Litchi needs a certain amount of fertilizer to ensure the normal growth of litchi, and if it is not scientific, it is very likely that the production of litchi will be reduced or even closed.How to fertilize the lychee?The following is to introduce the fertilizer technology of litchi.
How to fertilize litchi scientifically?
The principle of litchi fertilization.
(1) lychee should pay attention to the application of organic fertilizer, fertilize it according to the growth period, reasonably match the nitrogen and phosphorus and potassium fertilizer, and adjust the fertilization plan according to the factors such as litchi variety, growth potential and climate.
(2) the soil acidity is stronger, and lime and calcium magnesium phosphate are applied to adjust the soil ph and the corresponding nutrients.
(3) appropriate fertilization method was adopted to apply micro element fertilizer in targeted application.
(4) the seedling period of litchi fruit is during the rainy season, and nitrogen fertilizer is used as much as possible to avoid urea or nitrate fertilizer.
(5) combination of fertilization and other management measures, such as drip irrigation and fertilization, fertilizer solution, etc.
Technique of fertilizing litchi.
Lychee results flowering tree.
Each strain (about 50kg) should be applied to 10 to 20 kg of organic fertilizer, 0.75-1.0kg of nitrogen fertilizer, 0.25-0.3 kg of phosphate fertilizer, 0.8-1.1kg of potash fertilizer, 0.25%-0.35kg of calcium fertilizer, 0.07-0.09 kg of magnesium fertilizer.There were no trees or fruit trees in the early years: 5 to 10 kg of organic fertilizer per plant, 0.4 to 0.6 kg of nitrogen fertilizer, 0.1-0.15 kg of phosphate fertilizer, 0.3-0.5 kg of potash fertilizer and 0.05 kg of magnesium fertilizer.
The fertilizer was used for 6 to 8 times after harvest (one tip and one fat), flowers before flowers, xie hua and fruit.According to the growth potential of litchi tree, it can be combined with the flower before and before the flower, or the combination of xie hua fei and zhuang guo fertilizer will be applied.Nitrogen in the four stages of the proportion is 45%, 45%, 20% and 35%, p in postharvest once into or points postharvest and spend the first two, potassium, calcium magnesium fertilizer fertilizer proportion is 30%, 10%, 20% and 10%.Florescence can be sprayed with potassium dihydrogen phosphate solution.
Orchards without boron and molybdenum, spraying 0.2% of borax before flowers, flowers and fruits expanded, plus 0.05% ammonium molybdate;Zinc sulfate or compound trace elements of 0.2% were sprayed at the end of litchi.In the orchard of pH5.0, 100 kg of lime was applied to each mu.
The above is the introduction of some lychee fertilization techniques, the fruit farmers who grow litchi, can refer to the techniques of fertilization, combine the actual planting situation, and properly fertilize.
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