Detailed Explanation of the Latest Fertilization Methods and Technical Points for Lychee

Lychee is one of the more popular fruits, its taste is sweet and delicious, and it was already deeply loved by everyone in ancient times. So how is lychee fertilized? Generally speaking, lychee fertilization needs to be carried out flexibly according to different climates, varieties, growth stages, and growth conditions. It is necessary to consider both the current situation and make plans for subsequent growth. So how exactly is it done? Let's take a look together with Qinong Web.

1. Base fertilizer

Base fertilizer is the most basic nutrient for the survival and growth of lychee. For base fertilizer, we generally need to follow one principle, which is the principle of “heavily applying base fertilizer.” Because only sufficient base fertilizer can make the lychee tree grow quickly, and it can also inhibit the lychee tree from sprouting in winter. The base fertilizer here generally refers to the first fertilization at planting time. We mainly use a combination of decomposed farmyard manure and compound fertilizer, with a dosage of about six thousand jin and one hundred jin per mu, and fertilization is carried out by digging holes.

2. Growth fertilizer

Growth fertilizer generally occurs during the seedling stage of the lychee tree. In order to allow the lychee tree to grow quickly, we generally fertilize it multiple times during its growth period. About half a month after the base fertilizer, if the lychee tree is still growing very slowly, then we can apply about fifty jin of urea in an appropriate amount. After the lychee tree recovers its growth, we can apply about sixty jin per mu of phosphorus fertilizer and potassium fertilizer as a top dressing. Before it flowers and sets fruit, growth fertilizer basically needs to be applied four to five times a year, each time the same as the second time, but the amount can be increased or decreased according to the growth condition of the sapling.

3. Flower fertilizer

Flower fertilizer also means that at this time the lychee tree is already a mature fruit tree, and flower fertilizer is divided into two stages. The first is the flower promotion stage. Flower promotion fertilizer generally starts to be applied about half a month before flowering. We mainly use a combination of livestock manure and compound fertilizer, about one thousand jin per mu, and then each lychee tree also needs an appropriate amount of boron fertilizer and zinc fertilizer added. The second is the flower strengthening stage, that is, when flower buds appear, we need to carry it out immediately, because after it blooms it will quickly finish flowering. This time we mainly use potassium fertilizer and appropriately add a little compound fertilizer, which can be applied by spraying, so the effect is better.

4. Fruit fertilizer

After the flowers fade, the lychee enters the fruiting stage, and the fruiting stage is also divided into two steps. The first is to protect the fruit, that is, to ensure the success rate of fruit setting. Generally, fertilization needs to be carried out one day after fruit setting. We mainly spray foliar fertilizer, which can achieve a very good fruit-protecting effect. Foliar fertilizer generally includes zinc fertilizer, magnesium fertilizer, ammonia fertilizer, potassium fertilizer, and boron fertilizer. The second is the fruit strengthening stage, that is, when the lychee grows to the size of a peanut, we need to begin irrigating with fruit-strengthening fertilizer, mainly by irrigating with piled decomposed farmyard manure and compound fertilizer mixed with water, which is beneficial to the expansion of the fruit.

5. Maintenance fertilizer

Maintenance fertilizer is a fertilization applied after the lychee is harvested. Its main purpose is to prevent the aging of the lychee tree, prepare for a high yield of lychee the following year, and at the same time it can also inhibit the lychee tree from sprouting and growing in winter. In fact, to a large extent it is basically similar to the base fertilizer applied in the first year. For maintenance fertilizer, we mainly use farmyard manure and an appropriate amount of compound fertilizer and apply it by trenching, which is beneficial to the storage of nutrients, makes them less likely to volatilize, and allows them to be fully utilized in time in the coming spring.