Longan fertilization and time

Longan is a kind of fruit that many people like to eat very much. It has a large planting area in our country. When planting longan, its fertilization is very important. Reasonable fertilization is the key to meet the growth of longan and an important measure to ensure the yield and quality of longan. So how to fertilize longan? The following editor brings you the fertilization and time of longan, let's have a look!

1. Post-fruit fertilizer

The application of post-fruit fertilizer is very important. It is usually the harvest time of longan around August to September every year. At this time, we should pay attention to fertilizing as soon as possible after fruit picking. Avoid fruit tree nutrition with the fruit picking and lose a lot of nutrition, to ensure that the fruit tree can restore the tree potential as soon as possible. To promote longan trees to sprout autumn shoots as soon as possible and enhance their growth ability. This fertilization is mainly based on high-quality farm manure, such as rotten cake fertilizer, soil miscellaneous fertilizer, etc., combined with the application of an appropriate amount of quick-acting fertilizer, this time the amount of fertilizer should be kept at more than half of that of the whole year.

2. Pre-anthesis fertilizer

After applying post-fruit fertilizer, we should pay attention to applying pre-flowering fertilizer. The application time of pre-flowering fertilizer is usually from January to February, as the name implies, that is, before flowering. The main purpose is to ensure the vigorous growth of the flower spike and enhance the development ability of the flower organ. This time, nitrogen fertilizer is the main fertilizer, combined with appropriate amount of phosphorus and potassium fertilizer. However, we should pay attention to control the amount of nitrogen fertilizer, so as to avoid excessive nitrogen fertilizer leading to excessive growth. Then the fertilizer of promoting shoot and strong ear was applied in the middle and first ten days of April. To promote the growth of summer shoots of longan trees, enhance the growth ability of flowers and ears, and improve the fruit setting rate, it is necessary to appropriately increase the application rate of potash fertilizer.

3. Strong fruit and promote shoot fertilizer

The application of strong fruit to promote shoot fertilizer can not be ignored. This is the main fertilization period to ensure the yield and quality of longan fruit, which should be applied when the young fruit begins to expand around the middle and last ten days of June every year. The main purpose of fertilization in this period is to ensure the rapid development of fruit, improve the germination rate of summer shoots, and ensure its full growth. This fertilization is still based on nitrogen fertilizer, combined with appropriate amount of phosphorus and potassium fertilizer, to ensure to meet the nutritional needs of longan fruit expansion and summer shoot germination.

4. Fertilization in full fruit period

In addition to the above fertilization, the period from July to early August is a critical period for the rapid growth of longan fruit pulp. At this time, the root growth ability of longan is relatively strong, and its nutrient absorption capacity is also relatively exuberant. Therefore, we should apply rotten manure or phosphorus and potassium fertilizer, which can effectively reduce fruit drop and increase its yield. At the same time, it can also alleviate the age phenomenon of longan trees. If the fertilizer source is less, then fertilization is the main fruit tree heading stage and summer shoot growth and fruit expansion period.

The above is a brief introduction of longan fertilization and time. That's all for today's introduction. This article is for reference only. I hope it can help you all.