Fruit leaf surface spray fertilizer precautions

Fruit trees need to choose the type of fertilizer, and urea is preferred among nitrogen fertilizers. The second is to determine the optimum spray site. The movement of different nutrients in the tree is different, so the spraying parts should be different, especially the trace elements in the tree body have poor fluidity, it is best to spray directly on the needed organs. In addition, the leaf back absorbs faster than the leaf surface, and the spray back should focus on the leaf back. The third is to determine a reasonable concentration of fertilizer. Different concentrations must be used depending on the growth period and climatic conditions and tree species. The concentration of young leaves should be low, and the age-old leaves should be high; the areas and seasons with more rainfall can be higher, and vice versa. In addition, the spraying amount should be sufficient, the leaves are moist, and the drops are not suitable. At the same time, the foliar spray fertilizer concentration is generally low, and the fertilizer content is less. In order to improve the spraying effect, it is best to spray continuously 2-3 times or more. Interval 10-15 days.

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