Detailed Explanation of Key Techniques for Winter Management of Pomelo
Pomelo has a long history of cultivation in China and is a common fruit in our daily lives. Pomelo generally matures and goes on the market in autumn and winter, and management during this period is extremely important. It determines whether the plants can safely overwinter and is an important guarantee for a bountiful and stable pomelo harvest the following year, and is closely tied to growers' income. So how should pomelo be managed in winter? Let's take a look.
1. Restoring Tree Vigor
After pomelo flowers and sets fruit, the growth of the fruit consumes a large amount of nutrients from the plant. After the fruit is harvested, it often causes weakened tree vigor and yellowing and falling of leaves. Therefore, after harvesting the fruit, tree vigor should be restored in a timely manner; otherwise it will affect flower bud development the following year, leading to a decline in yield and affecting income. After harvesting the fruit, apply post-harvest fertilizer in a timely manner to supplement nutrients and promote the plant's tree vigor to recover as quickly as possible. The post-harvest fertilizer should be mainly quick-acting compound fertilizer, so that it can be absorbed by the root system as quickly as possible and provide nutrients to the plant.
2. Promoting Flower Bud Differentiation
After fruit harvest, due to the effect of nutrient deficiency, poor flower bud differentiation often occurs. At this time, measures should be taken to promote flower bud differentiation. There are generally two methods: physical regulation and chemical regulation. Physical regulation methods mainly include girdling, removing winter buds, pruning, root cutting and water control, and other operations on the plant, which can inhibit the growth of new shoots, help the branches and leaves accumulate more nutrients, and benefit flower bud formation and increase the fruit-setting rate the following year. Chemical regulation, on the other hand, involves spraying plant regulators to control the plant's hormone balance and promote flower bud differentiation.
3. Applying Overwintering Fertilizer
To enable the plant to safely overwinter, apply overwintering fertilizer before the winter freeze in combination with deep plowing and soil improvement. The overwintering fertilizer should be mainly organic fertilizer, combined with phosphorus and potassium fertilizers as well as other trace elements. Generally, for each mature fruiting tree, apply 10-15 jin of organic fertilizer, and it can also be increased or decreased accordingly based on the size of the plant, the number of fruits set, and the growth condition. Fertilization is generally carried out by digging trenches beside the plant's root system and applying the fertilizer.
4. Cleaning the Orchard
Cleaning the orchard in winter is also a key point in winter management. After a year, a large amount of dead branches and fallen leaves have accumulated on the ground of the pomelo orchard, and many sources of pests and diseases generally overwinter in these dead branches and fallen leaves, waiting to continue harming the plants the following year. Therefore, in winter, the orchard should be comprehensively cleaned, and the dead branches and fallen leaves on the ground should be centrally burned or deeply buried to reduce overwintering sources of pests and diseases. In addition, some diseased branches and leaves of the plants should also be dealt with together, and then pesticides should be sprayed on the orchard and the plants to once again eliminate overwintering sources of pests and diseases.
The above are winter management techniques for pomelo. We hope they can help you. If you want to learn more related knowledge, please follow us.