping the spacing between robust seedlings at about 4 cm. Then do the weeding work well, and combine it with fertilization, mainly with diammonium phosphate. After watering thoroughly, shallowly hoe the soil once, and when hoeing, pay attention to the force to prevent damaging the seedling roots.
3. Final thinning and transplanting
When the seedlings grow to about 3 true leaves, final thinning can be done appropriately, and then until early June, when the seedlings grow to 5 true leaves and reach a height of about 9 cm, they should be transplanted in time. This is because the nutrient conditions of the seedling bed can no longer meet the nutrients needed for the growth of Chinese mahogany seedlings. When transplanting, pay attention to controlling the plant and row spacing well, keeping it at about 12-14 cm. Some weak and dead seedlings should be eliminated, and thick, strong seedlings should be retained. One day before transplanting, water appropriately to prevent the soil from being too dry and causing root damage during transplanting, then transplant in time and water to promote survival.
4. Management after planting
After the Chinese mahogany seedlings survive, management should be strengthened, and fertilizer and water work should be done well according to the seedlings' growth conditions and soil fertility. This meets the nutrient and water needs of seedling growth, and then weeding should be done appropriately to prevent affecting the normal growth of the seedlings. And in the middle and later stages of seedling growth, pinching work also needs to be done well to prevent the central growing point from growing too strongly and causing excessive vegetative growth. Then appropriately spray agents such as paclobutrazol to inhibit seedling growth, control plant height well, and adjust the tree shape of the Chinese mahogany tree. This improves the accumulation of nutrients in the tree body and promotes the growth of the terminal bud.
The above is a brief introduction to the key points of Chinese mahogany seedling stage management. The seedling stage management work of Chinese mahogany is very important, and everyone must pay close attention to it, otherwise it will have a relatively large impact on planting benefits. That is all for today's introduction. This article is for reference only. Thank you for reading and supporting.