A Detailed Guide to the Nutrient Requirements and Scientific Fertilization Methods for Lychee
What are the nutrient requirements of lychee? How can it be fertilized well? For lychee fertilization, you can refer to the following methods: (1) Nutrient requirements of lychee. According to measurements, in an orchard with a yield of 1000 kg per mu, producing every 1000 kg of mature fruit requires 9.8 kg of nitrogen, 1.1 kg of phosphorus, and 6.6 kg of potassium, with a nutrient ratio of 10:1:7. After harvest...
What are the nutrient requirements of lychee? How can it be fertilized well?
For lychee fertilization, you can refer to the following methods:
(1) Nutrient requirements of lychee
According to measurements, in an orchard with a yield of 1000 kg per mu, producing every 1000 kg of mature fruit requires 9.8 kg of nitrogen, 1.1 kg of phosphorus, and 6.6 kg of potassium, with a nutrient ratio of 10:1:7. From after harvest to before heading, generally two or three flushes are produced before flower bud differentiation begins, and more nitrogen is needed; from flower spike emergence to petal fall, the main growth and development involve flower branches, flowers, and male and female flowers, and the proportion of phosphorus and potassium rises, but nitrogen is still dominant; from pollination to fruit maturity, the main process is fruit growth and development, and the required ratio of nitrogen, phosphorus, and potassium is the same as in the previous stage.
(2) Fertilization amount for lychee
① Base fertilizer: generally after fruit harvest, apply about 1000-2000 kg of decomposed organic fertilizer per mu and 40-50 kg of general-purpose compound fertilizer (such as San'an) (about 1-1.5 kg per plant). After the leaves of each new flush turn green, some foliar fertilizer such as 0.3% potassium dihydrogen phosphate can be sprayed.
② Pre-flowering fertilizer: generally applied before flowering, mainly phosphorus and potassium fertilizers, with 30-40 kg per mu (about 0.5-1 kg per plant) of high-potassium compound fertilizer. Do not apply excessive nitrogen fertilizer to avoid "flush shoots."
③ Fruit-swelling fertilizer: after fruit set, apply 30-40 kg per mu (about 0.5-1 kg per plant) of high-potassium compound fertilizer, which will play an important role in swelling the fruit and reducing pre-harvest fruit drop.
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